Audit: perplexity.ai

Audited on 17 Sep 2026

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95
overall score
On-page SEO
—
Crawlability
100
TLS & security
100
Network
83
Email
100
DNS
92

The site is up · responded in 59 ms

  • Reachable 100% of the last 24 hours
  • Outages cost you traffic and rankings while they last, and they rarely happen while you are watching.
Live status: Perplexity → Email me if it goes down →

On-page SEO

Crawlability

100/100
  • ✓ robots.txt present + valid Parsed cleanly · 2 sitemap(s) declared
  • ✓ Sitemap index reachable 7 child sitemap(s)

TLS & security

100/100
  • ✓ TLS handshake succeeds
  • ✓ Certificate not expiring soon 74 days left

Network

83/100
  • ✓ Hostname resolves to an A record 104.18.27.48
  • ! Server header does not leak version

Email

100/100
  • ✓ MX records valid + reachable
  • ✓ SPF record present v=spf1 ip4:192.174.84.143 include:_spf.google.com include:mailgun.org include:sendgrid.net ~all
  • ✓ DMARC record present
  • ✓ DMARC policy enforced p=reject
  • ✓ DKIM key published selector=google, ~2352-bit

DNS

92/100
  • ✓ A records resolve
  • ✓ NS records present
  • ✓ MX records present
  • ! DNS resolvers agree on the same A record 91% of 12 resolvers agree
  • ✓ Domain registration not expiring soon 2847 days left
  • ✓ Domain is established 4y 2m 9d (2022-07-08)

What changed

Nothing has changed on perplexity.ai since we started watching it.

Certificates expire, DNS gets edited, a header goes missing in a deploy. Prove the domain is yours and we watch it on a schedule — free — and email you the moment something moves, so you hear it from us instead of from a customer.

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Subdomains discovered 🔒 Pro

159 via Certificate Transparency

We found 159 subdomains for perplexity.ai via Certificate Transparency logs.

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Tech stack detected

2 technologies · Pro: track changes over time →

Signature-based identification from the public homepage. Pattern set is fixed; nothing is sent to third parties.

CDN

  • Cloudflare

Server

  • Header value cloudflare

A certificate that expires on Tuesday should not wait until Friday. Prove a domain is yours and we check it free, once a week, emailing you anything that changed. Pro checks it once a day, looks at every host on the domain, and keeps 365 days of history — so you hear about a problem in hours rather than days.

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