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openai.com

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

Security headers: B 83/100 (rank #54 of 461) · TLS: TLSv1.3 · Cert expires in 44 days (rank #72 of 459 soonest) · Response: 41.4 ms (rank #33 of 446)
Certificate valid for 44 more days (until Dec 15 05:59:47 2026 GMT).

TLS certificate

FieldValue
IssuerGoogle Trust Services
Subject CNopenai.com
Valid untilDec 15 05:59:47 2026 GMT
Days left44
TLS versionTLSv1.3
SAN entries2

Security headers (83/100, grade B)

HeaderStatus
strict-transport-securitymax-age=31536000; includeSubDomains; preload
x-frame-optionsSAMEORIGIN
x-content-type-optionsnosniff
referrer-policysame-origin
permissions-policyaccelerometer=(),camera=(),clipboard-read=(),clipboard-write=(),geolocation=(),gyroscope=(
content-security-policymissing

Availability & performance

FieldValue
Availability100% (3/3 probes)
Avg response41.4 ms
Fastest / slowest30.1 / 54.9 ms
HTTP status403 (https)
Servercloudflare

DNS & robots.txt

FieldValue
A records172.64.154.211, 104.18.33.45
Nameserversns1-02.azure-dns.com, ns2-02.azure-dns.net, ns3-02.azure-dns.org, ns4-02.azure-dns.info
MX records5
robots.txtpresent (1 sitemap refs, 1 disallow rules)

How openai.com compares

SiteHeadersScoreCert days leftms
perplexity.aiA1008996.5
mistral.aiA10067129.8
openrouter.aiA1008774.5
midjourney.comB838138.1
runwayml.comB8389208.4
modal.comB83135293.6
baseten.coB8375284.7
anthropic.comC6733163.9

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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.