lmsys.org

Observed 2026-07-13T00:01:25.284690231+00:00 (18h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onAmazon

Email byGoogle Workspace

Secured byLet's Encrypt

Also usesGoogle Search Console

push_legacy

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

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

lmsys.org

A / AAAA

216.150.1.1

Amazonserves the site

chip.ns.cloudflare.commeg.ns.cloudflare.com

cloudflare.comanswers its DNS

aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comalt1.aspmx.l.google.com+1 more

Google Workspacereceives its email

TLS

lmsys.org

Let's Encryptissued its certificate

DNS Records

A 1

216.150.1.1

MX 5

1aspmx.l.google.com
10alt3.aspmx.l.google.com
10alt4.aspmx.l.google.com
5alt1.aspmx.l.google.com
5alt2.aspmx.l.google.com

TXT 3

google-site-verification=HntMGfRyha5b7ZWDAeKD9tvFEJjR_xKFKkAkfiSKLb8
google-site-verification=mtnPEyPnIUH4M9Rti9Kn9FFT1qll0SMJWlm3VQQw52g
v=spf1 include:_spf.google.com -all

NS 2

chip.ns.cloudflare.com
meg.ns.cloudflare.com

SOA 1

chip.ns.cloudflare.com dns.cloudflare.com

TLS Certificates (3)

Common Name	Issuer	Expires
`lmsys.org`	C=US, O=Let's Encrypt, CN=YR1	Tue, 01 Sep 2026 02:02:49 +0000
`YR1`	C=US, O=ISRG, CN=Root YR	Sat, 02 Sep 2028 23:59:59 +0000
`Root YR`	C=US, O=Internet Security Research Group, CN=ISRG Root X1	Thu, 02 Sep 2032 23:59:59 +0000

Subdomains (0)

None observed.

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 lmsys.org. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: 406f12a0-62ee-4ab6-a828-248a594a2908
Output Hash: 64183bb75a70b8d24312b9b680a7478f9277a2d349c241430ce9c8f89935837d
Signature: ed25519:700e93af3009ebce8e623d7dddbbf73ac70da34bc65955781a1bb0207d3dc291374b31a5d2f2541c8b4f6675101f5ec67b6f606373976005ba32d9aa0c7f8e05
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

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