Perplexity

AI assistants

Perplexity-User

Visits a page when a Perplexity user asks a question that needs it.

May skip robots.txt
User agent token
Perplexity-User
Operator
Perplexity
Verification
Published IP list

What an AI assistant fetcher does

An assistant fetcher visits only when someone asks an AI assistant a question that needs your page. Each visit stands for a real person, often one who is about to click through, so blocking it usually costs you readers.

Perplexity says it generally ignores robots.txt, because a person started the request.

Block or allow Perplexity-User in robots.txt

Add one of these to the robots.txt file at the root of your domain. Crawlers read it before they fetch anything else.

Block Perplexity-User

User-agent: Perplexity-User
Disallow: /

Allow Perplexity-User

User-agent: Perplexity-User
Allow: /

More from Perplexity

Browse all 66 crawlersAI and search bots from 16 companies, with the rules to block or allow each one.

Questions, answered.

Perplexity-User is an AI assistant fetcher run by Perplexity. Visits a page when a Perplexity user asks a question that needs it.

Not always. Perplexity-User fetches pages for a person, and Perplexity says robots.txt may not apply. Perplexity says it generally ignores robots.txt, because a person started the request.

Add "User-agent: Perplexity-User" and "Disallow: /" to your robots.txt. Since robots.txt may not stop it, block it at your firewall or server too.

Check the request's IP address against the list Perplexity publishes. A user agent alone proves nothing, since any script can copy it.

Indirectly. Perplexity-User opens your page because a person asked about it, and the answer can link back to you.

Usually not. Each visit stands for a person asking about your page, so blocking Perplexity-User turns readers away.

In its own documentation at https://docs.perplexity.ai/guides/bots. Every fact on this page comes from there.

Still have questions? We're happy to help.

See which bots really read your site.

NoirTrack counts Perplexity-User and every other bot apart from real visitors, and its firewall can block them before they reach your pages.

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Free 14-day trial, no credit card. The server SDK also sees bots that never run JavaScript.