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Grade AR-057Answer engines

Perplexity sources and freshness

PerplexityBot is designed to surface and link websites in Perplexity's search results and, per Perplexity, is not used to crawl content for AI foundation models; Perplexity-User visits pages to answer a user's question and generally ignores robots.txt because a user initiated the request. Blocking PerplexityBot therefore removes a site from Perplexity's index but not from user-initiated fetches.

Sources

  1. 1
    Perplexity · 2026Perplexity Crawlersdocs.perplexity.ai

AGrade A: official documentation or a standard. A grade describes the provenance of the sources above; it is not a probability that a change will work. The effect basis says how the size of the effect is known: measured by a study, taken from an industry report, only documented without a size, or not quantified.

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