Overview of the SEO Check
Meta information
58% 
Page quality
67% 
Page structure
95% 
Link structure
93% 
Server
100% 
External factors
100% 
SEO Score
Response time
0.08 s
File size
104.80 kB
Words
649
Media files
8
Number of links
96 internal / 3 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
W3C
The page title is too short. (47 pixels of 580 max pixel length) Optimize title
The page title is only one word.
There are no duplicate words in the title
Meta description
(Critically important)
The World Wide Web Consortium (W3C) develops standards and guidelines to help everyone build a web based on the principles of accessibility, internationalization, privacy and security.
The meta description is too long: 1149 pixels from max. 1000 pixels. Optimize description
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
No canonical link is specified.
Language
(Somewhat important)
Language detected in text: en
Language defined in HTML: en
Server location: United States of America
The following language is defined by HTML: en
Alternate/Hreflang Links
(Somewhat important)
There are no alternate links specified on this page.
Other meta tags
(Somewhat important)
There is no rel next meta tag on this page.
There is no rel prev meta tag on this page.
Domain
(Somewhat important)
The domain is no subdomain.
The domain length is good.
The domain does not contain non-latin characters.
Page URL
(Somewhat important)
No parameters were found in the URL.
No session ID was found in the URL.
The URL does not have too many subdirectories.
Charset encoding
(Somewhat important)
The charset encoding (UTF-8) is set correctly.
Doctype
(Nice to have)
The doctype HTML 5 is set correctly.
The doctype is placed at first in the HTML code.
Favicon
(Nice to have)
No favicon is linked in the HTML code.

Meta tags

NameValue
viewportwidth=device-width, initial-scale=1
descriptionThe World Wide Web Consortium (W3C) develops standards and guidelines to help everyone build a web based on the principles of accessibility, internationalization, privacy and security.
thumbnailhttps://www.w3.org/assets/website-2021/images/w3c-opengraph-image.png
langen
twitter:cardsummary_large_image
twitter:sitew3c
twitter:urlhttps://www.w3.org/
twitter:titleW3C
twitter:descriptionThe World Wide Web Consortium (W3C) develops standards and guidelines to help everyone build a web based on the principles of accessibility, internationalization, privacy and security.
twitter:imagehttps://www.w3.org/assets/website-2021/images/w3c-opengraph-image.png
og:urlhttps://www.w3.org/
og:typewebsite
og:titleW3C
og:imagehttps://www.w3.org/assets/website-2021/images/w3c-opengraph-image.png
og:image:width1200
og:image:height630
og:descriptionThe World Wide Web Consortium (W3C) develops standards and guidelines to help everyone build a web based on the principles of accessibility, internationalization, privacy and security.
og:site_nameW3C
charsetutf-8

Test up to 1.000 webpages of w3.org with our free plan!

Try For Free
No trial. It's just free!

Page quality

Content
(Critically important)
Words from the H1 heading are not used in the page content.
This page contains 649 words. That's ok.
28.5% of the text are stop words.
The page contains a listing, which indicates a good text layout.
11 paragraphs were found on this page.
No placeholders texts or images were found.
There are no duplicates on the site.
The average number of words per sentence of 22.38 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
No Apple touch icon is specified.
A viewport "width=device-width, initial-scale=1" is provided.
This page only loads 1 JavaScript files. That's good!
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 13 tags for this page.
Image SEO
(Somewhat important)
7 images have no alt attribute. The content of alt attributes is used by search engines.
Social Networks
(Nice to have)
There are only a few social sharing widgets on the page. Make your website popular in social networks with social sharing widgets.
Additional markup
(Nice to have)
No additional page markup was found.
HTTPS
(Somewhat important)
This website uses HTTPS to protect privacy and integrity of the exchanged data.
All included files are also transferred via HTTPS.

Media list

Page structure

H1 heading
(Critically important)
Making the Web work
The H1 heading is too short (19 characters). It should be at least 20 Characters long.
Headings
(Important)
Some headings occur twice on the page.

