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anthropic.com

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

Security headers: C 67/100 (rank #139 of 461) · TLS: TLSv1.3 · Cert expires in 33 days (rank #31 of 459 soonest) · Response: 163.9 ms (rank #207 of 446)
Certificate valid for 33 more days (until Dec 4 18:42:31 2026 GMT).

TLS certificate

FieldValue
IssuerLet's Encrypt
Subject CNanthropic.com
Valid untilDec 4 18:42:31 2026 GMT
Days left33
TLS versionTLSv1.3
SAN entries1

Security headers (67/100, grade C)

HeaderStatus
strict-transport-securitymax-age=3600
content-security-policydefault-src 'self'; script-src 'self' 'unsafe-inline' https://cdn.intellimize.co https://c
x-frame-optionsSAMEORIGIN
x-content-type-optionsnosniff
referrer-policymissing
permissions-policymissing

Availability & performance

FieldValue
Availability100% (3/3 probes)
Avg response163.9 ms
Fastest / slowest148.3 / 182.0 ms
HTTP status200 (https)
Servercloudflare

DNS & robots.txt

FieldValue
A records160.79.104.10
Nameserversisla.ns.cloudflare.com, randy.ns.cloudflare.com
MX records5
robots.txtpresent (1 sitemap refs, 0 disallow rules)

How anthropic.com 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.