w3school.com

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Free website and domain report on w3school.com

Last Updated: 23rd October, 2023 Update Now
Overview

Snoop Summary for w3school.com

This is a free and comprehensive report about w3school.com. The domain w3school.com is currently hosted on a server located in Piscataway, New Jersey in United States with the IP address 108.175.168.68, where the local currency is USD and English is the local language. Our records indicate that w3school.com is privately registered by REDACTED FOR PRIVACY. W3school.com has the potential to be earning an estimated $6 USD per day from advertising revenue. If w3school.com was to be sold it would possibly be worth $4,387 USD (based on the daily revenue potential of the website over a 24 month period). W3school.com is quite popular with an estimated 2,104 daily unique visitors. This report was last updated 23rd October, 2023.

About w3school.com

Site Preview: w3school.com w3school.com
Title: Mega site of Bible Information
Description:
Keywords and Tags: armageddon, audio bible, bible doctrines, bible studies on-line, bible study sermons, biblestudies, christian bible studies, free biblestudies, major global religions, prayer, sin list, spiritual warfare
Related Terms: w3school
Fav Icon:
Age: Over 24 years old
Domain Created: 29th January, 2000
Domain Updated: 14th January, 2021
Domain Expires: 29th January, 2022
Review

Snoop Score

2/5

Valuation

$4,387 USD
Note: All valuation figures are estimates.

Popularity

Modest
Note: Popularity is estimated.

Rank, Reach and Authority

Alexa Rank: 273,578
Alexa Reach:
SEMrush Rank (US):
SEMrush Authority Score:
Moz Domain Authority: 0
Moz Page Authority: 0

Organic vs Paid (Google Ads)

Traffic

Visitors

Daily Visitors: 2,104
Monthly Visitors: 64,039
Yearly Visitors: 767,960
Note: All visitors figures are estimates.

Visitors By Country

Revenue

Revenue

Daily Revenue: $6 USD
Monthly Revenue: $183 USD
Yearly Revenue: $2,189 USD
Note: All revenue figures are estimates.

Revenue By Country

SEO

Backlinks Analysis (SEMrush)

Top New Follow Links

Top Ranking Keywords (US)

Domain Analysis

Value Length
Domain: w3school.com 12
Domain Name: w3school 8
Extension (TLD): com 3
Expiry Check:

Page Speed Analysis

Average Load Time: 7.56 seconds
Load Time Comparison: Faster than 2% of sites

PageSpeed Insights

Avg. (All Categories) 58
Performance 99
Accessibility 63
Best Practices 80
SEO 50
Progressive Web App 0
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
URL: http://w3school.com/
Updated: 24th May, 2021

3.33 seconds
First Contentful Paint (FCP)
19%
54%
27%

0.00 seconds
First Input Delay (FID)
95%
3%
2%

Simulate loading on desktop
99

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for w3school.com. This includes details about optimizing page load times which can result in a better user experience.

Metrics

First Contentful Paint — 0.7 s
The time taken for the first image or text on the page to be rendered.
Speed Index — 0.8 s
The time taken for the page contents to be visibly populated.
Largest Contentful Paint — 0.9 s
The timing of the largest text or image that is painted.
Time to Interactive — 0.7 s
The time taken for the page to become fully interactive.
Total Blocking Time — 0 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).
Cumulative Layout Shift — 0
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Other

First CPU Idle — 0.7 s
The time taken for the page's main thread to be quiet enough to handle input.
Max Potential First Input Delay — 20 ms
Users could experience a delay when interacting with the page.
First Meaningful Paint — 0.7 s
The time taken for the primary content of the page to be rendered.
Estimated Input Latency — 10 ms
The time taken for the page to respond to user input (during the busiest 5 second window of page load). Users are likely to perceive w3school.com as laggy when the latency is higher than 0.05 seconds.
Network Requests
Below is a list of network requests that were made during page load.
URL Protocol Start Time (Ms) End Time (Ms) Transfer Size (Bytes) Resource Size (Bytes) Status Code MIME Type Resource Type
http://w3school.com/
http/1.1
0
218.3420000365
232477
232129
200
text/html
Document
http://w3school.com/CSS/index.css
http/1.1
233.4480000427
305.51500001457
6631
6288
200
text/css
Stylesheet
http://widget.supercounters.com/hit.js
http/1.1
233.6260000011
295.15300004277
1997
3798
200
application/javascript
Script
https://www.w3counter.com/tracker.js?id=72029
h2
233.83799998555
338.843000005
1280
1913
200
application/javascript
Script
http://w3school.com/image3/Banner-poem.jpg
http/1.1
234.45899994113
340.84499999881
11341
10994
200
image/jpeg
Image
http://w3school.com/image3/banner-blog.jpg
http/1.1
234.5900000073
449.90100001451
9616
9270
200
image/jpeg
Image
http://w3school.com/image3/banner-bible-almanac2.jpg
http/1.1
234.77300000377
265.02699998673
14309
13963
200
image/jpeg
Image
http://w3school.com/image3/Jerusalem_Home_Page.jpg
http/1.1
235.65399996005
522.61300000828
160750
160401
200
image/jpeg
Image
http://w3school.com/image3/132.jpg
http/1.1
237.88599995896
500.23300002795
28955
28608
200
image/jpeg
Image
http://w3school.com/image3/104c.jpg
http/1.1
238.03400003817
495.0630000094
39698
39351
200
image/jpeg
Image
http://w3school.com/image3/126d.jpg
http/1.1
238.22399997152
485.58899993077
14715
14368
200
image/jpeg
Image
http://w3school.com/image3/83c.jpg
http/1.1
238.44600003213
502.13000003714
50801
50454
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/bearded_man.jpg
http/1.1
238.63899998832
465.13299993239
22490
22143
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/pray_2_revised.jpg
http/1.1
238.80699998699
325.10899996851
20628
20281
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/whats_going_on.jpg
http/1.1
238.985999953
342.31400000863
18386
18039
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/Israel_is_born.jpg
http/1.1
239.19100000057
508.22800002061
44580
44233
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/May_14_1948_color.jpg
http/1.1
239.36899995897
490.0749999797
23232
22885
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/church_small.jpg
http/1.1
239.54999994021
493.45800001174
30455
30108
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/atomic_blast.jpg
http/1.1
239.72599999979
495.91099994723
29863
29516
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/china_map.jpg
http/1.1
240.0670000352
1512.8339999355
42158
41811
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/praying_hands.jpg
http/1.1
240.28799997177
320.78399998136
13094
12747
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/Rapture.jpg
http/1.1
241.0319999326
330.56599996053
27832
27485
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/missed_the_rapture.jpg
http/1.1
243.09799994808
363.87000000104
24147
23801
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/fighter_planes.jpg
http/1.1
243.46899997909
333.57200003229
24765
24418
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/Israeli_flag.jpg
http/1.1
243.70200000703
1517.8140000207
20776
20429
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/Vatican_1_revised.jpg
http/1.1
243.85900003836
379.44599997718
33651
33305
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/three_Jews_revised.png
http/1.1
244.18799998239
1506.3190000365
54109
53763
200
image/png
Image
http://w3school.com/image3/Photos_homepage/unexpected.jpg
http/1.1
244.52099995688
1504.7969999723
22472
22125
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/Antichrist_killed_revised.jpg
http/1.1
244.64699998498
1465.8049999271
29920
29573
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/126d_revised.jpg
http/1.1
244.85899996944
335.22200002335
35808
35461
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/jews_fleeing.jpg
http/1.1
245.02499995288
343.76199997496
19366
19019
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/666revised.jpg
http/1.1
245.38899993058
477.72299998906
19826
19479
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/guillotine_2_small.png
http/1.1
245.51699997392
357.83699993044
11508
11163
200
image/png
Image
http://w3school.com/image3/Photos_homepage/front_view_of_vatican.png
http/1.1
245.89699995704
1487.1979999589
42338
41992
200
image/png
Image
http://w3school.com/image3/Photos_homepage/Locust1.jpg
http/1.1
246.04899995029
490.81999994814
19919
19572
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/darkness.jpg
http/1.1
246.54299998656
1452.6139999507
2348
2003
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/many_soldiers_resized.jpg
http/1.1
246.81499996223
1508.7030000286
25796
25449
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/street_in_front_of_bus_station.jpg
http/1.1
247.22699995618
1516.7639999418
36002
35655
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/cross_blood_stained_revised.jpg
http/1.1
248.21400002111
1490.9340000013
13541
13194
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/terrified_man.jpg
http/1.1
250.75899995863
1520.831999951
22502
22155
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/Backside_Mt_of_Olives.jpg
http/1.1
251.0300000431
1510.479999939
34657
34310
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/Mount_Megiddo.jpg
http/1.1
251.24899996445
1515.1739999419
25036
24689
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/earthquake.jpg
http/1.1
251.5269999858
478.24099997524
25773
25426
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/eastern_gate.jpg
http/1.1
251.83900003321
500.75799995102
27385
27038
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/Are_you_ready_to_meet_Jesus1.jpg
http/1.1
252.312000026
501.39899994247
24579
24232
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/Baptism_In_India_small.jpg
http/1.1
252.64500000048
328.05799995549
13392
13045
200
image/jpeg
Image
http://w3school.com/image3/57edited.jpg
http/1.1
253.41100001242
1547.7309999987
179307
178958
200
image/jpeg
Image
http://w3school.com/email4.gif
http/1.1
253.92299995292
318.6149999965
10651
10305
200
image/gif
Image
http://www.supercounters.com/fc.php?id=1280418&v=1&w=0&ua=Mozilla%2F5.0%20(Macintosh%3B%20Intel%20Mac%20OS%20X%2010_14_6)%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F90.0.4420.0%20Safari%2F537.36%20Chrome-Lighthouse&ref=&url=http%3A%2F%2Fw3school.com%2F&sw=800&sh=600&rand=73&style=11&m=9
http/1.1
309.00499993004
364.31099998299
291
40
200
application/x-javascript
Script
http://w3school.com/image3/Photos_homepage/backround_L.jpg
http/1.1
309.55400003586
1517.5210000016
24636
24289
200
image/jpeg
Image
https://pulse.w3counter.com/pulse.js?id=72029
h2
341.53600002173
438.68799996562
1374
1871
200
application/javascript
Script
https://www.w3counter.com/tracker.php?id=72029&userAgent=Mozilla%2F5.0%20(Macintosh%3B%20Intel%20Mac%20OS%20X%2010_14_6)%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F90.0.4420.0%20Safari%2F537.36%20Chrome-Lighthouse&webpageName=Mega%20site%20of%20Bible%20Information&ref=&url=http%3A%2F%2Fw3school.com%2F&width=800&height=600&rand=888
h2
341.68800001498
469.98199995141
1337
328
200
image/png
Image
http://widget.supercounters.com/images/11.gif
http/1.1
503.88600002043
553.57099999674
1310
532
200
image/gif
Image
http://pulse.w3counter.com/ping.js?id=72029&activity=reading&userAgent=Mozilla%2F5.0%20(Macintosh%3B%20Intel%20Mac%20OS%20X%2010_14_6)%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F90.0.4420.0%20Safari%2F537.36%20Chrome-Lighthouse&webpageName=Mega%20site%20of%20Bible%20Information&ref=&url=http%3A%2F%2Fw3school.com%2F&rand=631
http/1.1
505.25099993683
592.8380000405
604
0
200
application/javascript
Script
Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
247.508
7.048
261.621
5.53
267.804
6.168
366.582
29.062
395.675
102.628
504.475
19.835
532.159
15.965
551.375
15.249
591.365
5.296
1480.464
15.107
1496.636
15.15
1526.832
14.883
1545.842
13.808
1562.387
11.159
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data