Heading structure

Heading levelContent
H1 Making the Web work
H2 Standards
H2 Groups
H2 Get involved
H2 Resources
H2 News and events
H2 About
H2 Working with stakeholders of the Web
H2 Web standards
H2 Get involved Duplicate text
H2 Latest news
H3 HTML Ruby Markup Extensions Working Draft Published
H3 W3C opens Advisory Board (AB) election
H3 Draft Notes: Thai and Lao Layout Requirements
H3 IMSC Hypothetical Render Model is a W3C Recommendation
Some anchor texts are used more than once.
The number of internal links is ok.
None of the anchor texts is too long.
All internal links are not using dynamic parameters.
There are 3 external links on this page.
LinkAttributesAnchor text
https://www.w3.org/Anchor Skip to content
https://www.w3.org/ja/Subdomain 日本語ホームページJapanese website
https://www.w3.org/zh-hans/Subdomain 简体中文首页Chinese website
https://www.w3.org/Subdomain Visit the W3C homepage
IMG-ALT W3C
https://www.w3.org/standards/Subdomain Standards
https://www.w3.org/standards/Subdomain Explore web standards
/standards/about/Subdomain About W3C web standards
https://www.w3.org/TR/Subdomain W3C standards and drafts
/standards/types/Subdomain Types of documents W3C publishes
https://www.w3.org/translations/Subdomain Translations of W3C standards and drafts
/standards/review/Subdomain Reviews and public feedback
https://www.w3.org/liaisons/Subdomain Liaisons
/get-involved/promote/Subdomain Promote web standards
https://www.w3.org/groups/Subdomain Groups
https://www.w3.org/groups/Subdomain About W3C groups
https://www.w3.org/groups/wg/Subdomain Working Groups
https://www.w3.org/groups/ig/Subdomain Interest Groups
https://www.w3.org/groups/cg/Subdomain Community Groups
https://www.w3.org/groups/bg/Subdomain Business Groups
/groups/other/tag/Subdomain Technical Architecture Group
/invited-experts/Subdomain Invited Experts
https://www.w3.org/guide/Subdomain Participant guidebook
/about/positive-work-environment/Subdomain Positive work environment
https://www.w3.org/get-involved/Subdomain Get involved
https://www.w3.org/get-involved/Subdomain Find ways to get involved
https://www.w3.org/ecosystems/Subdomain Browse our work by industry
https://www.w3.org/membership/Subdomain Become a Member
https://www.w3.org/Member/Subdomain Member Home (restricted)
https://www.w3.org/email/Subdomain Follow mailing lists
https://www.w3.org/donate/Subdomain Make a donation
https://www.w3.org/sponsor/Subdomain Sponsor an event
https://www.w3.org/resources/Subdomain Resources
https://www.w3.org/resources/Subdomain Learn from W3C resources
https://www.w3.org/developers/Subdomain Developers
/developers/tools/Subdomain Validators and tools
/WAI/fundamentals/Subdomain Accessibility fundamentals
/International/i18n-drafts/nav...Subdomain Internationalization
https://www.w3.org/translations/Subdomain Text duplicate Translations of W3C standards and drafts
/policies/code-of-conduct/Subdomain Code of conduct
https://www.w3.org/reports/Subdomain Reports
https://www.w3.org/news-events/Subdomain News and events
https://www.w3.org/news-events/Subdomain Follow news and events
https://www.w3.org/news/Subdomain News
https://www.w3.org/blog/Subdomain Blog
/press-releases/Subdomain Press releases
/about/press-media/Subdomain Press and media
https://www.w3.org/events/Subdomain Events
/news-events/w3c-tpac/Subdomain Annual W3C Conference (TPAC)
/policies/code-of-conduct/Subdomain Text duplicate Code of conduct
https://www.w3.org/about/Subdomain About
https://www.w3.org/about/Subdomain Find out more about us
https://www.w3.org/mission/Subdomain Our mission
/about/leadership/Subdomain Leadership
https://www.w3.org/staff/Subdomain Staff
https://www.w3.org/evangelists/Subdomain Evangelists
https://www.w3.org/careers/Subdomain Careers
/about/diversity/Subdomain Diversity
/about/corporation/Subdomain Corporation
https://www.w3.org/sponsor/Subdomain Sponsoring W3C
/about/press-media/Subdomain Media kit
https://www.w3.org/contact/Subdomain Contact
https://www.w3.org/policies/Subdomain Policies and legal information
https://www.w3.org/help/Subdomain Help
https://www.w3.org/help/search/Search
/users/myprofile/My account
https://www.w3.org/standards/standards and guidelines
/mission/accessibility/accessibility
/mission/internationalization/internationalization
/mission/privacy/privacy
/mission/security/security
https://www.w3.org/about/Read more about W3C
/ecosystems/e-commerce/E-commerce
/ecosystems/media/Media & Entertainment
/ecosystems/publishing/Publishing
https://www.w3.org/ecosystems/Discover how W3C supports these organizations
/membership/list/Members
https://www.w3.org/staff/staff
https://www.w3.org/standards/Learn more about Web standards
https://www.w3.org/get-involved/Ways to get involved
https://www.w3.org/news/Text duplicate News
/press-releases/Press Releases
https://www.w3.org/blog/Text duplicate Blog
/news/2024/working-draft-html-...HTML Ruby Markup Extensions Working Draft Published
/news/2024/w3c-opens-advisory-...W3C opens Advisory Board (AB) election
/news/2024/draft-notes-thai-an...Draft Notes: Thai and Lao Layout Requirements
/news/2024/imsc-hypothetical-r...IMSC Hypothetical Render Model is a W3C Recommendation
https://www.w3.org/Subdomain Home
https://www.w3.org/contact/Subdomain Text duplicate Contact
https://www.w3.org/help/Subdomain Text duplicate Help
https://www.w3.org/donate/Subdomain Donate
https://www.w3.org/policies/Subdomain Legal & Policies
/about/corporation/Subdomain Text duplicate Corporation
https://status.w3.org/External Subdomain System Status
https://w3c.social/@w3cExternal W3C on Mastodon
https://github.com/w3c/External W3C on GitHub
https://www.w3.org/Subdomain World Wide Web Consortium
https://www.w3.org/policies/Subdomain Anchor liability
https://www.w3.org/policies/Subdomain Anchor trademark
/copyright/document-license/Subdomain permissive license
A-TITLE W3C Document License

