w3.org

Observed 2026-07-15T00:37:05.487Z (7h ago). Every field below was attested with an Ed25519 signature at scan time.

Guarded by a firewall

Runs onCloudflare

Email byGoogle (SPF sender)

Registered withGandi SAS

Also usesGoogle Search Console

IPv6 · 11 subdomains · non_profit

Every line above is a signed observation. Check the math at the bottom of the page.

INFRASTRUCTURE MAPwhat w3.org actually stands on - every host below is a signed observation

w3.org

A / AAAA

104.18.22.19104.18.23.192606:4700::6812:16132606:4700::6812:1713

Cloudflareserves the site

jamie.ns.cloudflare.compranab.ns.cloudflare.com

cloudflare.comanswers its DNS

puck.w3.orgpan.w3.org

Google (SPF sender)receives its email

HTTPS probe

bot_blocked Blocked our probe (WAF / bot protection) 403 blocked by cloudflare - bot protection active

HTTP status403

Servercloudflare

TLS protocolHTTP/2

TLS issuernot observed

Behind Cloudflareyes

Response time27 ms

DNS resolutionNOERROR

Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".

DNS Records

A 2

104.18.22.19
104.18.23.19

AAAA 2

2606:4700::6812:1613
2606:4700::6812:1713

MX 2

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

TXT 9

v=spf1 mx ip4:34.238.48.92 ip4:34.199.101.240 ip6:2600:1f18:7d7a:2700::/56 include:_spf.google.com ~all
google-site-verification=CZkSL9bXgKDxRmeDnAQorwhaQy3Ji1vTn36bBn5rL-E
google-site-verification=dS4IjfXgopxupUFDAqg3wk94IIZ2GuQ-jW4wiLm69Rg
ca3-d6556337888945edac9c159a068c46a2
google-site-verification=cu9dn6ytlndLOV87MLxedTHxoKTRKk0dUf_jXK8OsTc
anthropic-domain-verification-xwqnyg=KpEpoEkHUmXnsWC0mhnfKFBrr
google-site-verification=5TpwKtmzdpa5fntQgKHY96mTJ3FiSn9fGp07XKxFsMk
853C844562
v=DMARC1; p=reject; rua=mailto:ade5335604f1484dba5c0b11b27d7fce@dmarc-reports.cloudflare.net,mailto:dmarc-rua@w3.org; ruf=mailto:dmarc-ruf@w3.org; fo=1;

NS 2

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

SOA 1

jamie.ns.cloudflare.com dns.cloudflare.com

CAA 14

issue comodoca.com
issuewild digicert.com; cansignhttpexchanges=yes
issue digicert.com; cansignhttpexchanges=yes
issuewild letsencrypt.org
issue pki.goog; cansignhttpexchanges=yes
issue letsencrypt.org
issuewild ssl.com
issuewild comodoca.com
issue sectigo.com
iodef mailto:sysreq@w3.org

TLS Certificates (0)

None.

Subdomains (11)

The proof

Signed at scan time. Check the math yourself. Every line above is part of one signed observation. Re-hash it and check the Ed25519 signature in your own browser; nothing leaves your machine.

Verify this receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for w3.org. It updates itself. It attests a signed observation - not that the site is safe.

<a href="https://domaindrift.io/t/w3.org">
  <img src="https://domaindrift.io/badge/w3.org.svg"
       width="300" height="64" alt="DomainDrift signed observations for w3.org">
</a>

Ed25519 Receipt

Receipt ID: ed18fda4-bf84-45a8-8832-d7f06d382a2b
Output Hash: 55aafa5cd92ba1e06ba4d7f28a5ff9af8fe9b0975d833624337a8237451cacff
Signature: ed25519:4e268171f3b1d62f38a14478a19ad71053d41f56df1e0a48a01bfd1cd6ed4fe2bad490c77ed89d8ac14716c094961f2141849722a15051fd4bbe03e2b6f68e0e
Public Key: ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/w3.org