Opportunities

Eliminate render-blocking resources — Potential savings of 0 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. W3school.com should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
URL Transfer Size (Bytes) Potential Savings (Ms)
http://w3school.com/CSS/index.css
6631
70
Defer offscreen images
Time to Interactive can be slowed down by resources on the page. W3school.com should consider lazy-loading offscreen and hidden images.
Minify CSS
Cascading Style Sheets (CSS) files can contribute to network payload sizes. W3school.com should consider minifying CSS files.
Minify JavaScript
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. W3school.com should consider minifying JS files.
Remove unused CSS
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. W3school.com should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
Remove unused JavaScript
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
Enable text compression — Potential savings of 175 KiB
Text-based resources should be served with compression, such as gzip, deflate or brotli.
URL Transfer Size (Bytes) Potential Savings (Bytes)
http://w3school.com/
232129
173961
http://w3school.com/CSS/index.css
6288
5146
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Initial server response time was short — Root document took 220 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
URL Time Spent (Ms)
http://w3school.com/
219.34
Avoid multiple page redirects
Redirects can cause additional delays before the page can begin loading. W3school.com should avoid multiple or unnecessary page redirects.
Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. W3school.com should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.
Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.
Avoid serving legacy JavaScript to modern browsers
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.
Preload Largest Contentful Paint image
It is recommended to preload images used by LCP elements, to improve LCP time.

Diagnostics

Avoids enormous network payloads — Total size was 1,635 KiB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
http://w3school.com/
232477
http://w3school.com/image3/57edited.jpg
179307
http://w3school.com/image3/Jerusalem_Home_Page.jpg
160750
http://w3school.com/image3/Photos_homepage/three_Jews_revised.png
54109
http://w3school.com/image3/83c.jpg
50801
http://w3school.com/image3/Photos_homepage/Israel_is_born.jpg
44580
http://w3school.com/image3/Photos_homepage/front_view_of_vatican.png
42338
http://w3school.com/image3/Photos_homepage/china_map.jpg
42158
http://w3school.com/image3/104c.jpg
39698
http://w3school.com/image3/Photos_homepage/street_in_front_of_bus_station.jpg
36002
Avoid chaining critical requests — 3 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. W3school.com should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
JavaScript execution time — 0.0 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
http://w3school.com/
276.603
3.041
0.913
Unattributable
60.679
1.068
0.151
Minimizes main-thread work — 0.3 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Style & Layout
152.925
Rendering
92.544
Other
75.76
Parse HTML & CSS
12.713
Script Evaluation
9.544
Script Parsing & Compilation
2.436
All text remains visible during webfont loads
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
Keep request counts low and transfer sizes small — 54 requests • 1,635 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
54
1674414
Image
47
1429760
Document
1
232477
Stylesheet
1
6631
Script
5
5546
Media
0
0
Font
0
0
Other
0
0
Third-party
7
8193
Minimize third-party usage
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Lazy load third-party resources with facades
Consider replacing third-party embeds with a facade until they are required (use lazy loading).
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
Avoid large layout shifts
Below is a list of all DOM elements that contribute to the CLS of the page.
Uses passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
Avoid long main-thread tasks — 1 long task found
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.
URL Start Time (Ms) Duration (Ms)
http://w3school.com/
393
51
Avoid non-composited animations
It is recommended to avoid non-composited animations which are often janky and increase CLS.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Opportunities

Properly size images — Potential savings of 270 KiB
Images can slow down the page's load time. W3school.com should consider serving more appropriate-sized images.
URL Resource Size (Bytes) Potential Savings (Bytes)
http://w3school.com/image3/57edited.jpg
178958
107465
http://w3school.com/image3/Jerusalem_Home_Page.jpg
160401
92767
http://w3school.com/image3/83c.jpg
50454
42508
http://w3school.com/image3/104c.jpg
39351
27110
http://w3school.com/image3/132.jpg
28608
6450
Efficiently encode images — Potential savings of 691 KiB
Unoptimized images can consume more cellular data than what is necessary.
URL Resource Size (Bytes) Potential Savings (Bytes)
http://w3school.com/image3/Jerusalem_Home_Page.jpg
160401
114519
http://w3school.com/image3/57edited.jpg
178958
107499
http://w3school.com/image3/Photos_homepage/Israel_is_born.jpg
44233
31774
http://w3school.com/image3/Photos_homepage/china_map.jpg
41811
25838
http://w3school.com/image3/Photos_homepage/Vatican_1_revised.jpg
33305
21929
http://w3school.com/image3/Photos_homepage/Backside_Mt_of_Olives.jpg
34310
20332
http://w3school.com/image3/Photos_homepage/street_in_front_of_bus_station.jpg
35655
20280
http://w3school.com/image3/Photos_homepage/church_small.jpg
30108
19618
http://w3school.com/image3/Photos_homepage/backround_L.jpg
24289
19358
http://w3school.com/image3/Photos_homepage/atomic_blast.jpg
29516
19083
http://w3school.com/image3/Photos_homepage/126d_revised.jpg
35461
18328
http://w3school.com/image3/Photos_homepage/Antichrist_killed_revised.jpg
29573
17814
http://w3school.com/image3/Photos_homepage/fighter_planes.jpg
24418
17503
http://w3school.com/image3/Photos_homepage/missed_the_rapture.jpg
23801
16428
http://w3school.com/image3/Photos_homepage/earthquake.jpg
25426
15727
http://w3school.com/image3/Photos_homepage/eastern_gate.jpg
27038
15589
http://w3school.com/image3/Photos_homepage/Are_you_ready_to_meet_Jesus1.jpg
24232
15504
http://w3school.com/image3/Photos_homepage/Rapture.jpg
27485
15041
http://w3school.com/image3/Photos_homepage/jews_fleeing.jpg
19019
14451
http://w3school.com/image3/Photos_homepage/bearded_man.jpg
22143
14402
http://w3school.com/image3/Photos_homepage/many_soldiers_resized.jpg
25449
14328
http://w3school.com/image3/Photos_homepage/terrified_man.jpg
22155
14033
http://w3school.com/image3/Photos_homepage/unexpected.jpg
22125
13380
http://w3school.com/image3/Photos_homepage/Mount_Megiddo.jpg
24689
13273
http://w3school.com/image3/Photos_homepage/pray_2_revised.jpg
20281
12914
http://w3school.com/image3/Photos_homepage/Locust1.jpg
19572
12623
http://w3school.com/image3/Photos_homepage/Israeli_flag.jpg
20429
12159
http://w3school.com/image3/Photos_homepage/666revised.jpg
19479
12054
http://w3school.com/image3/Photos_homepage/May_14_1948_color.jpg
22885
11227
http://w3school.com/image3/Photos_homepage/whats_going_on.jpg
18039
10036
http://w3school.com/image3/Photos_homepage/praying_hands.jpg
12747
7969
http://w3school.com/image3/Photos_homepage/cross_blood_stained_revised.jpg
13194
7751
http://w3school.com/image3/Photos_homepage/Baptism_In_India_small.jpg
13045
5198
Serve images in next-gen formats — Potential savings of 913 KiB
Image formats like PNG and JPEG have poor compression when compared to other next-gen formats, such as JPEG 200, JPEG XR and WebP.
URL Resource Size (Bytes) Potential Savings (Bytes)
http://w3school.com/image3/57edited.jpg
178958
129746
http://w3school.com/image3/Jerusalem_Home_Page.jpg
160401
129153
http://w3school.com/image3/Photos_homepage/three_Jews_revised.png
53763
46157
http://w3school.com/image3/Photos_homepage/front_view_of_vatican.png
41992
35954
http://w3school.com/image3/Photos_homepage/Israel_is_born.jpg
44233
35227
http://w3school.com/image3/Photos_homepage/china_map.jpg
41811
31677
http://w3school.com/image3/Photos_homepage/Vatican_1_revised.jpg
33305
25703
http://w3school.com/image3/Photos_homepage/street_in_front_of_bus_station.jpg
35655
25039
http://w3school.com/image3/Photos_homepage/Backside_Mt_of_Olives.jpg
34310
24394
http://w3school.com/image3/Photos_homepage/church_small.jpg
30108
23618
http://w3school.com/image3/Photos_homepage/Antichrist_killed_revised.jpg
29573
23283
http://w3school.com/image3/Photos_homepage/atomic_blast.jpg
29516
22794
http://w3school.com/image3/Photos_homepage/backround_L.jpg
24289
21173
http://w3school.com/image3/Photos_homepage/126d_revised.jpg
35461
21129
http://w3school.com/image3/Photos_homepage/fighter_planes.jpg
24418
20932
http://w3school.com/image3/Photos_homepage/missed_the_rapture.jpg
23801
19331
http://w3school.com/image3/Photos_homepage/eastern_gate.jpg
27038
19200
http://w3school.com/image3/Photos_homepage/earthquake.jpg
25426
19076
http://w3school.com/image3/Photos_homepage/Are_you_ready_to_meet_Jesus1.jpg
24232
19058
http://w3school.com/image3/Photos_homepage/Rapture.jpg
27485
18865
http://w3school.com/image3/Photos_homepage/bearded_man.jpg
22143
17649
http://w3school.com/image3/Photos_homepage/terrified_man.jpg
22155
17353
http://w3school.com/image3/Photos_homepage/many_soldiers_resized.jpg
25449
17231
http://w3school.com/image3/Photos_homepage/unexpected.jpg
22125
16729
http://w3school.com/image3/Photos_homepage/Mount_Megiddo.jpg
24689
16471
http://w3school.com/image3/Photos_homepage/pray_2_revised.jpg
20281
16329
http://w3school.com/image3/Photos_homepage/Israeli_flag.jpg
20429
16199
http://w3school.com/image3/Photos_homepage/May_14_1948_color.jpg
22885
15715
http://w3school.com/image3/Photos_homepage/Locust1.jpg
19572
15576
http://w3school.com/image3/Photos_homepage/666revised.jpg
19479
15243
http://w3school.com/image3/Photos_homepage/jews_fleeing.jpg
19019
15133
http://w3school.com/image3/Photos_homepage/whats_going_on.jpg
18039
13289
http://w3school.com/image3/Photos_homepage/cross_blood_stained_revised.jpg
13194
10460
http://w3school.com/image3/Photos_homepage/praying_hands.jpg
12747
10403
http://w3school.com/image3/Photos_homepage/guillotine_2_small.png
11163
9409

