Report for


The overall score for this website.


How accessible the website is to mobile and disabled users.


How satisfying the website is likely to be for users.


How well marketed and popular the website is.


How well designed and built the website is.

Nibbler tested a sample of 5 pages from this website at 4:04 PM on Nov 24, 2021 (GMT).

Top priorities for website improvement

  • Consider a leading website analytics solution, such as WebTrends or Google Analytics. (read more)
  • Make sure that all the pages of this website include a meta description. If you don't include one, Google will choose a sample of text from the page to appear in the search engine result. By including a meta description, you can control how your search engine result will appear. (read more)
  • Add width and height attributes to all image tags. The width and height you specify should be the same as the source image. If you want to resize an image in the browser, use CSS. (read more)


0% of pages use analytics

No Analytics SolutionNo

  • None of this website is using any recognised analytics software. It is still possible to gather a great deal of information from webserver logs, however complete visitor analysis requires client-side Javascript or an image not found here.
    • Consider a leading website analytics solution, such as WebTrends or Google Analytics.
  • Note that this test can only detect recognised analytics solutions. If an analytics solution is new, obscure or used in a non-standard way (e.g. it has been customised) it may not be detected.

Meta tags3.6

This is how this website will look in Google search listings:

World Wide Web Consortium (W3C)

The World Wide Web Consortium (W3C) is an international community where Member organizations, a full-time staff, and the public work together to develop Web standards ...

  • All pages include at least some metadata, but only 20.0% of pages have a description meta tag. The description meta data is important as it appears on Google's search result pages.

Meta Tags (name attribute)

Page URLNameContent World Wide Web Consortium (W3C) is an international community where Member organizations, a full-time staff, and the public work together to develop Web standards.

Meta Tags (http-equiv attribute)

Page URLNameContent; charset=utf-8; charset=utf-8; charset=utf-8; charset=utf-8; charset=utf-8


71% of images have a clearly defined size

54 images are being resized by the browser

Amount of content8.7

Rendering Chart...

  • This website has an average of 600 words per page. The amount of content on a website has been shown to correlate with its search engine ranking.

Amount of content discovered

Server behavior9.9

Yes404 page


  • This website handles missing pages correctly by sending a 404 HTTP status code.
  • This website was served with GZIP encoding. This is very good because it reduces the loading time of a web page.
  • 3 of the pages of this website follow the best practice of using a permanent (HTTP 301) redirect between URLs with/without trailing slashes. These pages are ideal.
  • Adding or removing a trailing slash to one of the URLs of this site returns an error page (404). This is OK as no content is being duplicated, but visitors might try browsing to the pages of this website with or without a trailing slash. Ideally, the alternate URL should redirect to the correct page.
  • This website follows the best practice of using a permanent (HTTP 301) redirect from to This is ideal.


This website is linked with the Twitter account @W3C

This website's Twitter account has

  • This website was found to link the Twitter account W3C (@W3C).
  • This website's Twitter account has made 12,575 tweets to 191,760 followers.

Source: Twitter


Mobile screenshot of www.w3.orgTablet screenshot of
  • All of this website appears to be optimised for viewing on a mobile phone or a tablet.

Media specific CSS detected

MediaMin widthMax widthCSS file

Page titles10.0

100% of pages have defined titles

0% of page titles are weak

  • All pages were found to use page titles appropriately. Page titles appear in search results and at the top of the browser's window when visiting the site. Appropriate page titles are particularly important for search engine optimization.


accessibility appearances applications architecture automotive avenue benefits blog champion contact corrections current design developer devices document donations draft election epub events featured fees fellowship footer group groups highlights history hypothetical industry jobs join liaisons links list member members membership model navigation news note october open opens press principles process questions quick render resources semantic semantics site specifications standards strategic structural talks technical technology tools transportation updates video vocabulary work working

  • All pages were found to use defined headings. This is excellent as it allows visitors and search engines to summarize the content of webpages quickly. Correctly defined headings aid accessibility and are particularly important for search engine optimization.

