Overview of the SEO Check
Meta information
80% 
Page quality
89% 
Page structure
88% 
Link structure
88% 
Server
100% 
External factors
100% 
SEO Score
Response time
0.16 s
File size
30.10 kB
Words
1341
Media files
24
Number of links
102 internal / 15 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
World Wide Web Consortium (W3C)
The length of the page title is perfect. (324 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
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.
The meta description is too long: 1071 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 XHTML 1.0 Strict is set correctly.
The doctype is placed at first in the HTML code.
Favicon
(Nice to have)
The favicon is linked correctly.

Meta tags

NameValue
viewportwidth=device-width
descriptionThe 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.
langen
Content-Typetext/html; charset=utf-8

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Page quality

Content
(Critically important)
This page contains 1341 words. That's ok.
32% of the text are stop words.
Keywords used in the page title are also used in the page content. That's good!
The page contains a listing, which indicates a good text layout.
20 paragraphs were found on this page.
The text content is perfect.
No placeholders texts or images were found.
There are no duplicates on the site.
The average number of words per sentence of 23.81 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" is provided.
This page only loads 2 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 27 tags for this page.
Image SEO
(Somewhat important)
1 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.

Page structure

H1 heading
(Critically important)
W3C W3C
The H1 heading is too short (7 characters). It should be at least 20 Characters long.
Headings
(Important)
There are 27 headings on the page. The amount of headings should be in a more proper relation to the amount of text.