Diagnostics

Serve static assets with an efficient cache policy — 51 resources found
W3school.com can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
http://w3school.com/image3/57edited.jpg
0
179307
http://w3school.com/image3/Jerusalem_Home_Page.jpg
0
160750
http://w3school.com/image3/Photos_homepage/three_Jews_revised.png
0
54109
http://w3school.com/image3/83c.jpg
0
50801
http://w3school.com/image3/Photos_homepage/Israel_is_born.jpg
0
44580
http://w3school.com/image3/Photos_homepage/front_view_of_vatican.png
0
42338
http://w3school.com/image3/Photos_homepage/china_map.jpg
0
42158
http://w3school.com/image3/104c.jpg
0
39698
http://w3school.com/image3/Photos_homepage/street_in_front_of_bus_station.jpg
0
36002
http://w3school.com/image3/Photos_homepage/126d_revised.jpg
0
35808
http://w3school.com/image3/Photos_homepage/Backside_Mt_of_Olives.jpg
0
34657
http://w3school.com/image3/Photos_homepage/Vatican_1_revised.jpg
0
33651
http://w3school.com/image3/Photos_homepage/church_small.jpg
0
30455
http://w3school.com/image3/Photos_homepage/Antichrist_killed_revised.jpg
0
29920
http://w3school.com/image3/Photos_homepage/atomic_blast.jpg
0
29863
http://w3school.com/image3/132.jpg
0
28955
http://w3school.com/image3/Photos_homepage/Rapture.jpg
0
27832
http://w3school.com/image3/Photos_homepage/eastern_gate.jpg
0
27385
http://w3school.com/image3/Photos_homepage/many_soldiers_resized.jpg
0
25796
http://w3school.com/image3/Photos_homepage/earthquake.jpg
0
25773
http://w3school.com/image3/Photos_homepage/Mount_Megiddo.jpg
0
25036
http://w3school.com/image3/Photos_homepage/fighter_planes.jpg
0
24765
http://w3school.com/image3/Photos_homepage/backround_L.jpg
0
24636
http://w3school.com/image3/Photos_homepage/Are_you_ready_to_meet_Jesus1.jpg
0
24579
http://w3school.com/image3/Photos_homepage/missed_the_rapture.jpg
0
24147
http://w3school.com/image3/Photos_homepage/May_14_1948_color.jpg
0
23232
http://w3school.com/image3/Photos_homepage/terrified_man.jpg
0
22502
http://w3school.com/image3/Photos_homepage/bearded_man.jpg
0
22490
http://w3school.com/image3/Photos_homepage/unexpected.jpg
0
22472
http://w3school.com/image3/Photos_homepage/Israeli_flag.jpg
0
20776
http://w3school.com/image3/Photos_homepage/pray_2_revised.jpg
0
20628
http://w3school.com/image3/Photos_homepage/Locust1.jpg
0
19919
http://w3school.com/image3/Photos_homepage/666revised.jpg
0
19826
http://w3school.com/image3/Photos_homepage/jews_fleeing.jpg
0
19366
http://w3school.com/image3/Photos_homepage/whats_going_on.jpg
0
18386
http://w3school.com/image3/126d.jpg
0
14715
http://w3school.com/image3/banner-bible-almanac2.jpg
0
14309
http://w3school.com/image3/Photos_homepage/cross_blood_stained_revised.jpg
0
13541
http://w3school.com/image3/Photos_homepage/Baptism_In_India_small.jpg
0
13392
http://w3school.com/image3/Photos_homepage/praying_hands.jpg
0
13094
http://w3school.com/image3/Photos_homepage/guillotine_2_small.png
0
11508
http://w3school.com/image3/Banner-poem.jpg
0
11341
http://w3school.com/email4.gif
0
10651
http://w3school.com/image3/banner-blog.jpg
0
9616
http://w3school.com/CSS/index.css
0
6631
http://w3school.com/image3/Photos_homepage/darkness.jpg
0
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https://pulse.w3counter.com/pulse.js?id=72029
0
1374
http://pulse.w3counter.com/ping.js?id=72029&activity=reading&userAgent=Mozilla%2F5.0%20(Macintosh%3B%20Intel%20Mac%20OS%20X%2010_14_6)%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F90.0.4420.0%20Safari%2F537.36%20Chrome-Lighthouse&webpageName=Mega%20site%20of%20Bible%20Information&ref=&url=http%3A%2F%2Fw3school.com%2F&rand=631
0
604
http://www.supercounters.com/fc.php?id=1280418&v=1&w=0&ua=Mozilla%2F5.0%20(Macintosh%3B%20Intel%20Mac%20OS%20X%2010_14_6)%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F90.0.4420.0%20Safari%2F537.36%20Chrome-Lighthouse&ref=&url=http%3A%2F%2Fw3school.com%2F&sw=800&sh=600&rand=73&style=11&m=9
0
291
http://widget.supercounters.com/hit.js
14400000
1997
http://widget.supercounters.com/images/11.gif
14400000
1310
Avoid an excessive DOM size — 2,771 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
2771
Maximum DOM Depth
b
10
Maximum Child Elements
387
Avoid `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.
Source
Image elements do not have explicit `width` and `height`
Reduce layout shifts and improve CLS by setting explicit width and height properties on image elements.
URL Failing Elements
https://www.w3counter.com/tracker.php?id=72029&userAgent=Mozilla%2F5.0%20(Macintosh%3B%20Intel%20Mac%20OS%20X%2010_14_6)%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F90.0.4420.0%20Safari%2F537.36%20Chrome-Lighthouse&webpageName=Mega%20site%20of%20Bible%20Information&ref=&url=http%3A%2F%2Fw3school.com%2F&width=800&height=600&rand=888
63

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of w3school.com. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
`[id]` attributes on active, focusable elements are unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
Heading elements appear in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`[aria-*]` attributes match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
`button`, `link`, and `menuitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
ARIA `meter` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `progressbar` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
ARIA `tooltip` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `treeitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.
ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Names and labels

Buttons have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
`<frame>` or `<iframe>` elements have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
Form elements have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
`<object>` elements have `[alt]` text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Internationalization and localization

`<html>` element has a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
W3school.com may provide assistance to deaf or hearing-impaired users with captions on videos.

Contrast

Background and foreground colors do not have a sufficient contrast ratio.
Many (if not most) users find low-contrast text difficult or impossible to read.
Failing Elements

Names and labels

Image elements do not have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Failing Elements
img
img
img
Links do not have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
80

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that w3school.com should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids front-end JavaScript libraries with known security vulnerabilities
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Serves images with appropriate resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Page has the HTML doctype
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.
Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Avoids `unload` event listeners
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.
Avoids Application Cache
Application cache is deprecated and is no longer recommended.
Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.
No browser errors logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.
Page has valid source maps
Consider deploying source maps for added benefits such as the ability to debug while in production.
No issues in the `Issues` panel in Chrome Devtools
There may be unresolved issues logged to Chrome Devtools.