Page headings detail

URLHeadingLevel NavigationH2 and AppearancesH2 W3CH2 BlogH2 and fellowship at W3CH2 W3C MemberH2 Accessibility and W3C standards (Video)H2 NavigationH2 for AllH3 and IndustryH3 Work GroupsH3 ResourcesH3 opens Technical Architecture Group (TAG) electionH3 Automotive and Transportation Champion (USA, China, Japan)H3 Translation of WCAG 2.1 in ArabicH3 Call for Review of Proposed Corrections: Verifiable Credentials Data Model v1.1 RecommendationH3 Public Working Draft: IMSC Hypothetical Render ModelH3 Group Note: EPUB 3 Structural Semantics Vocabulary 1.1H3 updates its Process DocumentH3 Strategic Highlights, October 2021H3 W3CH3 UpdatesH3 NavigationH2 Design and ApplicationsH2 of DevicesH2 ArchitectureH2 WebH2 TechnologyH2 of ServicesH2 and Authoring ToolsH2 About Standards?H2 Standards PrinciplesH2 LinksH2 The StandardsH2 for AllH2 NavigationH2 W3CH3 UpdatesH3 NavigationH2 ForumsH2 FeedbackH2 PromotionH2 About Participation?H2 Developer AvenueH2 to joinH2 LinksH2 AccountsH2 NavigationH2 and Business Groups, Working Groups and More, instructions for joining, …H3, workshops, membership meetings, endorsed confs, …H3 lists, blogs and microblogs, news and newsletter, tutorials, video, …H3 of specifications, charters, strategy …H3, test suites, open source software, …H3 Developer Avenue, Translations, tools, logos, education and outreach, …H3 of liaisons, requesting a liaison, EU-funded projects, …H3 W3CH3 UpdatesH3 NavigationH2 W3CH2 about Membership?H2 Members on W3CH2 MembersH2 MembersH2 NavigationH2 of benefits, testimonials, member initiatives, submissions, …H3, Member agreement, current members, …H3 fees, fee history, …H3 W3CH3 UpdatesH3 W3CH1 NavigationH2 MissionH2 About W3CH2 and AnalystsH2 and DonationsH2 and FellowshipsH2 About W3C or the Web?H2 LinksH2 on Web Accessibility and W3C StandardsH2 on Web StandardsH2 on W3CH2 NavigationH2, vision, …H3, organization, revenues, process, patent policy, history, …H3 releases, requests for photos and interviews, …H3 for W3C operations, validator service, …H3 opportunities, fellows, …H3 W3CH3 UpdatesH3


100% of pages are optimized for printing

  • All pages of this website appear to be optimized for printing (using CSS).

URL format10.0

  • This website uses appropriate web addresses (URLs) throughout. This is excellent and will help search engine placement, usability and the marketability of this website.


3,006 Most popular website in the world

This website recently saw a moderate increase in popularity.

  • This is the 3,006 most popular website in the world.
  • Over the past 3 months, this website has experienced a moderate increase in popularity.
  • This website accounts for 62.8% of the Internet traffic to and its subdomains.

Source: Alexa


Last updated November 20, 2021

  • It looks like this website was last updated on Saturday, November 20, 2021. This is good because visitors perceive up-to-date websites as more credible. Websites that are updated regularly are also spidered by search engines more often.
  • To find this information we used the last modified dates reported by this website's server in addition to looking for dates written on each page.

All dates found

11/16/ text
11/15/ text
11/9/ text
11/4/ text
11/2/ text
9/15/ text
10/21/ text
10/20/ text
10/1/ text
11/19/ modified header
1/20/ modified header
10/9/ modified header
10/9/ modified header
7/8/ modified header
10/28/ modified header
12/2/ modified header
11/8/ modified header
4/3/ modified header
8/27/ modified header
12/2/ modified header
9/23/ modified header
11/25/ modified header
11/25/ modified header
7/25/ modified header
11/9/ modified header
6/5/ modified header
7/25/ modified header
12/1/ modified header
7/21/ modified header
10/28/ modified header
9/23/ modified header
4/25/ modified header
4/25/ modified header
4/25/ modified header
7/14/ modified header
4/8/ modified header
11/20/ modified header
6/30/ modified header

Domain agei

  • Sorry, we cannot check the domain age of .org websites.

Fast, branded website audits

Insites creates professional website reports that can be shared with your clients.

How does Insites compare?

Tests 17 fixed tests 50+ testsCovers SEO, SEM, Google My Business, reviews, social media and much more
Add your brandingNoYes
Export & shareNoPDF & link
Lead generationNoEmbed on your site
Competitor auditsNoYes
Test as a batchNoYes
Integrations + APINoYes
Multi-lingualNo20+ languages
Try it free