PerplexityBot

ai-crawlersearch-engine PerplexityBot\/

Perplexity AI web crawler for search

About this crawler

PerplexityBot is a web crawler identified by the regular-expression pattern PerplexityBot\/ in the User-Agent request header. It is categorised as ai-crawler, search-engine. Use the regex above to detect, log, allow, or block PerplexityBot traffic in your web server, CDN edge rules, or robots.txt.

Block-rate · top 25k sites

4.8%
latest snapshot
2026-06-04
matched key: PerplexityBot
2026-05-012026-06-045.9%

Technical details

Name
PerplexityBot
Pattern
PerplexityBot\/
Tags
ai-crawler, search-engine
Reference
https://docs.perplexity.ai/docs/perplexitybot
Added
2024/03/14
rDNS suffixes
.perplexity.ai
Instances
1 known sample(s)

rDNS verification (FCrDNS)

Verify a request is genuinely PerplexityBot with forward-confirmed reverse DNS: the client IP's PTR record must end in one of the suffixes below and a forward A/AAAA lookup of that hostname must return the same IP. UA strings alone are spoofable; FCrDNS is not.

Sample User-Agent strings

Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; PerplexityBot/1.0; +https://perplexity.ai/perplexitybot)

Block this crawler

robots.txt — disallow PerplexityBot:

User-agent: PerplexityBot Disallow: /

Apache .htaccess — return 403:

RewriteEngine On RewriteCond %{HTTP_USER_AGENT} PerplexityBot\/ [NC] RewriteRule .* - [F,L]

Nginx — return 403 inside a server block:

if ($http_user_agent ~* "PerplexityBot\\/") { return 403; }
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