Audits

Does not use HTTPS — 51 insecure requests found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL Request Resolution
http://w3school.com/
Allowed
http://w3school.com/CSS/index.css
Allowed
http://widget.supercounters.com/hit.js
Allowed
http://w3school.com/image3/Banner-poem.jpg
Allowed
http://w3school.com/image3/banner-blog.jpg
Allowed
http://w3school.com/image3/banner-bible-almanac2.jpg
Allowed
http://w3school.com/image3/Jerusalem_Home_Page.jpg
Allowed
http://w3school.com/image3/132.jpg
Allowed
http://w3school.com/image3/104c.jpg
Allowed
http://w3school.com/image3/126d.jpg
Allowed
http://w3school.com/image3/83c.jpg
Allowed
http://w3school.com/image3/Photos_homepage/bearded_man.jpg
Allowed
http://w3school.com/image3/Photos_homepage/pray_2_revised.jpg
Allowed
http://w3school.com/image3/Photos_homepage/whats_going_on.jpg
Allowed
http://w3school.com/image3/Photos_homepage/Israel_is_born.jpg
Allowed
http://w3school.com/image3/Photos_homepage/May_14_1948_color.jpg
Allowed
http://w3school.com/image3/Photos_homepage/church_small.jpg
Allowed
http://w3school.com/image3/Photos_homepage/atomic_blast.jpg
Allowed
http://w3school.com/image3/Photos_homepage/china_map.jpg
Allowed
http://w3school.com/image3/Photos_homepage/praying_hands.jpg
Allowed
http://w3school.com/image3/Photos_homepage/Rapture.jpg
Allowed
http://w3school.com/image3/Photos_homepage/missed_the_rapture.jpg
Allowed
http://w3school.com/image3/Photos_homepage/fighter_planes.jpg
Allowed
http://w3school.com/image3/Photos_homepage/Israeli_flag.jpg
Allowed
http://w3school.com/image3/Photos_homepage/Vatican_1_revised.jpg
Allowed
http://w3school.com/image3/Photos_homepage/three_Jews_revised.png
Allowed
http://w3school.com/image3/Photos_homepage/unexpected.jpg
Allowed
http://w3school.com/image3/Photos_homepage/Antichrist_killed_revised.jpg
Allowed
http://w3school.com/image3/Photos_homepage/126d_revised.jpg
Allowed
http://w3school.com/image3/Photos_homepage/jews_fleeing.jpg
Allowed
http://w3school.com/image3/Photos_homepage/666revised.jpg
Allowed
http://w3school.com/image3/Photos_homepage/guillotine_2_small.png
Allowed
http://w3school.com/image3/Photos_homepage/front_view_of_vatican.png
Allowed
http://w3school.com/image3/Photos_homepage/Locust1.jpg
Allowed
http://w3school.com/image3/Photos_homepage/darkness.jpg
Allowed
http://w3school.com/image3/Photos_homepage/many_soldiers_resized.jpg
Allowed
http://w3school.com/image3/Photos_homepage/street_in_front_of_bus_station.jpg
Allowed
http://w3school.com/image3/Photos_homepage/cross_blood_stained_revised.jpg
Allowed
http://w3school.com/image3/Photos_homepage/terrified_man.jpg
Allowed
http://w3school.com/image3/Photos_homepage/Backside_Mt_of_Olives.jpg
Allowed
http://w3school.com/image3/Photos_homepage/Mount_Megiddo.jpg
Allowed
http://w3school.com/image3/Photos_homepage/earthquake.jpg
Allowed
http://w3school.com/image3/Photos_homepage/eastern_gate.jpg
Allowed
http://w3school.com/image3/Photos_homepage/Are_you_ready_to_meet_Jesus1.jpg
Allowed
http://w3school.com/image3/Photos_homepage/Baptism_In_India_small.jpg
Allowed
http://w3school.com/image3/57edited.jpg
Allowed
http://w3school.com/email4.gif
Allowed
http://www.supercounters.com/fc.php?id=1280418&v=1&w=0&ua=Mozilla%2F5.0%20(Macintosh%3B%20Intel%20Mac%20OS%20X%2010_14_6)%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F90.0.4420.0%20Safari%2F537.36%20Chrome-Lighthouse&ref=&url=http%3A%2F%2Fw3school.com%2F&sw=800&sh=600&rand=73&style=11&m=9
Allowed
http://w3school.com/image3/Photos_homepage/backround_L.jpg
Allowed
http://widget.supercounters.com/images/11.gif
Allowed
http://pulse.w3counter.com/ping.js?id=72029&activity=reading&userAgent=Mozilla%2F5.0%20(Macintosh%3B%20Intel%20Mac%20OS%20X%2010_14_6)%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F90.0.4420.0%20Safari%2F537.36%20Chrome-Lighthouse&webpageName=Mega%20site%20of%20Bible%20Information&ref=&url=http%3A%2F%2Fw3school.com%2F&rand=631
Allowed
Links to cross-origin destinations are unsafe
Improve performance and prevent security vulnerabilities by adding rel="noopener" and rel="noreferrer" to external links.

Audits

Displays images with incorrect aspect ratio
Ensure that image display dimensions match their natural aspect ratio.
URL Aspect Ratio (Displayed) Aspect Ratio (Actual)
http://w3school.com/image3/57edited.jpg
590 x 200 (2.95)
959 x 308 (3.11)
http://w3school.com/image3/83c.jpg
210 x 163 (1.29)
566 x 384 (1.47)
http://w3school.com/image3/104c.jpg
230 x 161 (1.43)
480 x 248 (1.94)
http://w3school.com/image3/132.jpg
560 x 229 (2.45)
723 x 229 (3.16)
http://w3school.com/image3/126d.jpg
208 x 159 (1.31)
208 x 150 (1.39)
http://w3school.com/email4.gif
116 x 116 (1.00)
91 x 117 (0.78)
50

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for w3school.com. This includes optimizations such as providing meta data.

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.
robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Mobile Friendly

Document uses legible font sizes
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Tap targets are sized appropriately
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.

Mobile Friendly

Does not have a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of w3school.com on mobile screens.

Content Best Practices

Document does not have a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.
Links do not have descriptive text — 4 links found
Make use of descriptive link text to assist search engines in understanding the content.
Image elements do not have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Failing Elements
img
img
img

Crawling and Indexing

Links are not crawlable
Ensure that the 'href' attribute of anchor elements links to the appropriate destination. This allows for more pages of the site to be discovered by search engines.

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
0

Progressive Web App

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of w3school.com. This includes details about web app manifests.

PWA Optimized

Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.

Installable

Web app manifest or service worker do not meet the installability requirements — 1 reason
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.
Failure reason
No manifest was fetched

PWA Optimized

Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.
Does not redirect HTTP traffic to HTTPS
It is advised to redirect all HTTP traffic to HTTPS, in order to enable secure web features for all users.
Is not configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Does not set a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Does not have a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of w3school.com on mobile screens.
Does not provide a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.
Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Avg. (All Categories) 54
Performance 87
Accessibility 70
Best Practices 73
SEO 42
Progressive Web App 0
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
URL: http://w3school.com/
Updated: 24th May, 2021

3.66 seconds
First Contentful Paint (FCP)
19%
48%
33%

0.27 seconds
First Input Delay (FID)
13%
77%
10%

Simulate loading on mobile
87

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for w3school.com. This includes details about optimizing page load times which can result in a better user experience.

Metrics

Speed Index — 2.8 s
The time taken for the page contents to be visibly populated.
Time to Interactive — 2.8 s
The time taken for the page to become fully interactive.
Total Blocking Time — 0 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).
Cumulative Layout Shift — 0
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Other

