HTTP/2 301
date: Sat, 11 Oct 2025 16:13:26 GMT
content-type: text/html; charset=iso-8859-1
location: https://www.w3.org/XML/Group/9705/namespace.htm
cf-ray: 98cfa5094f53ad8b-BLR
cache-control: max-age=21600
expires: Sat, 11 Oct 2025 22:13:26 GMT
x-backend: www-mirrors
x-request-id: 98cfa5094f53ad8b
strict-transport-security: max-age=15552000; includeSubdomains; preload
content-security-policy: frame-ancestors 'self' https://cms.w3.org/ https://cms-dev.w3.org/; upgrade-insecure-requests
cf-cache-status: EXPIRED
set-cookie: __cf_bm=2zD.OP_XHXf3tgIgSz0H3EfNrRFdKCa4b9bVDVuQXgg-1760199206-1.0.1.1-NugKTzHMEiVd63M3BDFMMOIu7bmbYZBaSSiMdyKfo6xFUDWO4neC.CMErxiUHlJ0HmfDQRlcL_PGVJ6YpOfMMj.8ZVA4QkoeIXR1DHRqQwQ; path=/; expires=Sat, 11-Oct-25 16:43:26 GMT; domain=.w3.org; HttpOnly; Secure; SameSite=None
vary: Accept-Encoding
server: cloudflare
alt-svc: h3=":443"; ma=86400
HTTP/2 303
date: Sat, 11 Oct 2025 16:13:27 GMT
content-length: 0
location: https://auth.w3.org/?url=https%3a%2f%2fwww.w3.org%2FXML%2FGroup%2F9705%2Fnamespace.htm
cf-ray: 98cfa50eff94ad8b-BLR
x-request-id: 98cfa50eff94ad8b
strict-transport-security: max-age=15552000; includeSubdomains; preload
content-security-policy: frame-ancestors 'self' https://cms.w3.org/ https://cms-dev.w3.org/; upgrade-insecure-requests
set-cookie: w3csess=; path=/; Domain=w3.org; Max-Age=0; HttpOnly; secure
cache-control: no-cache
www-authenticate: w3state session
cf-cache-status: MISS
vary: Accept-Encoding
server: cloudflare
alt-svc: h3=":443"; ma=86400
HTTP/2 302
date: Sat, 11 Oct 2025 16:13:28 GMT
content-type: text/html; charset=utf-8
location: https://auth.w3.org/login
cf-ray: 98cfa5152a34c7cf-BLR
request-id: 5e410afd-fd7c-44e5-9961-068bd463fa21
expires: Sat, 11 Oct 2025 16:13:28 GMT
set-cookie: PHPSESSID=ghou9i3f0fol4po5landonpuct; path=/; secure; httponly; samesite=lax
cache-control: no-cache
content-security-policy: frame-ancestors 'none'; upgrade-insecure-requests
cf-cache-status: DYNAMIC
server: cloudflare
alt-svc: h3=":443"; ma=86400
HTTP/2 200
date: Sat, 11 Oct 2025 16:13:28 GMT
content-type: text/html; charset=UTF-8
content-encoding: gzip
request-id: c10e3bd1-881c-4afc-9ec2-186d1370c6b9
expires: Sat, 11 Oct 2025 16:13:28 GMT
cache-control: no-cache
content-security-policy: frame-ancestors 'none'; upgrade-insecure-requests
cf-cache-status: DYNAMIC
server: cloudflare
cf-ray: 98cfa51bbd5ac7cf-BLR
alt-svc: h3=":443"; ma=86400
W3C Authentication Platform | W3C
Skip to content
W3C Authentication Platform
Please log in using your W3C Account.
If you have registered one or several second factors, you'll be prompted for them as a second step.
Don't have an account? Create one.