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perplexity.ai

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

Security headers: A 100/100 (rank #9 of 461) · TLS: TLSv1.3 · Cert expires in 89 days (rank #296 of 459 soonest) · Response: 96.5 ms (rank #114 of 446)
Certificate valid for 89 more days (until Jan 29 04:40:37 2027 GMT).

TLS certificate

FieldValue
IssuerGoogle Trust Services
Subject CNperplexity.ai
Valid untilJan 29 04:40:37 2027 GMT
Days left89
TLS versionTLSv1.3
SAN entries2

Security headers (100/100, grade A)

HeaderStatus
strict-transport-securitymax-age=31536000; includeSubDomains; preload
content-security-policydefault-src 'none'; script-src 'nonce-PtVQkq1010fOE71LTQWB4Q' 'unsafe-eval' https://challe
x-frame-optionsSAMEORIGIN
x-content-type-optionsnosniff
referrer-policysame-origin
permissions-policyaccelerometer=(),camera=(),clipboard-read=(),clipboard-write=(),geolocation=(),gyroscope=(
none missing 🎉

Availability & performance

FieldValue
Availability100% (3/3 probes)
Avg response96.5 ms
Fastest / slowest89.5 / 104.1 ms
HTTP status403 (https)
Servercloudflare

DNS & robots.txt

FieldValue
A records104.18.27.48, 104.18.26.48
Nameserversemerson.ns.cloudflare.com, jessica.ns.cloudflare.com
MX records5
robots.txtpresent (2 sitemap refs, 12 disallow rules)

How perplexity.ai compares

SiteHeadersScoreCert days leftms
mistral.aiA10067129.8
openrouter.aiA1008774.5
openai.comB834441.4
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.