Heading structure

Heading levelContent
H1 W3C W3C
H2 Site Navigation
H2 News
H2 Talks and Appearances Header link
H2 Events Header link
H2 About W3C Header link
H2 Donations Header link
H2 W3C Blog Header link
H2 Jobs and fellowship at W3C Header link
H2 Featured W3C Member Header link
H2 Web Accessibility and W3C standards (Video) Header link
H2 Footer Navigation
H3 Web for All Header link
H3 Web and Industry Header link
H3 W3C Work Groups Header link
H3 Dev Resources Header link
H3 W3C welcomes feedback on the beta of its new website
H3 Call for Review: WAI-ARIA 1.2 is a W3C Proposed Recommendation
H3 Upcoming W3C Workshop: Secure the Web Forward
H3 Working Group Note: EPUB Type to ARIA Role Authoring Guide 1.1
H3 First Public Working Draft: CSS Animations Level 2
H3 First Public Working Draft: Web Animations Level 2
H3 Updated Candidate Recommendations for EPUB 3.3, EPUB Reading Systems 3.3, EPUB Accessibility 1.1
H3 Authorized Translation of WCAG 2.1 in Ukrainian
H3 Navigation
H3 Contact W3C
H3 W3C Updates
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 15 external links on this page.
LinkAttributesAnchor text
https://www.w3.org/IMG-ALT W3C
https://www.w3.org/standards/Standards
https://www.w3.org/participate/Participate
/Consortium/membershipMembership
https://www.w3.org/Consortium/About W3C
/Consortium/mission.htmlWeb for All
IMG-ALT Header link
https://www.w3.org/WAI/Accessibility
https://www.w3.org/International/Internationalization
https://www.w3.org/Security/Web Security
https://www.w3.org/Privacy/Privacy
https://www.w3.org/standards/Web and Industry
IMG-ALT Header link
https://www.w3.org/auto/Automotive and Transportation
https://www.w3.org/tv/Entertainment (TV and Broadcasting)
https://www.w3.org/publishing/Publishing
https://www.w3.org/Payments/Web Payments
https://www.w3.org/2013/data/Web of Data
https://www.w3.org/Telco/Web and Telecommunications
https://www.w3.org/WoT/Web of Things
https://www.w3.org/groups/W3C Work Groups
IMG-ALT Header link
/Consortium/cepc/Code of Ethics and Professional Conduct
https://www.w3.org/Guide/Participant guidebook
/community/groups/W3C Community Groups
https://www.w3.org/Help/Account/Get a W3C Account
https://www.w3.org/participate/Dev Resources
IMG-ALT Header link
https://www.w3.org/developers/IMG-ALT W3C Developers
A-TITLE W3C Developer Avenue
https://www.w3.org/api/API
IMG-ALT API
A-TITLE W3C API
https://validator.w3.org/External Validators
/2009/cheatsheet/W3C cheatsheet
https://www.w3.org/Status.htmlMore Open Source Software
https://web-platform-tests.org/External Web Platform Tests
A-TITLE Open Web Platform testing
https://www.edx.org/school/w3cxExternal W3Cx (Training)
A-TITLE MOOCs from W3C on edX
https://www.w3.org/Anchor Skip
A-TITLE Skip to content (e.g., when browsing via audio)
/blog/news/archives/9851Archive
A-TITLE Archive: W3C welcomes feedback on the beta of its new website
https://beta.w3.org/External IMG-ALT Screenshot of the beta version of the homepage of the redesigned W3C website
https://github.com/w3c/w3c-web...External feedback
http://beta.w3.org/External beta release
https://w3c.studio24.net/External Subdomain redesign
/blog/2023/02/w3c-launches-bet...W3C blog post
https://www.studio24.net/blog/...External Studio 24’s blog post
/blog/news/archives/9864Text duplicate Archive
A-TITLE Archive: Call for Review: WAI-ARIA 1.2 is a W3C Proposed Recommendation
https://www.w3.org/groups/wg/ariaAccessible Rich Internet Applications Working Group
/TR/2023/PR-wai-aria-1.2-20230...Accessible Rich Internet Applications (WAI-ARIA) 1.2
/TR/wai-aria-1.1/WAI-ARIA 1.1
https://html.spec.whatwg.org/m...External Subdomain HTML
https://www.w3.org/TR/SVG2/SVG2
https://html.spec.whatwg.org/m...External Subdomain Text duplicate HTML
https://www.w3.org/TR/SVG2/Text duplicate SVG2
/WAI/intro/aria.phpWAI-ARIA Overview
/blog/news/archives/9860Text duplicate Archive
A-TITLE Archive: Upcoming W3C Workshop: Secure the Web Forward
/2023/03/secure-the-web-forward/IMG-ALT padlocks attached to a fence, picture by Parsoa Khorsand
/2023/03/secure-the-web-forward/W3C Workshop “Secure the Web Forward”
/2023/03/secure-the-web-forwar...workshop details and submission instructions
/blog/news/archives/9857Text duplicate Archive
A-TITLE Archive: Working Group Note: EPUB Type to ARIA Role Authoring Guide 1.1
/publishing/groups/epub-wg/EPUB 3 Working Group
/TR/2023/NOTE-epub-aria-author...EPUB Type to ARIA Role Authoring Guide 1.1
/blog/news/archives/9854Text duplicate Archive
A-TITLE Archive: First Public Working Draft: CSS Animations Level 2
https://www.w3.org/groups/wg/cssCSS Working Group
/TR/2023/WD-css-animations-2-2...CSS Animations Level 2
/blog/news/archives/9847Text duplicate Archive
A-TITLE Archive: First Public Working Draft: Web Animations Level 2
https://www.w3.org/groups/wg/cssText duplicate CSS Working Group
/TR/2023/WD-web-animations-2-2...Web Animations Level 2
/blog/news/archives/9849Text duplicate Archive
A-TITLE Archive: Updated Candidate Recommendations for EPUB 3.3, EPUB Reading Systems 3.3, EPUB Accessibility 1.1
https://www.w3.org/groups/wg/epubText duplicate EPUB 3 Working Group
/TR/2023/CR-epub-33-20230221/EPUB 3.3
/TR/2023/CR-epub-33-20230221/Anchor EPUB publications
/TR/2023/CR-epub-rs-33-20230221/EPUB Reading Systems 3.3
/TR/2023/CR-epub-a11y-11-20230...EPUB Accessibility 1.1
/blog/news/archives/9840Text duplicate Archive
A-TITLE Archive: Authorized Translation of WCAG 2.1 in Ukrainian
https://www.w3.org/TR/WCAG21/IMG-ALT Screenshot showing the w3c logo and the title of the W3C WCAG 2 Web Content Accessibility Guidelines
/TR/2018/REC-WCAG21-20180605/Web Content Accessibility Guidelines (WCAG) 2.1
/Translations/WCAG21-ua/Настанови з доступності вебвмісту (WCAG) 2.1
https://www.undp.org/uk/ukraineExternal United Nations Development Program (UNDP) in Ukraine
/WAI/standards-guidelines/wcag...WCAG 2 Translations
https://www.w3.org/WAI/WAI
/2005/02/TranslationPolicyPolicy for W3C Authorized Translations
https://www.w3.org/blog/news/More news…
A-TITLE More News
https://www.w3.org/blog/news/feedIMG-ALT RSS
A-TITLE RSS feed for W3C home page news
/blog/news/feed/atomIMG-ALT Atom
A-TITLE Atom feed for W3C home page news
https://www.w3.org/Talks/Talks and Appearances
IMG-ALT Header link
A-TITLE More Talks…
/participate/eventscal.htmlEvents
IMG-ALT Header link
A-TITLE More Events…
https://github.com/w3ctag/meet...External W3C TAG Meeting
/2023/05/AC/Overview.htmlAC Meeting
/2023/03/secure-the-web-forward/W3C Workshop "Secure the Web Forward"
/2023/01/TPAC2023-Sponsorship.pdfTPAC 2023 - Hybrid meeting
https://www.w3.org/Consortium/Text duplicate About W3C
IMG-ALT Header link
/Consortium/factsinternational community
https://www.w3.org/TR/standards
/2023/01/pressrelease-w3c-le-l...new W3C, Inc.
/groups/other/boardBoard of Directors
https://www.w3.org/support/Donations
IMG-ALT Header link
https://www.w3.org/support/Friend of W3C
/Consortium/missionW3C mission
https://www.w3.org/developers/developer tools
https://www.w3.org/blog/W3C Blog
IMG-ALT Header link
A-TITLE More Blog Entries…
/blog/2023/03/privacy-principl...Privacy Principles for the Web
/blog/2023/02/w3c-launches-bet...W3C launches beta of its new website
https://koalie.blog/External Subdomain Coralie Mercier
/blog/2023/01/farewell-karen-m...Farewell Karen Myers, W3C Business Development Leader Extraordinaire
/Consortium/Recruitment/Jobs and fellowship at W3C
IMG-ALT Header link
/Consortium/Member/Testimonial/Featured W3C Member
IMG-ALT Header link
A-TITLE Read all Member testimonials
/WAI/videos/standards-and-bene...Web Accessibility and W3C standards (Video)
IMG-ALT Header link
/WAI/videos/standards-and-bene...IMG-ALT Thumbnail of Web Accessibility and W3C Standards Video
https://www.w3.org/Home
https://www.w3.org/standards/Text duplicate Standards
https://www.w3.org/participate/Text duplicate Participate
/Consortium/membershipText duplicate Membership
https://www.w3.org/Consortium/Text duplicate About W3C
/Consortium/contactContact
https://www.w3.org/Help/Help and FAQ
/Consortium/sponsor/Sponsor / Donate
/Consortium/siteindexSite Map
https://lists.w3.org/Archives/...External Feedback
https://twitter.com/W3CExternal IMG-ALT Twitter
A-TITLE Follow W3C on Twitter
https://www.w3.org/World Wide Web Consortium
/Consortium/Legal/ipr-noticeAnchor liability
/Consortium/Legal/ipr-noticeAnchor trademark
/Consortium/Legal/copyright-so...permissive document license
A-TITLE W3C Software and 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 0.16 seconds.
This page only loads 3 CSS files. That's ok.
This page only loads 2 JavaScript files. That's good!
The file size of the HTML document is fine (30 kB).