First CPU Idle — 2.8 s
The time taken for the page's main thread to be quiet enough to handle input.
Max Potential First Input Delay — 20 ms
Users could experience a delay when interacting with the page.
Estimated Input Latency — 10 ms
The time taken for the page to respond to user input (during the busiest 5 second window of page load). Users are likely to perceive w3school.com as laggy when the latency is higher than 0.05 seconds.
Network Requests
Below is a list of network requests that were made during page load.
URL Protocol Start Time (Ms) End Time (Ms) Transfer Size (Bytes) Resource Size (Bytes) Status Code MIME Type Resource Type
http://w3school.com/
http/1.1
0
163.93599996809
232477
232129
200
text/html
Document
http://w3school.com/CSS/index.css
http/1.1
179.86699996982
370.46399991959
6632
6288
200
text/css
Stylesheet
http://widget.supercounters.com/hit.js
http/1.1
180.09499995969
195.86600002367
1999
3798
200
application/javascript
Script
https://www.w3counter.com/tracker.js?id=72029
h2
180.31299998984
298.90900000464
1282
1913
200
application/javascript
Script
http://w3school.com/image3/Banner-poem.jpg
http/1.1
180.86700001732
381.41399994493
11341
10994
200
image/jpeg
Image
http://w3school.com/image3/banner-blog.jpg
http/1.1
180.98699999973
327.21000001766
9616
9270
200
image/jpeg
Image
http://w3school.com/image3/banner-bible-almanac2.jpg
http/1.1
181.23400001787
616.87999998685
14310
13963
200
image/jpeg
Image
http://w3school.com/image3/Jerusalem_Home_Page.jpg
http/1.1
181.91299994942
304.78399991989
160749
160401
200
image/jpeg
Image
http://w3school.com/image3/132.jpg
http/1.1
183.9279999258
661.38399997726
28955
28608
200
image/jpeg
Image
http://w3school.com/image3/104c.jpg
http/1.1
184.08499995712
409.80199992191
39698
39351
200
image/jpeg
Image
http://w3school.com/image3/126d.jpg
http/1.1
184.27299999166
366.75899999682
14715
14368
200
image/jpeg
Image
http://w3school.com/image3/83c.jpg
http/1.1
184.5129999565
424.72699994687
50801
50454
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/bearded_man.jpg
http/1.1
184.68599999323
293.35699998774
22490
22143
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/pray_2_revised.jpg
http/1.1
184.78999997023
406.25599992927
20628
20281
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/whats_going_on.jpg
http/1.1
184.91900002118
345.72999994271
18386
18039
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/Israel_is_born.jpg
http/1.1
185.05799991544
420.40599999018
44580
44233
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/May_14_1948_color.jpg
http/1.1
185.2240000153
626.57999992371
23232
22885
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/church_small.jpg
http/1.1
185.47299993224
410.81999999005
30455
30108
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/atomic_blast.jpg
http/1.1
185.76399993617
626.27399992198
29863
29516
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/china_map.jpg
http/1.1
186.0699999379
356.71700001694
42158
41811
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/praying_hands.jpg
http/1.1
186.2620000029
621.99199991301
13094
12747
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/Rapture.jpg
http/1.1
186.43999996129
611.93199991249
27832
27485
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/missed_the_rapture.jpg
http/1.1
188.82999999914
625.10299996939
24148
23801
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/fighter_planes.jpg
http/1.1
188.95500001963
636.08099997509
24765
24418
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/Israeli_flag.jpg
http/1.1
189.20799996704
607.88899997715
20776
20429
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/Vatican_1_revised.jpg
http/1.1
189.38599992543
404.13599996828
33652
33305
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/three_Jews_revised.png
http/1.1
189.59099997301
421.94799997378
54109
53763
200
image/png
Image
http://w3school.com/image3/Photos_homepage/unexpected.jpg
http/1.1
189.79500001296
601.76200000569
22472
22125
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/Antichrist_killed_revised.jpg
http/1.1
189.99999994412
410.48299998511
29920
29573
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/126d_revised.jpg
http/1.1
190.14299998526
407.0579999825
35808
35461
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/jews_fleeing.jpg
http/1.1
190.28099998832
389.67399997637
19366
19019
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/666revised.jpg
http/1.1
190.40600000881
404.63999996427
19826
19479
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/guillotine_2_small.png
http/1.1
190.71799993981
613.8899999205
11509
11163
200
image/png
Image
http://w3school.com/image3/Photos_homepage/front_view_of_vatican.png
http/1.1
190.93099993188
411.16599994712
42338
41992
200
image/png
Image
http://w3school.com/image3/Photos_homepage/Locust1.jpg
http/1.1
191.06400001328
395.25900001172
19919
19572
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/darkness.jpg
http/1.1
191.76399998832
374.33000002056
2348
2003
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/many_soldiers_resized.jpg
http/1.1
191.95200002287
394.66799993534
25796
25449
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/street_in_front_of_bus_station.jpg
http/1.1
192.20799999312
417.6570000127
36002
35655
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/cross_blood_stained_revised.jpg
http/1.1
192.39699991886
608.55699994136
13541
13194
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/terrified_man.jpg
http/1.1
196.63899997249
350.75500002131
22502
22155
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/Backside_Mt_of_Olives.jpg
http/1.1
196.81899994612
423.06699999608
34657
34310
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/Mount_Megiddo.jpg
http/1.1
197.08099996205
342.2899999423
25036
24689
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/earthquake.jpg
http/1.1
197.81199994031
405.22499999497
25773
25426
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/eastern_gate.jpg
http/1.1
198.2919999864
410.19600001164
27385
27038
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/Are_you_ready_to_meet_Jesus1.jpg
http/1.1
199.19399998616
386.52399997227
24579
24232
200
image/jpeg
Image
http://w3school.com/image3/Photos_homepage/Baptism_In_India_small.jpg
http/1.1
200.5750000244
633.99499992374
13392
13045
200
image/jpeg
Image
http://w3school.com/image3/57edited.jpg
http/1.1
200.77300001867
510.45099995099
179307
178958
200
image/jpeg
Image
http://w3school.com/email4.gif
http/1.1
200.98199998029
336.54899999965
10651
10305
200
image/gif
Image
http://www.supercounters.com/fc.php?id=1280418&v=1&w=0&ua=Mozilla%2F5.0%20(Linux%3B%20Android%207.0%3B%20Moto%20G%20(4))%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F90.0.4420.0%20Mobile%20Safari%2F537.36%20Chrome-Lighthouse&ref=&url=http%3A%2F%2Fw3school.com%2F&sw=360&sh=640&rand=17&style=11&m=9
http/1.1
374.05799992848
407.33399998862
291
40
200
application/x-javascript
Script
https://pulse.w3counter.com/pulse.js?id=72029
h2
375.06200000644
460.50599997398
1349
1871
200
application/javascript
Script
https://www.w3counter.com/tracker.php?id=72029&userAgent=Mozilla%2F5.0%20(Linux%3B%20Android%207.0%3B%20Moto%20G%20(4))%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F90.0.4420.0%20Mobile%20Safari%2F537.36%20Chrome-Lighthouse&webpageName=Mega%20site%20of%20Bible%20Information&ref=&url=http%3A%2F%2Fw3school.com%2F&width=360&height=640&rand=20
h2
375.46599993948
520.66399995238
1335
328
200
image/png
Image
http://w3school.com/image3/Photos_homepage/backround_L.jpg
http/1.1
387.45699997526
427.91899992153
24635
24289
200
image/jpeg
Image
http://widget.supercounters.com/images/11.gif
http/1.1
587.07499993034
617.87199997343
1289
532
200
image/gif
Image
http://pulse.w3counter.com/ping.js?id=72029&activity=reading&userAgent=Mozilla%2F5.0%20(Linux%3B%20Android%207.0%3B%20Moto%20G%20(4))%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F90.0.4420.0%20Mobile%20Safari%2F537.36%20Chrome-Lighthouse&webpageName=Mega%20site%20of%20Bible%20Information&ref=&url=http%3A%2F%2Fw3school.com%2F&rand=603
http/1.1
588.30099995248
661.08899994288
618
0
200
application/javascript
Script
Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
196.347
8.121
210.708
5.2
216.501
5.46
400.931
36.305
437.249
145.503
597.434
16.252
647.338
6.679
664.328
11.463
681.579
5.314
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data

Opportunities

Eliminate render-blocking resources — Potential savings of 0 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. W3school.com should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
URL Transfer Size (Bytes) Potential Savings (Ms)
http://w3school.com/CSS/index.css
6632
180
Properly size images
Images can slow down the page's load time. W3school.com should consider serving more appropriate-sized images.
Defer offscreen images
Time to Interactive can be slowed down by resources on the page. W3school.com should consider lazy-loading offscreen and hidden images.
Minify CSS
Cascading Style Sheets (CSS) files can contribute to network payload sizes. W3school.com should consider minifying CSS files.
Minify JavaScript
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. W3school.com should consider minifying JS files.
Remove unused CSS
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. W3school.com should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
Remove unused JavaScript
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Initial server response time was short — Root document took 160 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
URL Time Spent (Ms)
http://w3school.com/
164.934
Avoid multiple page redirects
Redirects can cause additional delays before the page can begin loading. W3school.com should avoid multiple or unnecessary page redirects.
Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. W3school.com should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.
Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.
Avoid serving legacy JavaScript to modern browsers
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.
Preload Largest Contentful Paint image
It is recommended to preload images used by LCP elements, to improve LCP time.

Diagnostics

Avoids enormous network payloads — Total size was 1,635 KiB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
http://w3school.com/
232477
http://w3school.com/image3/57edited.jpg
179307
http://w3school.com/image3/Jerusalem_Home_Page.jpg
160749
http://w3school.com/image3/Photos_homepage/three_Jews_revised.png
54109
http://w3school.com/image3/83c.jpg
50801
http://w3school.com/image3/Photos_homepage/Israel_is_born.jpg
44580
http://w3school.com/image3/Photos_homepage/front_view_of_vatican.png
42338
http://w3school.com/image3/Photos_homepage/china_map.jpg
42158
http://w3school.com/image3/104c.jpg
39698
http://w3school.com/image3/Photos_homepage/street_in_front_of_bus_station.jpg
36002
Avoid chaining critical requests — 3 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. W3school.com should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
JavaScript execution time — 0.0 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
http://w3school.com/
928.844
18.052
3.884
Unattributable
232.212
3.952
0.56
Minimizes main-thread work — 1.2 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Style & Layout
689.176
Other
265.276
Rendering
128.232
Parse HTML & CSS
57.512
Script Evaluation
38.256
Script Parsing & Compilation
8.592
All text remains visible during webfont loads
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
Keep request counts low and transfer sizes small — 54 requests • 1,635 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
54
1674387
Image
47
1429739
Document
1
232477
Stylesheet
1
6632
Script
5
5539
Media
0
0
Font
0
0
Other
0
0
Third-party
7
8163
Minimize third-party usage
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Lazy load third-party resources with facades
Consider replacing third-party embeds with a facade until they are required (use lazy loading).
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
Avoid large layout shifts
Below is a list of all DOM elements that contribute to the CLS of the page.
Uses passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
Avoid long main-thread tasks — 2 long tasks found
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.
URL Start Time (Ms) Duration (Ms)
http://w3school.com/
1839
291
http://widget.supercounters.com/hit.js
2619
145
Avoid non-composited animations
It is recommended to avoid non-composited animations which are often janky and increase CLS.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Metrics

First Contentful Paint — 2.8 s
The time taken for the first image or text on the page to be rendered.
Largest Contentful Paint — 3.5 s
The timing of the largest text or image that is painted.