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.w3.org/"
HTTP header
(Important)
No X-Powered HTTP header is sent.
This page uses GZip for compressed data transmission.
Performance
(Somewhat important)
The page response time is excellent with 0.08 seconds.
This page only loads 3 CSS files. That's ok.
This page only loads 1 JavaScript files. That's good!
The file size of the HTML document is fine (105 kB).

HTTP Response Header

NameValue
dateWed, 15 May 2024 12:23:21 GMT
content-typetext/html; charset=UTF-8
cache-controlproxy-revalidate, public, s-maxage=600
x-strata-cache-tagsglobal,homepage,blogListing,pressReleasesListing,eventsListing,newsListing,ecosystemsLandingPage,blogPosts,newsArticles,pressReleases,members
x-frontend-contentPUBLISHED
varyOrigin, Accept-Encoding
x-backendsf-frontend
x-request-id884313bcdd11c0fd
strict-transport-securitymax-age=15552000; includeSubdomains; preload
content-security-policyframe-ancestors 'self' https://cms.w3.org/ https://cms-dev.w3.org/; upgrade-insecure-requests
cf-cache-statusHIT
age189
set-cookie251 Characters
servercloudflare
cf-ray88431948cb7b9ba6-FRA
content-encodinggzip
alt-svch3=":443"; ma=86400
statuscode200
http_versionHTTP/2

External factors

Blacklists
(Nice to have)
This website is not classified "for adult only".
This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 246,456 referring domains.
This page has 126,381,566 backlinks.
This page has backlinks from 129,141 different ip addresses.
Facebook popularity
(Somewhat important)
The page has 11132 shares and comments on Facebook.

Robots.txt

#
# robots.txt for https://www.w3.org/
#
# $Id: robots.txt,v 1.90 2024/05/10 21:25:48 gerald Exp $
#

# For use by search.w3.org
User-agent: W3C-gsa
Disallow: /Out-Of-Date

User-agent: W3T_SE
Disallow: /Out-Of-Date

User-agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT; MS Search 4.0 Robot)
Disallow: /

# W3C Link checker
User-agent: W3C-checklink
Disallow:

# Applebot continues to make hundreds of thousands of reqs/day for this area
# even though it has been returning permanent redirects for years
User-agent: Applebot
Disallow: /People/domain/

