simonwillison.net

Observed Jul 21, 2026, 19:58 UTC (1d ago). Every field below was attested with an Ed25519 signature at scan time. Catalog observation, re-checked on rotation — watch it for 5-minute checks.

Verify this receipt yourself + Watch this domain

Up right now

Runs onCloudflare

Email byGoogle Workspace

Secured byGoogle Trust Services

Registered with123-Reg Limited

Also usesGoogle Search Console

IPv6 · 1 subdomain · push_legacy

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

INFRASTRUCTURE MAPwhat simonwillison.net actually stands on - every host below is a signed observation

simonwillison.net

A / AAAA

172.67.136.172104.21.56.2062606:4700:3036::ac43:88ac2606:4700:3035::6815:38ce

Cloudflareserves the site

nash.ns.cloudflare.comzita.ns.cloudflare.com

cloudflare.comanswers its DNS

aspmx.l.google.comaspmx2.googlemail.comaspmx3.googlemail.comaspmx4.googlemail.com+3 more

Google Workspacereceives its email

TLS

simonwillison.net

Google Trust Servicesissued its certificate

DNS Records

A 2

172.67.136.172
104.21.56.206

AAAA 2

2606:4700:3036::ac43:88ac
2606:4700:3035::6815:38ce

MX 7

1aspmx.l.google.com
10aspmx2.googlemail.com
10aspmx3.googlemail.com
10aspmx4.googlemail.com
10aspmx5.googlemail.com
5alt1.aspmx.l.google.com
5alt2.aspmx.l.google.com

TXT 3

google-site-verification=8GB3C6bWThvLDooMmCFAeCFKkOk_7g5ceMdre2ReNT4
openai-domain-verification=dv-JhuPPoSWBBabWminrtBHji7Y
v=DMARC1; p=none; pct=100; rua=mailto:postmaster@simonwillison.net;

NS 2

nash.ns.cloudflare.com
zita.ns.cloudflare.com

SOA 1

nash.ns.cloudflare.com dns.cloudflare.com

TLS Certificates (3)

Common Name	Issuer	Expires
`simonwillison.net`	C=US, O=Google Trust Services, CN=WE1	Wed, 23 Sep 2026 04:27:06 +0000
`WE1`	C=US, O=Google Trust Services LLC, CN=GTS Root R4	Tue, 20 Feb 2029 14:00:00 +0000
`GTS Root R4`	C=BE, O=GlobalSign nv-sa, 2.5.4.11=Root CA, CN=GlobalSign Root CA	Fri, 28 Jan 2028 00:00:42 +0000

Subdomains (1)

screenshots.simonwillison.net

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 simonwillison.net. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_00eb1b686f9f3f01
Output Hash: 3c0604f76d174e17f894c80183b6ee8d2152ac8ab3df4d2d6b9b2ab5447417bd
Signature: ed25519:1123bd4008cebc6aedb1309169cc314130046733e92a86205ddcae7067730e9b8459c0cf8f9d02273e781bbce701a78c6b8a2e25a8492466f2e976b9bb528e0e
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

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