w3.org
w3.org describes itself as "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…". It was registered in 1994, served from Toronto, Canada. It has a valid HTTPS certificate, 3 of 6 common security headers.
What is w3.org about?
The words appearing most often on the homepage, excluding common filler, are a rough indication of subject matter rather than a description of the business:
- consortium ×7
- standards ×7
- world ×5
- members ×5
- wide ×4
- accessibility ×4
- tpac ×4
- board ×4
- blog ×4
- organizations ×3
Does w3.org publish the usual trust pages?
Found: about, contact. Not found at the usual addresses: privacy, terms. These were checked at conventional paths only, so a site using different URLs may publish them elsewhere.
How does w3.org compare with other domains analysed here?
Measured against the 121 domains in this index. This is a small, self-selected sample — the domains people happened to look up — not a representative sample of the web.
| Response time | Faster than 90% of them (median 790ms) |
|---|---|
| Security headers | More than 92% of them |
| Domain age | Older than 98% of them |
Related domains in this index
Analysed domains sharing the same network (AS13335 Cloudflare, Inc.):
- cloudflare.com
- stackoverflow.com
- npmjs.com
- digitalocean.com
- postman.com
- quikconsole.com
- bettingages.com
- cookiesforlove.com
Sharing a network means sharing a host or CDN. It implies nothing about a relationship between the sites themselves.
Other analysed domains served from the same country:
- netlify.com
- banneradsites.com
- realestatefather.com
- cookape.com.in
- cruzdid.com
- techaudi.com
- calculatewhatever.com
- intointent.com
When was w3.org registered?
w3.org was registered on 6 July 1994, which makes it about 32 years old.
A registration this old means the domain has been renewed repeatedly, which costs money every year and is not something abandoned or disposable projects tend to do.
The registrar of record is Gandi SAS.
Registration runs until 5 July 2029.
The domain carries 2 registry locks, which blocks unauthorised transfer or deletion.
| Registered | 6 July 1994 |
|---|---|
| Expires | 5 July 2029 |
| Registrar | Gandi SAS |
| Registry status | client delete prohibited, client transfer prohibited |
Where is w3.org hosted?
The first address resolves to infrastructure in Toronto, Canada.
The network is operated by Cloudflare, Inc. (AS13335 Cloudflare, Inc.).
Hosting location describes where the responding server sits, not where the business is. A CDN will report its nearest edge rather than the origin.
What is w3.org running on?
w3.org exposes 1 identifiable technology: Cloudflare.
Cloudflare sits in front of the origin, so the server header, IP addresses and response timing describe the edge rather than the machine actually running the site.
- Cloudflare
How does the homepage respond?
The server answered with HTTP 200 over HTTPS.
At 120ms to first byte this response is fast for a homepage measured from a single European location.
The HTML weighs 48KB, which is ordinary for a homepage.
The HTML is compressed with gzip.
| Server header | cloudflare |
|---|---|
| Compression | gzip |
| Page size | 48,814 bytes |
| Declared language | en |
| Mobile viewport | declared |
What does the homepage say about itself?
The title is only 3 characters, which is short enough that it probably is not describing the page so much as naming it.
The meta description is 184 characters and will be cut short in most result layouts.
6 of 10 images carry no alt attribute, which leaves them unreadable to screen readers and uninterpretable to image search.
| Title | W3C (3 chars) |
|---|---|
| Meta 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. (184 chars) |
| H1 | Making the web work (1 on the page) |
| Canonical | not set |
| Open Graph title | W3C |
| Headings / images | 11 H2s, 10 images (6 without alt text) |
Is w3.org served over a valid certificate?
The HTTPS certificate is issued by Google Trust Services and is valid until 2026-12-05, which is 61 days from the date of this check. It covers 2 hostnames.
- w3.org
- *.w3.org
The certificate has 61 days left to run.
It covers 2 hostnames, so it was issued for this site specifically.
Which security headers does it set?
3 of 6 are set (HSTS, Content Security Policy, X-Content-Type-Options). Absent: X-Frame-Options, Referrer-Policy, Permissions-Policy.
| Header | Set | Value |
|---|---|---|
| HSTS | yes | max-age=15552000; includeSubdomains; preload |
| Content Security Policy | yes | frame-ancestors 'self' https://cms.w3.org/ https://cms-dev.w3.org/; upgrade-insecure-requests |
| X-Content-Type-Options | yes | nosniff |
| X-Frame-Options | no | — |
| Referrer-Policy | no | — |
| Permissions-Policy | no | — |
How is DNS configured for w3.org?
| IP addresses | 104.18.22.19, 104.18.23.19, 2606:4700::6812:1613, 2606:4700::6812:1713 |
|---|---|
| Reverse DNS | 104.18.22.19, 104.18.23.19 |
| Name servers | pranab.ns.cloudflare.com, jamie.ns.cloudflare.com |
| Mail (MX) | puck.w3.org (pri 5), pan.w3.org (pri 5) |
| SPF | v=spf1 mx ip4:34.238.48.92 ip4:34.199.101.240 ip6:2600:1f18:7d7a:2700::/56 include:_spf.google.com ~all |
| TXT records | 8 |
w3.org resolves to 4 addresses, which indicates load balancing or a CDN rather than a single origin server.
