Every AI bot · Perplexity

Perplexity-User

Perplexity's agent that fetches a page when someone asks its AI assistant about it.

In robots.txt: User-agent: Perplexity-User

Named by1.7%of readable robots.txt files on the top 1M (10,053 of 600,979)

Of those, block it32.3%shut it out of the whole site (3,251 of 10,053)

Same sites, since CC-MAIN-2026-34+0.0 ptsshare of the same 394,690 sites that block it by name: 0.4% → 0.4%

Via Cloudflare's file1.8%of its blocks come from Cloudflare's ready-made robots.txt (60 of 3,251)

32.3%

30.9%

36.8%

Block the whole site: 3,251Block some paths: 3,107Name it but allow it: 3,695

Every robots.txt file on the top 1M that names Perplexity-User, by what the rules that apply to it say.

Perplexity's other bots

Sites often treat one company's bots differently, depending on what each is for.

Bot	Purpose	Files naming it	Of those, block it
PerplexityBot	Builds an AI search index	33,061	41.7%

Who does what

The highest-ranked sites on the top million in each group. Click one to see its whole robots.txt verdict.

Block it

Block some paths

Name it and allow it

Lists skip sites we don't showcase (adult content).

What this means for you: blocking Perplexity-User asks Perplexity's assistant not to fetch your pages when someone asks about them. Decide each bot on what it's for, not who runs it.