Other

First Meaningful Paint — 2.8 s
The time taken for the primary content of the page to be rendered.
First Contentful Paint (3G) — 5614 ms
The time taken for the first image or text on the page to be rendered while on a 3G network.

Opportunities

Efficiently encode images — Potential savings of 691 KiB
Unoptimized images can consume more cellular data than what is necessary.
URL Resource Size (Bytes) Potential Savings (Bytes)
http://w3school.com/image3/Jerusalem_Home_Page.jpg
160401
114519
http://w3school.com/image3/57edited.jpg
178958
107499
http://w3school.com/image3/Photos_homepage/Israel_is_born.jpg
44233
31774
http://w3school.com/image3/Photos_homepage/china_map.jpg
41811
25838
http://w3school.com/image3/Photos_homepage/Vatican_1_revised.jpg
33305
21929
http://w3school.com/image3/Photos_homepage/Backside_Mt_of_Olives.jpg
34310
20332
http://w3school.com/image3/Photos_homepage/street_in_front_of_bus_station.jpg
35655
20280
http://w3school.com/image3/Photos_homepage/church_small.jpg
30108
19618
http://w3school.com/image3/Photos_homepage/backround_L.jpg
24289
19358
http://w3school.com/image3/Photos_homepage/atomic_blast.jpg
29516
19083
http://w3school.com/image3/Photos_homepage/126d_revised.jpg
35461
18328
http://w3school.com/image3/Photos_homepage/Antichrist_killed_revised.jpg
29573
17814
http://w3school.com/image3/Photos_homepage/fighter_planes.jpg
24418
17503
http://w3school.com/image3/Photos_homepage/missed_the_rapture.jpg
23801
16428
http://w3school.com/image3/Photos_homepage/earthquake.jpg
25426
15727
http://w3school.com/image3/Photos_homepage/eastern_gate.jpg
27038
15589
http://w3school.com/image3/Photos_homepage/Are_you_ready_to_meet_Jesus1.jpg
24232
15504
http://w3school.com/image3/Photos_homepage/Rapture.jpg
27485
15041
http://w3school.com/image3/Photos_homepage/jews_fleeing.jpg
19019
14451
http://w3school.com/image3/Photos_homepage/bearded_man.jpg
22143
14402
http://w3school.com/image3/Photos_homepage/many_soldiers_resized.jpg
25449
14328
http://w3school.com/image3/Photos_homepage/terrified_man.jpg
22155
14033
http://w3school.com/image3/Photos_homepage/unexpected.jpg
22125
13380
http://w3school.com/image3/Photos_homepage/Mount_Megiddo.jpg
24689
13273
http://w3school.com/image3/Photos_homepage/pray_2_revised.jpg
20281
12914
http://w3school.com/image3/Photos_homepage/Locust1.jpg
19572
12623
http://w3school.com/image3/Photos_homepage/Israeli_flag.jpg
20429
12159
http://w3school.com/image3/Photos_homepage/666revised.jpg
19479
12054
http://w3school.com/image3/Photos_homepage/May_14_1948_color.jpg
22885
11227
http://w3school.com/image3/Photos_homepage/whats_going_on.jpg
18039
10036
http://w3school.com/image3/Photos_homepage/praying_hands.jpg
12747
7969
http://w3school.com/image3/Photos_homepage/cross_blood_stained_revised.jpg
13194
7751
http://w3school.com/image3/Photos_homepage/Baptism_In_India_small.jpg
13045
5198
Serve images in next-gen formats — Potential savings of 913 KiB
Image formats like PNG and JPEG have poor compression when compared to other next-gen formats, such as JPEG 200, JPEG XR and WebP.
URL Resource Size (Bytes) Potential Savings (Bytes)
http://w3school.com/image3/57edited.jpg
178958
129746
http://w3school.com/image3/Jerusalem_Home_Page.jpg
160401
129153
http://w3school.com/image3/Photos_homepage/three_Jews_revised.png
53763
46157
http://w3school.com/image3/Photos_homepage/front_view_of_vatican.png
41992
35954
http://w3school.com/image3/Photos_homepage/Israel_is_born.jpg
44233
35227
http://w3school.com/image3/Photos_homepage/china_map.jpg
41811
31677
http://w3school.com/image3/Photos_homepage/Vatican_1_revised.jpg
33305
25703
http://w3school.com/image3/Photos_homepage/street_in_front_of_bus_station.jpg
35655
25039
http://w3school.com/image3/Photos_homepage/Backside_Mt_of_Olives.jpg
34310
24394
http://w3school.com/image3/Photos_homepage/church_small.jpg
30108
23618
http://w3school.com/image3/Photos_homepage/Antichrist_killed_revised.jpg
29573
23283
http://w3school.com/image3/Photos_homepage/atomic_blast.jpg
29516
22794
http://w3school.com/image3/Photos_homepage/backround_L.jpg
24289
21173
http://w3school.com/image3/Photos_homepage/126d_revised.jpg
35461
21129
http://w3school.com/image3/Photos_homepage/fighter_planes.jpg
24418
20932
http://w3school.com/image3/Photos_homepage/missed_the_rapture.jpg
23801
19331
http://w3school.com/image3/Photos_homepage/eastern_gate.jpg
27038
19200
http://w3school.com/image3/Photos_homepage/earthquake.jpg
25426
19076
http://w3school.com/image3/Photos_homepage/Are_you_ready_to_meet_Jesus1.jpg
24232
19058
http://w3school.com/image3/Photos_homepage/Rapture.jpg
27485
18865
http://w3school.com/image3/Photos_homepage/bearded_man.jpg
22143
17649
http://w3school.com/image3/Photos_homepage/terrified_man.jpg
22155
17353
http://w3school.com/image3/Photos_homepage/many_soldiers_resized.jpg
25449
17231
http://w3school.com/image3/Photos_homepage/unexpected.jpg
22125
16729
http://w3school.com/image3/Photos_homepage/Mount_Megiddo.jpg
24689
16471
http://w3school.com/image3/Photos_homepage/pray_2_revised.jpg
20281
16329
http://w3school.com/image3/Photos_homepage/Israeli_flag.jpg
20429
16199
http://w3school.com/image3/Photos_homepage/May_14_1948_color.jpg
22885
15715
http://w3school.com/image3/Photos_homepage/Locust1.jpg
19572
15576
http://w3school.com/image3/Photos_homepage/666revised.jpg
19479
15243
http://w3school.com/image3/Photos_homepage/jews_fleeing.jpg
19019
15133
http://w3school.com/image3/Photos_homepage/whats_going_on.jpg
18039
13289
http://w3school.com/image3/Photos_homepage/cross_blood_stained_revised.jpg
13194
10460
http://w3school.com/image3/Photos_homepage/praying_hands.jpg
12747
10403
http://w3school.com/image3/Photos_homepage/guillotine_2_small.png
11163
9409
Enable text compression — Potential savings of 175 KiB
Text-based resources should be served with compression, such as gzip, deflate or brotli.
URL Transfer Size (Bytes) Potential Savings (Bytes)
http://w3school.com/
232129
173961
http://w3school.com/CSS/index.css
6288
5146

