FacebookBot
The older Meta crawler, documented as training language models for products like speech recognition. Largely superseded by meta-externalagent for AI collection but still active and still worth a robots.txt line if you are opting out of Meta training.
Verification
Operator documentation: https://developers.facebook.com/docs/sharing/webmasters/web-crawlers
A user agent is a claim, not a proof: any client can send any name. Where an operator publishes IP ranges, a reverse lookup is the only way to tell a real visit from an impersonation.
Seen by Baseline
Requests from this bot across sites tracked by Baseline, last 30 days. Aggregated over - sites, never reported per site.
Last updated 2026-09-04. Written and maintained by Baseline Labs.