What is PerplexityBot?
PerplexityBot is the official crawler used by Perplexity (user-agent "PerplexityBot") to fetch, index, and cite web content inside its answer-engine responses. Perplexity also operates a separate user-facing fetcher ("Perplexity-User") that retrieves pages on demand when a user asks a question. Both are controlled via robots.txt. Allowing PerplexityBot is a prerequisite for appearing as an inline citation in Perplexity answers — and because Perplexity skews to technical, research-driven B2B buyers, missing those citations disproportionately hurts complex-sale categories. Crackle PR treats PerplexityBot access as a baseline audit item at every client onboarding — B2B tech buyers are disproportionately Perplexity users, and a blocked crawler means the buyer only sees your competitor's side of the comparison.
“Perplexity is where your technical buyer fact-checks the demo. If PerplexityBot can't crawl you, the buyer doesn't see your side of the story.”
Related terms
GPTBot
OpenAI's web crawler that gathers public content used to train and ground ChatGPT.
ClaudeBot
Anthropic's web crawler that fetches public content used by Claude for training and retrieval.
Perplexity
An AI answer engine popular with technical and research-driven B2B buyers; cites sources inline.
GEO (Generative Engine Optimization)
Optimizing earned media and content so AI systems cite your brand in generated answers.
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