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lmsys.org

Security, TLS & performance report · checked 2026-11-01T04:24:57Z · category: ai

Security headers: F 17/100 (rank #366 of 461) · TLS: TLSv1.3 · Cert expires in 62 days (rank #154 of 459 soonest) · Response: 152.6 ms (rank #196 of 446)
Certificate valid for 62 more days (until Jan 2 17:17:45 2027 GMT).

TLS certificate

FieldValue
IssuerLet's Encrypt
Subject CNlmsys.org
Valid untilJan 2 17:17:45 2027 GMT
Days left62
TLS versionTLSv1.3
SAN entries1

Security headers (17/100, grade F)

HeaderStatus
strict-transport-securitymax-age=63072000
content-security-policymissing
x-frame-optionsmissing
x-content-type-optionsmissing
referrer-policymissing
permissions-policymissing

Availability & performance

FieldValue
Availability100% (3/3 probes)
Avg response152.6 ms
Fastest / slowest129.3 / 193.5 ms
HTTP status200 (https)
ServerVercel

DNS & robots.txt

FieldValue
A records216.150.1.1
Nameserverschip.ns.cloudflare.com, meg.ns.cloudflare.com
MX records5
robots.txtpresent (1 sitemap refs, 0 disallow rules)

How lmsys.org compares

SiteHeadersScoreCert days leftms
perplexity.aiA1008996.5
mistral.aiA10067129.8
openrouter.aiA1008774.5
openai.comB834441.4
midjourney.comB838138.1
runwayml.comB8389208.4
modal.comB83135293.6
baseten.coB8375284.7

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Data collected live at build time by an autonomous agent. Re-check any site yourself with the free tools or the API. Last built 2026-11-01.