HTTP Response Header

NameValue
dateWed, 29 Mar 2023 14:56:00 GMT
content-typetext/html; charset=utf-8
content-length8083
connectionkeep-alive
content-locationHome.html
last-modifiedTue, 28 Mar 2023 13:45:09 GMT
etag"7874-5f7f6115ee340-gzip"
cache-controlmax-age=600
expiresWed, 29 Mar 2023 15:05:00 GMT
varyAccept-Encoding
content-encodinggzip
x-backendwww-mirrors
x-request-id7af05004def84131
strict-transport-securitymax-age=15552000; includeSubdomains; preload
content-security-policyupgrade-insecure-requests
cf-cache-statusHIT
accept-rangesbytes
set-cookie247 Characters
servercloudflare
cf-ray7af8f4ff7d749bb2-FRA
alt-svch3=":443"; ma=86400, h3-29=":443"; ma=86400
statuscode200
http_versionHTTP/1.1

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 480,365 referring domains.
This page has 2,763,821,468 backlinks.
This page has backlinks from 234,976 different ip addresses.
Facebook popularity
(Somewhat important)
The page has 10210 shares and comments on Facebook.
Listed on Webwiki
(Nice to have)
This website is listed on Webwiki.

Robots.txt

#
# robots.txt for http://www.w3.org/
#
# $Id: robots.txt,v 1.87 2022/06/27 21:43:11 kahan 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: /Bugs/
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: /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
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.

Most important keywords

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

KeywordResultRecheck
W3C75%Check
Web70%Check
Wide Web65%Check
World Wide Web63%Check
Wide Web Consortium63%Check
web standards62%Check
World Wide Web Consortium62%Check
W3C standards60%Check
World Wide58%Check
Web Accessibility57%Check

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