Mail is handled by 2 exchangers.
An SPF record is published, giving receiving servers a rule for which hosts may send as this domain.
Reverse DNS resolves to 104.18.22.19, 104.18.23.19, which usually names the hosting provider.
Who runs DNS and mail for w3.org?
DNS is operated by Cloudflare rather than self-hosted name servers.
Mail exchangers point at hosts that do not match any major provider, which usually means self-hosted or niche-provider mail.
The domain publishes AAAA records and accepts connections over IPv6.
What else is worth noting about w3.org?
1 of 1 externally hosted scripts carry no subresource integrity hash. If one of those hosts were compromised, the replacement script would run with full access to the page.
What has changed on w3.org?
This domain has been checked 2 times. Only checks where something actually moved are recorded, so each row below is a real change rather than a repeat measurement.
| Checked | HTTP | Response | IP | Headers |
|---|---|---|---|---|
| 4 Oct 2026 | 200 | 120ms | 104.18.22.19 | 3/6 |
| 4 Oct 2026 | 200 | 134ms | 104.18.22.19 | 3/6 |
Changes recorded at the most recent check:
- name servers: jamie.ns.cloudflare.com,pranab.ns.cloudflare.com → pranab.ns.cloudflare.com,jamie.ns.cloudflare.com
- mail servers: pan.w3.org (pri 5),puck.w3.org (pri 5) → puck.w3.org (pri 5),pan.w3.org (pri 5)
Can w3.org be spoofed in email?
DMARC is set to reject, the strictest setting: mail that fails authentication is refused outright. This is the configuration that actually stops domain spoofing.
CAA records restrict certificate issuance to 6 named authorities (issue ssl.com, issuewild comodoca.com, issuewild digicert.com; cansignhttpexchanges=yes, issuewild letsencrypt.org), so no other CA should be able to issue for this domain.
The zone is not DNSSEC-signed. That is still the norm for most domains, but it means DNS answers cannot be cryptographically verified.
What does robots.txt allow?
robots.txt is 3,812 bytes and names 2 user-agent groups. It does not blanket-disallow general crawlers.
No sitemap is declared in robots.txt.
AI crawler policy
robots.txt names no AI crawlers specifically, so they fall under whatever rule
applies to User-agent: *.
What structured data does the homepage publish?
No JSON-LD or microdata was found on the homepage.
What does w3.org load from third parties?
The homepage loads no resources from third-party hosts at all, which is rare and means visiting it tells no other company that you did.
No cookies are set on first load.
The page links or refers to GitHub.
Does w3.org settle on one address?
Plain HTTP redirects to HTTPS, so visitors who type the bare address still land on the secure version.
Both w3.org and www.w3.org answer with 200 and neither redirects to the other. Search engines therefore see two complete copies of the site, and link equity is split between them unless a canonical tag resolves it.
How easily can w3.org be crawled?
No readable sitemap was found, so crawlers have to discover every page by following links.
A deliberately invalid URL correctly returns HTTP 404, so missing pages will not be indexed.
What tracking does w3.org run?
No analytics or advertising trackers were detected on the homepage of w3.org, which is unusual for a commercial site.
How does w3.org look when shared?
All five social preview tags are present, so links shared to social platforms and chat apps will render with a title, description and image.
How are images, fonts and scripts handled?
10 images on the homepage, 6 of them lazy-loaded (60%).
All image references use JPEG, PNG or GIF. WebP or AVIF typically cut image weight substantially at the same visual quality.
The page pulls 3 external stylesheets and 1 external script, with 0 carrying defer or async.
Responses carry Cloudflare edge headers, so content is served from a CDN rather than straight from the origin.
Is w3.org accessible and current?
The page uses 6 landmark elements and 7 ARIA attributes.
Can search engines index w3.org?
Nothing on the homepage prevents indexing: no noindex is set in the robots meta tag or the X-Robots-Tag header.
No canonical URL is declared, which leaves duplicate addresses of this page to be resolved by the search engine.
The homepage carries 92 internal and 2 external links across 2 outside hosts.
Visible text makes up 10.4% of the HTML.
How is w3.org delivered?
The HTML is served with Cache-Control: public, s-maxage=7776000.
HTTP/3 is advertised via alt-svc, so modern browsers will upgrade to QUIC after the first visit.
Frequently asked questions
Does w3.org set the usual HTTP security headers?
It sets 3 of 6. The ones not present are: X-Frame-Options, Referrer-Policy, Permissions-Policy.
Does w3.org allow AI crawlers?
robots.txt names no AI crawler specifically, so they fall under the wildcard rule, which does not disallow them.
What is w3.org built with?
The homepage exposes these fingerprints: Cloudflare. A site behind a CDN or rendered server-side may use more than it reveals.
Where does this data come from?
Every figure was measured by our own server on 4 October 2026: DNS lookups, one HTTPS request to the homepage, a TLS handshake and a request for robots.txt. No third-party SEO API is involved.
Is any of this traffic or authority data?
No. Traffic, authority and ranking figures cannot be measured by inspecting a domain, only modelled. Everything here is a direct observation.
I own w3.org and want this page removed.
Email hello@quikconsolecom.net from an address at the domain and the report will be taken down. It only ever shows what the domain already serves publicly.
Analysed 4 October 2026. Analyse another domain →