SGSiteGraph

w3.org

W3C

Last scanned Jul 14, 2026, 1:28 PM

90

Overall score

Excellent

Summary

This website is hosted on Cloudflare. SEO is good (75/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: Meta description longer than 160 characters.

75

SEO

4 issue(s) found

100

Performance

30 ms

90

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Organization

Company details published in this site's own structured data.

GitHub

Meta tags

Title
W3C
Description
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.
Canonical
Language
en
Charset
utf-8
Viewport
width=device-width, initial-scale=1
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
W3C
og:description
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.
og:type
website
og:url
https://www.w3.org/

Twitter Card

twitter:card
summary_large_image
twitter:title
W3C
twitter:description
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.

Technologies

Detected frameworks, languages, and tools.

No technologies detected.

Hosting & CDN

Hosting provider
Cloudflare
CDN provider
Cloudflare
IP address
104.18.23.19
ASN
AS13335 (CLOUDFLARENET - Cloudflare, Inc., US)

DNS records

TypeValue
A
  • 104.18.23.19
  • 104.18.22.19
AAAA
  • 2606:4700::6812:1613
  • 2606:4700::6812:1713
MX—
TXT
  • v=spf1 -all
NS—
CAA—
CNAME—
IPv6 supportYes

TLS / SSL certificate

Version
TLS 1.3
Issuer
Google Trust Services
Subject
w3.org
Valid from
Jul 9, 2026
Valid to
Oct 7, 2026
Days until expiry
84
SAN domains
w3.org, *.w3.org

Security headers

  • Strict-Transport-SecurityEnabled
  • Content-Security-PolicyEnabled
  • X-Frame-OptionsMissing
  • X-Content-Type-OptionsEnabled
  • Referrer-PolicyMissing
  • Permissions-PolicyMissing

Compression: gzip · 1 cookie(s) observed

Content & assets

Headings

H1 1 · H2 12 · H3 4

Links

65 internal · 3 external · 0 broken

Images

9 total · 0 missing alt

Scripts / Styles

4 scripts · 3 stylesheets

JS / CSS size

19.2 KB · 0 B

Page size

51.5 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
110
sitemap.xml
Not found
URLs in sitemap
0

SEO issues

  • Meta description longer than 160 characters
  • Missing canonical link
  • No structured data (JSON-LD) found
  • sitemap.xml not found

Accessibility issues

No accessibility issues detected.

Careers

View careers page
RoleLocationPosted
W3C groups——
Technical Architecture Group (TAG)——
Get involved——
Become a Member——
Support us——
Mailing lists——
Participant guidebook——
Invited Experts——
Accessibility fundamentals——
Internationalization (i18n)——
Press releases——
Annual W3C Conference (TPAC)——
Our mission——
Contact us——
My account——
Member organizations——
Past fellows——
System Status——
W3C on Mastodon——
W3C on GitHub——

Scan details

Requested URL
https://w3.org
Final URL
https://www.w3.org/
HTTP status
200
HTTP version
HTTP/2
Response time
29 ms
HTML size
51.5 KB
Redirect chain
https://w3.org → https://www.w3.org/

Frequently asked questions

What technology does w3.org use?
We did not detect any specific technologies for w3.org in the latest scan.
Is w3.org secure (HTTPS)?
Yes. w3.org uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 7, 2026.
Who hosts w3.org?
w3.org is hosted on Cloudflare, behind Cloudflare CDN.
What is w3.org's SEO score?
w3.org scored 75/100 for SEO in the latest analysis (fair).
What is w3.org's overall website score?
w3.org has an overall SiteGraph score of 90/100, combining SEO, performance, security, and accessibility.
Is w3.org hiring?
Yes. w3.org has 20 open roles listed on their careers page.