AI crawler

PerplexityBot

Perplexity's search crawler.

Vendor
Perplexity
robots.txt token
PerplexityBot
Purpose
Search
Respects robots.txt
Yes, according to Perplexity's documentation
Source
Vendor documentation

What it does

Perplexity says PerplexityBot is "designed to surface and link websites in search results on Perplexity".

It says the bot is "not used to crawl content for AI foundation models", and recommends allowing it in robots.txt if you want your site to appear in Perplexity search results.

What blocking it changes

PerplexityBot is how Perplexity's answer engine indexes pages, so blocking it removes your pages from that engine's answers.

Perplexity's documentation recommends allowing PerplexityBot if you want your site to appear in its search results, so blocking it works against that.

In the Tow Center (Columbia) generative-search study, which made 1,600 observations, pages from publishers that blocked an engine's crawler were cited about half as often (35.5% against 17.7%). OpenAI honoured blocks far more than Perplexity did. The data covered OpenAI and Perplexity only. The effect is not guaranteed for your own site. See the crawler evidence for more.

robots.txt

Block it

User-agent: PerplexityBot
Disallow: /

Allow it

User-agent: PerplexityBot
Allow: /

Other crawlers from Perplexity

Check your own site

The free Chompr.io extension shows each AI search crawler's status for the page you are on.