# the following settings apply to all bots
User-agent: *
# Blogs - WordPress
# https://codex.wordpress.org/Search_Engine_Optimization_for_WordPress#Robots.txt_Optimization
Disallow: /*/wp-admin/
Disallow: /*/wp-includes/
Disallow: /*/wp-content/plugins/
Disallow: /*/wp-content/cache/
Disallow: /*/wp-content/themes/
Disallow: /blog/*/trackback/
Disallow: /blog/*/feed/
Disallow: /blog/*/comments/
Disallow: /blog/*/category/*/*
Disallow: /blog/*/*/trackback/
Disallow: /blog/*/*/feed/
Disallow: /blog/*/*/comments/
Disallow: /blog/*/*?
Disallow: /community/trackback/
Disallow: /community/feed/
Disallow: /community/comments/
Disallow: /community/category/*/*
Disallow: /community/*/trackback/
Disallow: /community/*/feed/
Disallow: /community/*/comments/
Disallow: /community/*/category/*/*
Disallow: /community/*?
Disallow: /Consortium/Offices/trackback/
Disallow: /Consortium/Offices/feed/
Disallow: /Consortium/Offices/comments/
Disallow: /Consortium/Offices/category/*/*
Disallow: /Consortium/Offices/*/trackback/
Disallow: /Consortium/Offices/*/feed/
Disallow: /Consortium/Offices/*/comments/
Disallow: /Consortium/Offices/*?
# Wikis - Mediawiki
# https://www.mediawiki.org/wiki/Manual:Robots.txt
Disallow: /wiki/index.php?
Disallow: /wiki/index.php/Help
Disallow: /wiki/index.php/MediaWiki
Disallow: /wiki/index.php/Special:
Disallow: /wiki/index.php/Template
Disallow: /wiki/skins/
Disallow: /*/wiki/index.php?
Disallow: /*/wiki/index.php/Help
Disallow: /*/wiki/index.php/MediaWiki
Disallow: /*/wiki/index.php/Special:
Disallow: /*/wiki/index.php/Template
Disallow: /*/wiki/Special:
# various other access-controlled or expensive areas
Disallow: /2004/ontaria/basic
Disallow: /Team/
Disallow: /Project
Disallow: /Web
Disallow: /Systems
Disallow: /Out-Of-Date
Disallow: /2005/06/blog/
Disallow: /2004/08/W3CTalks
Disallow: /2007/11/Talks/search
Disallow: /People/all/
Disallow: /RDF/Validator/ARPServlet
Disallow: /RDF/Validator/rdfval
Disallow: /2003/03/Translations/byLanguage
Disallow: /2003/03/Translations/byTechnology
Disallow: /2005/11/Translations/Query
Disallow: /2000/06/webdata/xslt
Disallow: /2000/09/webdata/xslt
Disallow: /2005/08/online_xslt/xslt
Disallow: /Search/Mail/Public/
Disallow: /2006/02/chartergen
Disallow: /2004/01/pp-impl
Disallow: /Consortium/supporters
Disallow: /2012/pyRdfa/extract
Disallow: /WAI/PF/comments/
Disallow: /WAI/ER/tests/
Disallow: /WAI/events/
Disallow: /participate/conferences.xml
Disallow: /scripts/
Disallow: /2005/01/yacker/
Disallow: /2005/01/yacker?
Disallow: /2005/07/pubrules?
Disallow: /ns/hydra/console/?
Disallow: /2007/08/grddl/?
Disallow: /2009/07/webidl-check?
Disallow: /RDF/Validator/ARPServlet?
Disallow: /2000/06/webdata/xsv?
Disallow: /2000/09/webdata/xsv?
Disallow: /Style/CSS/members.be/
Disallow: /services
Disallow: /2021/05/view-gallery/
Disallow: /*,*

# WAI indexing
Disallow: /WAI/beta/
Disallow: /WAI/ut1/
Disallow: /WAI/ut2/
Disallow: /WAI/ut3/
Disallow: /WAI/ut4/
# Disallow: /WAI/EO/Drafts/
Disallow: /WAI/drafts/

Search preview

www.w3.org
W3C
The World Wide Web Consortium (W3C) develops standards and guidelines to help everyone build a web based on the principles of accessibility, internationalization, privacy and security.

Most important keywords

Following keywords were found. You can check the keyword optimization of this page for each keyword.

KeywordResultRecheck
W3C70%Check
web68%Check
W3C standards62%Check
web standards61%Check
Web Consortium58%Check
Wide Web58%Check
develop Web58%Check
web based58%Check
World Wide Web55%Check
Wide Web Consortium55%Check

Test up to 1.000 webpages of w3.org with our free plan!

Try For Free
No trial. It's just free!

Cookie Policy

We use cookies to make our site work and also for analytics and advertising purposes. You can enable or disable optional cookies as desired. See the following links for more information.

We need these so the site can function properly

So we can better understand how visitors use our website

So we can serve you tailored ads and promotions