w3.org

.org toplist crawl dns

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 588 ms crawled 2026-05-18

US · 104.18.23.19 · AS13335 Cloudflare, Inc.

Reputation 100/100

Classifying

HTML metadata

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.
Language: en

Open Graph

url: https://www.w3.org/
title: W3C
site name: 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.

Technology

CDN: Cloudflare

Social

Registration

Registrar

Gandi SAS

Created

1994-07-06

Expires

2029-07-05 1142 days left

Updated

2025-05-28

Name servers

jamie.ns.cloudflare.com
pranab.ns.cloudflare.com

DNS records live

NS

jamie.ns.cloudflare.com
pranab.ns.cloudflare.com

MX

5 pan.w3.org
5 puck.w3.org

TXT

Show 6 TXT records

google-site-verification=dS4IjfXgopxupUFDAqg3wk94IIZ2GuQ-jW4wiLm69Rg
853C844562
ca3-d6556337888945edac9c159a068c46a2
google-site-verification=5TpwKtmzdpa5fntQgKHY96mTJ3FiSn9fGp07XKxFsMk
google-site-verification=CZkSL9bXgKDxRmeDnAQorwhaQy3Ji1vTn36bBn5rL-E
google-site-verification=cu9dn6ytlndLOV87MLxedTHxoKTRKk0dUf_jXK8OsTc

Email authentication strong

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

softfail (~all)

DMARC

v=DMARC1; p=reject; rua=mailto:ade5335604f1484dba5c0b11b27d7fce@dmarc-reports.cloudflare.net,mailto:dmarc-rua@w3.org; ruf=mailto:dmarc-ruf@w3.org; fo=1;

policy: reject (enforced)

DKIM

s1: v=DKIM1; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAq/RSaWX8Oux/DNrUexR+ZA2kOdbgzUS3WwVLBC34kDUCIA5/v+FHiUEIYeSBv1f5E/kVmVI8UboOTEIlFhDCf…

selectors probed

Certificate (current)

WE1

from 2026-05-11 to 2026-08-09

Expires in 81 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 80/100 Checked live page: https://www.w3.org/

present

strict-transport-security
content-security-policy
x-content-type-options

findings

missing frame protection
missing Referrer Policy
missing Permissions Policy

Header values

x-content-type-options: nosniff
content-security-policy: frame-ancestors 'self' https://cms.w3.org/ https://cms-dev.w3.org/; upgrade-insecure-requests
strict-transport-security: max-age=15552000; includeSubdomains; preload

Links to (1)

github.com×4