Diagnostics

Serve static assets with an efficient cache policy — 51 resources found
W3school.com can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
http://w3school.com/image3/57edited.jpg
0
179307
http://w3school.com/image3/Jerusalem_Home_Page.jpg
0
160749
http://w3school.com/image3/Photos_homepage/three_Jews_revised.png
0
54109
http://w3school.com/image3/83c.jpg
0
50801
http://w3school.com/image3/Photos_homepage/Israel_is_born.jpg
0
44580
http://w3school.com/image3/Photos_homepage/front_view_of_vatican.png
0
42338
http://w3school.com/image3/Photos_homepage/china_map.jpg
0
42158
http://w3school.com/image3/104c.jpg
0
39698
http://w3school.com/image3/Photos_homepage/street_in_front_of_bus_station.jpg
0
36002
http://w3school.com/image3/Photos_homepage/126d_revised.jpg
0
35808
http://w3school.com/image3/Photos_homepage/Backside_Mt_of_Olives.jpg
0
34657
http://w3school.com/image3/Photos_homepage/Vatican_1_revised.jpg
0
33652
http://w3school.com/image3/Photos_homepage/church_small.jpg
0
30455
http://w3school.com/image3/Photos_homepage/Antichrist_killed_revised.jpg
0
29920
http://w3school.com/image3/Photos_homepage/atomic_blast.jpg
0
29863
http://w3school.com/image3/132.jpg
0
28955
http://w3school.com/image3/Photos_homepage/Rapture.jpg
0
27832
http://w3school.com/image3/Photos_homepage/eastern_gate.jpg
0
27385
http://w3school.com/image3/Photos_homepage/many_soldiers_resized.jpg
0
25796
http://w3school.com/image3/Photos_homepage/earthquake.jpg
0
25773
http://w3school.com/image3/Photos_homepage/Mount_Megiddo.jpg
0
25036
http://w3school.com/image3/Photos_homepage/fighter_planes.jpg
0
24765
http://w3school.com/image3/Photos_homepage/backround_L.jpg
0
24635
http://w3school.com/image3/Photos_homepage/Are_you_ready_to_meet_Jesus1.jpg
0
24579
http://w3school.com/image3/Photos_homepage/missed_the_rapture.jpg
0
24148
http://w3school.com/image3/Photos_homepage/May_14_1948_color.jpg
0
23232
http://w3school.com/image3/Photos_homepage/terrified_man.jpg
0
22502
http://w3school.com/image3/Photos_homepage/bearded_man.jpg
0
22490
http://w3school.com/image3/Photos_homepage/unexpected.jpg
0
22472
http://w3school.com/image3/Photos_homepage/Israeli_flag.jpg
0
20776
http://w3school.com/image3/Photos_homepage/pray_2_revised.jpg
0
20628
http://w3school.com/image3/Photos_homepage/Locust1.jpg
0
19919
http://w3school.com/image3/Photos_homepage/666revised.jpg
0
19826
http://w3school.com/image3/Photos_homepage/jews_fleeing.jpg
0
19366
http://w3school.com/image3/Photos_homepage/whats_going_on.jpg
0
18386
http://w3school.com/image3/126d.jpg
0
14715
http://w3school.com/image3/banner-bible-almanac2.jpg
0
14310
http://w3school.com/image3/Photos_homepage/cross_blood_stained_revised.jpg
0
13541
http://w3school.com/image3/Photos_homepage/Baptism_In_India_small.jpg
0
13392
http://w3school.com/image3/Photos_homepage/praying_hands.jpg
0
13094
http://w3school.com/image3/Photos_homepage/guillotine_2_small.png
0
11509
http://w3school.com/image3/Banner-poem.jpg
0
11341
http://w3school.com/email4.gif
0
10651
http://w3school.com/image3/banner-blog.jpg
0
9616
http://w3school.com/CSS/index.css
0
6632
http://w3school.com/image3/Photos_homepage/darkness.jpg
0
2348
https://pulse.w3counter.com/pulse.js?id=72029
0
1349
http://pulse.w3counter.com/ping.js?id=72029&activity=reading&userAgent=Mozilla%2F5.0%20(Linux%3B%20Android%207.0%3B%20Moto%20G%20(4))%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F90.0.4420.0%20Mobile%20Safari%2F537.36%20Chrome-Lighthouse&webpageName=Mega%20site%20of%20Bible%20Information&ref=&url=http%3A%2F%2Fw3school.com%2F&rand=603
0
618
http://www.supercounters.com/fc.php?id=1280418&v=1&w=0&ua=Mozilla%2F5.0%20(Linux%3B%20Android%207.0%3B%20Moto%20G%20(4))%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F90.0.4420.0%20Mobile%20Safari%2F537.36%20Chrome-Lighthouse&ref=&url=http%3A%2F%2Fw3school.com%2F&sw=360&sh=640&rand=17&style=11&m=9
0
291
http://widget.supercounters.com/hit.js
14400000
1999
http://widget.supercounters.com/images/11.gif
14400000
1289
Avoid an excessive DOM size — 2,771 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
2771
Maximum DOM Depth
b
10
Maximum Child Elements
387
Avoid `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.
Source
Image elements do not have explicit `width` and `height`
Reduce layout shifts and improve CLS by setting explicit width and height properties on image elements.
URL Failing Elements
https://www.w3counter.com/tracker.php?id=72029&userAgent=Mozilla%2F5.0%20(Linux%3B%20Android%207.0%3B%20Moto%20G%20(4))%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F90.0.4420.0%20Mobile%20Safari%2F537.36%20Chrome-Lighthouse&webpageName=Mega%20site%20of%20Bible%20Information&ref=&url=http%3A%2F%2Fw3school.com%2F&width=360&height=640&rand=20
70

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of w3school.com. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
`[id]` attributes on active, focusable elements are unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
Heading elements appear in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`[aria-*]` attributes match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
`button`, `link`, and `menuitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
ARIA `meter` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `progressbar` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
ARIA `tooltip` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `treeitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.
ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Names and labels

Buttons have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
`<frame>` or `<iframe>` elements have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
Form elements have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
`<object>` elements have `[alt]` text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Contrast

Background and foreground colors have a sufficient contrast ratio
Many (if not most) users find low-contrast text difficult or impossible to read.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Internationalization and localization

`<html>` element has a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
W3school.com may provide assistance to deaf or hearing-impaired users with captions on videos.

Names and labels

Image elements do not have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Failing Elements
img
img
img
Links do not have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
73

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that w3school.com should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids front-end JavaScript libraries with known security vulnerabilities
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Page has the HTML doctype
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.
Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Avoids `unload` event listeners
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.
Avoids Application Cache
Application cache is deprecated and is no longer recommended.
Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.
No browser errors logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.
Page has valid source maps
Consider deploying source maps for added benefits such as the ability to debug while in production.
No issues in the `Issues` panel in Chrome Devtools
There may be unresolved issues logged to Chrome Devtools.

Audits

Does not use HTTPS — 51 insecure requests found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL Request Resolution
http://w3school.com/
Allowed
http://w3school.com/CSS/index.css
Allowed
http://widget.supercounters.com/hit.js
Allowed
http://w3school.com/image3/Banner-poem.jpg
Allowed
http://w3school.com/image3/banner-blog.jpg
Allowed
http://w3school.com/image3/banner-bible-almanac2.jpg
Allowed
http://w3school.com/image3/Jerusalem_Home_Page.jpg
Allowed
http://w3school.com/image3/132.jpg
Allowed
http://w3school.com/image3/104c.jpg
Allowed
http://w3school.com/image3/126d.jpg
Allowed
http://w3school.com/image3/83c.jpg
Allowed
http://w3school.com/image3/Photos_homepage/bearded_man.jpg
Allowed
http://w3school.com/image3/Photos_homepage/pray_2_revised.jpg
Allowed
http://w3school.com/image3/Photos_homepage/whats_going_on.jpg
Allowed
http://w3school.com/image3/Photos_homepage/Israel_is_born.jpg
Allowed
http://w3school.com/image3/Photos_homepage/May_14_1948_color.jpg
Allowed
http://w3school.com/image3/Photos_homepage/church_small.jpg
Allowed
http://w3school.com/image3/Photos_homepage/atomic_blast.jpg
Allowed
http://w3school.com/image3/Photos_homepage/china_map.jpg
Allowed
http://w3school.com/image3/Photos_homepage/praying_hands.jpg
Allowed
http://w3school.com/image3/Photos_homepage/Rapture.jpg
Allowed
http://w3school.com/image3/Photos_homepage/missed_the_rapture.jpg
Allowed
http://w3school.com/image3/Photos_homepage/fighter_planes.jpg
Allowed
http://w3school.com/image3/Photos_homepage/Israeli_flag.jpg
Allowed
http://w3school.com/image3/Photos_homepage/Vatican_1_revised.jpg
Allowed
http://w3school.com/image3/Photos_homepage/three_Jews_revised.png
Allowed
http://w3school.com/image3/Photos_homepage/unexpected.jpg
Allowed
http://w3school.com/image3/Photos_homepage/Antichrist_killed_revised.jpg
Allowed
http://w3school.com/image3/Photos_homepage/126d_revised.jpg
Allowed
http://w3school.com/image3/Photos_homepage/jews_fleeing.jpg
Allowed
http://w3school.com/image3/Photos_homepage/666revised.jpg
Allowed
http://w3school.com/image3/Photos_homepage/guillotine_2_small.png
Allowed
http://w3school.com/image3/Photos_homepage/front_view_of_vatican.png
Allowed
http://w3school.com/image3/Photos_homepage/Locust1.jpg
Allowed
http://w3school.com/image3/Photos_homepage/darkness.jpg
Allowed
http://w3school.com/image3/Photos_homepage/many_soldiers_resized.jpg
Allowed
http://w3school.com/image3/Photos_homepage/street_in_front_of_bus_station.jpg
Allowed
http://w3school.com/image3/Photos_homepage/cross_blood_stained_revised.jpg
Allowed
http://w3school.com/image3/Photos_homepage/terrified_man.jpg
Allowed
http://w3school.com/image3/Photos_homepage/Backside_Mt_of_Olives.jpg
Allowed
http://w3school.com/image3/Photos_homepage/Mount_Megiddo.jpg
Allowed
http://w3school.com/image3/Photos_homepage/earthquake.jpg
Allowed
http://w3school.com/image3/Photos_homepage/eastern_gate.jpg
Allowed
http://w3school.com/image3/Photos_homepage/Are_you_ready_to_meet_Jesus1.jpg
Allowed
http://w3school.com/image3/Photos_homepage/Baptism_In_India_small.jpg
Allowed
http://w3school.com/image3/57edited.jpg
Allowed
http://w3school.com/email4.gif
Allowed
http://www.supercounters.com/fc.php?id=1280418&v=1&w=0&ua=Mozilla%2F5.0%20(Linux%3B%20Android%207.0%3B%20Moto%20G%20(4))%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F90.0.4420.0%20Mobile%20Safari%2F537.36%20Chrome-Lighthouse&ref=&url=http%3A%2F%2Fw3school.com%2F&sw=360&sh=640&rand=17&style=11&m=9
Allowed
http://w3school.com/image3/Photos_homepage/backround_L.jpg
Allowed
http://widget.supercounters.com/images/11.gif
Allowed
http://pulse.w3counter.com/ping.js?id=72029&activity=reading&userAgent=Mozilla%2F5.0%20(Linux%3B%20Android%207.0%3B%20Moto%20G%20(4))%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F90.0.4420.0%20Mobile%20Safari%2F537.36%20Chrome-Lighthouse&webpageName=Mega%20site%20of%20Bible%20Information&ref=&url=http%3A%2F%2Fw3school.com%2F&rand=603
Allowed
Links to cross-origin destinations are unsafe
Improve performance and prevent security vulnerabilities by adding rel="noopener" and rel="noreferrer" to external links.

