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Agent reference · Training crawler

FacebookBot (retired)

Retired: Meta no longer lists FacebookBot. Old visits still show under this name.

Vendor
Meta
Agent type
Training crawlerCollect pages to train AI models. Blocking one keeps your pages out of future training, not out of answers.
Can be verified by
Can't be verifiedThe vendor publishes nothing a visit can be checked against. A visitor using this name can be named, never proven.
How sure we are
DocumentedThe vendor's own documentation describes this agent.
Last reviewed
Vendor documentation
developers.facebook.com (opens in a new tab)

Tokens to look for

User-Agent tokens

Appear in the User-Agent header of its requests.

  • FacebookBot

robots.txt tokens

No robots.txt token is documented for it.

Check a visitor claiming to be FacebookBot (retired)

We've filled in its token. Paste the full User-Agent from your logs and the address it came from for a real answer.

Paste the full User-Agent header from your logs. A single token such as GPTBot works too.

Optional

IPv4 or IPv6, as your logs show it. Used only for this check and never stored. Without it, a claim can only come back as can't be verified.

What this means for your site

FacebookBot (retired) gathers pages for model training. Allowing it is a choice about future models, not about whether assistants can cite you today: that is the search crawlers' job.

See whether AI agents can find your product, use it and, soon, pay for it.

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