Audits

Displays images with incorrect aspect ratio
Ensure that image display dimensions match their natural aspect ratio.
URL Aspect Ratio (Displayed) Aspect Ratio (Actual)
http://w3school.com/image3/57edited.jpg
590 x 200 (2.95)
959 x 308 (3.11)
http://w3school.com/image3/83c.jpg
210 x 163 (1.29)
566 x 384 (1.47)
http://w3school.com/image3/104c.jpg
230 x 161 (1.43)
480 x 248 (1.94)
http://w3school.com/image3/132.jpg
560 x 229 (2.45)
723 x 229 (3.16)
http://w3school.com/image3/126d.jpg
208 x 159 (1.31)
208 x 150 (1.39)
http://w3school.com/email4.gif
116 x 116 (1.00)
91 x 117 (0.78)
Serves images with low resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
URL Displayed size Actual size Expected size
http://w3school.com/image3/Banner-poem.jpg
275 x 119
275 x 119
550 x 238
http://w3school.com/image3/banner-bible-almanac2.jpg
275 x 119
275 x 119
550 x 238
http://w3school.com/image3/banner-blog.jpg
275 x 119
275 x 119
550 x 238
https://www.w3counter.com/tracker.php?id=72029&userAgent=Mozilla%2F5.0%20(Linux%3B%20Android%207.0%3B%20Moto%20G%20(4))%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F90.0.4420.0%20Mobile%20Safari%2F537.36%20Chrome-Lighthouse&webpageName=Mega%20site%20of%20Bible%20Information&ref=&url=http%3A%2F%2Fw3school.com%2F&width=360&height=640&rand=20
80 x 15
80 x 15
160 x 30
42

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for w3school.com. This includes optimizations such as providing meta data.

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.
robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Mobile Friendly

Does not have a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of w3school.com on mobile screens.
Document doesn't use legible font sizes
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Tap targets are not sized appropriately
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.

Content Best Practices

Document does not have a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.
Links do not have descriptive text — 4 links found
Make use of descriptive link text to assist search engines in understanding the content.
Image elements do not have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Failing Elements
img
img
img

Crawling and Indexing

Links are not crawlable
Ensure that the 'href' attribute of anchor elements links to the appropriate destination. This allows for more pages of the site to be discovered by search engines.

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
0

Progressive Web App

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of w3school.com. This includes details about web app manifests.

Installable

Web app manifest or service worker do not meet the installability requirements — 1 reason
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.
Failure reason
No manifest was fetched

PWA Optimized

Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.
Does not redirect HTTP traffic to HTTPS
It is advised to redirect all HTTP traffic to HTTPS, in order to enable secure web features for all users.
Is not configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Does not set a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Content is not sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.
Does not have a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of w3school.com on mobile screens.
Does not provide a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.
Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Hosting

Server Location

Server IP Address: 108.175.168.68
Continent: North America
Country: United States
United States Flag
Region: New Jersey
City: Piscataway
Longitude: -74.459
Latitude: 40.5515
Currencies: USD
USN
USS
Languages: English

Web Hosting Provider

Name IP Address
24 SHELLS
Registration

Domain Registrant

Private Registration: Yes
Name: REDACTED FOR PRIVACY
Organization: REDACTED FOR PRIVACY
Country: US
City: REDACTED FOR PRIVACY
State: OH
Post Code: REDACTED FOR PRIVACY
Email:
Phone: REDACTED FOR PRIVACY
Note: Registration information is derived from various sources and may be inaccurate.

Domain Registrar

Name IP Address
Domain.com, LLC 172.64.145.59
Security

Visitor Safety

Mature Content: Not Likely
McAfee WebAdvisor Rating: Unknown
WOT Rating:
WOT Trustworthiness: 40/100
WOT Child Safety: 50/100
Note: Safety information is not guaranteed.

SSL/TLS Certificate

Technical

DNS Lookup

A Records

Host IP Address Class TTL
w3school.com. 108.175.168.68 IN 14399

NS Records

Host Nameserver Class TTL
w3school.com. ns2.lifeisatest.com. IN 21599
w3school.com. ns1.lifeisatest.com. IN 21599

MX Records

Priority Host Server Class TTL
0 w3school.com. w3school.com. IN 14399

SOA Records

Domain Name Primary NS Responsible Email TTL
w3school.com. ns1.lifeisatest.com. billing.24shells.net. 21599

HTTP Response Headers

HTTP-Code: HTTP/1.1 200 OK
Date: 24th May, 2021
Server: Apache/2.2.23 (Unix) mod_ssl/2.2.23 OpenSSL/1.0.0-fips mod_bwlimited/1.4
Content-Type: text/html
Last-Modified: 2nd February, 2021
ETag: "b700c53-38ac1-5ba4ffbe417f3"
Accept-Ranges: bytes
Content-Length: 232129

Whois Lookup

Created: 29th January, 2000
Changed: 14th January, 2021
Expires: 29th January, 2022
Registrar: Domain.com, LLC
Status: clientTransferProhibited
clientUpdateProhibited
Nameservers: ns1.lifeisatest.com
ns2.lifeisatest.com
Owner Name: REDACTED FOR PRIVACY
Owner Organization: REDACTED FOR PRIVACY
Owner Street: REDACTED FOR PRIVACY
Owner Post Code: REDACTED FOR PRIVACY
Owner City: REDACTED FOR PRIVACY
Owner State: FL
Owner Country: US
Owner Phone: REDACTED FOR PRIVACY
Owner Email: https://tieredaccess.com/contact/718c1746-57ba-4332-886b-2b25541b6867
Admin Name: REDACTED FOR PRIVACY
Admin Organization: REDACTED FOR PRIVACY
Admin Street: REDACTED FOR PRIVACY
Admin Post Code: REDACTED FOR PRIVACY
Admin City: REDACTED FOR PRIVACY
Admin State: REDACTED FOR PRIVACY
Admin Country: REDACTED FOR PRIVACY
Admin Phone: REDACTED FOR PRIVACY
Admin Email: REDACTED FOR PRIVACY
Tech Name: REDACTED FOR PRIVACY
Tech Organization: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR PRIVACY
Tech Post Code: REDACTED FOR PRIVACY
Tech City: REDACTED FOR PRIVACY
Tech State: REDACTED FOR PRIVACY
Tech Country: REDACTED FOR PRIVACY
Tech Phone: REDACTED FOR PRIVACY
Tech Email: REDACTED FOR PRIVACY
Full Whois: Domain Name: W3SCHOOL.COM
Registry Domain ID: 18659024_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.domain.com
Registrar URL: www.domain.com
Updated Date: 2021-01-14T15:43:18
Creation Date: 2000-01-29T09:25:17
Registrar Registration Expiration Date: 2022-01-29T09:25:16
Registrar: Domain.com, LLC
Registrar IANA ID: 886
Reseller: MyDomain
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Registry Registrant ID:
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization: REDACTED FOR PRIVACY
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province: FL
Registrant Postal Code: REDACTED FOR PRIVACY
Registrant Country: US
Registrant Phone: REDACTED FOR PRIVACY
Registrant Phone Ext:
Registrant Fax: REDACTED FOR PRIVACY
Registrant Fax Ext:
Registrant Email: https://tieredaccess.com/contact/718c1746-57ba-4332-886b-2b25541b6867
Registry Admin ID:
Admin Name: REDACTED FOR PRIVACY
Admin Organization: REDACTED FOR PRIVACY
Admin Street: REDACTED FOR PRIVACY
Admin City: REDACTED FOR PRIVACY
Admin State/Province: REDACTED FOR PRIVACY
Admin Postal Code: REDACTED FOR PRIVACY
Admin Country: REDACTED FOR PRIVACY
Admin Phone: REDACTED FOR PRIVACY
Admin Phone Ext:
Admin Fax: REDACTED FOR PRIVACY
Admin Fax Ext:
Admin Email: REDACTED FOR PRIVACY
Registry Tech ID:
Tech Name: REDACTED FOR PRIVACY
Tech Organization: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR PRIVACY
Tech City: REDACTED FOR PRIVACY
Tech State/Province: REDACTED FOR PRIVACY
Tech Postal Code: REDACTED FOR PRIVACY
Tech Country: REDACTED FOR PRIVACY
Tech Phone: REDACTED FOR PRIVACY
Tech Phone Ext:
Tech Fax: REDACTED FOR PRIVACY
Tech Fax Ext:
Tech Email: REDACTED FOR PRIVACY
Name Server: ns1.lifeisatest.com
Name Server: ns2.lifeisatest.com
DNSSEC: unsigned
Registrar Abuse Contact Email: compliance@domain-inc.net
Registrar Abuse Contact Phone: +1.6027165396
URL of the ICANN WHOIS Data Problem Reporting System: http://wdprs.internic.net/
>>> Last update of WHOIS database: 2021-05-24T07:03:01Z <<<

"For more information on Whois status codes, please visit https://icann.org/epp"

Registration Service Provider:
MyDomain, support@mydomain-inc.com
+1.8004057875
This company may be contacted for domain login/passwords,
DNS/Nameserver changes, and general domain support questions.

Nameservers

Name IP Address
ns1.lifeisatest.com 108.175.168.67
ns2.lifeisatest.com 108.175.168.68
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