Meta · Other

Facebook External Hit

Facebook External Hit is Meta's crawler. This crawler handles ads, previews, and other automated fetches.

Crawler facts

OperatorMeta
User agent tokenfacebookexternalhit
Traffic typeOther
VerificationUser agent only
IP sourceMeta publishes no IP list.

What "verified" means for Facebook External Hit

Meta publishes no IP list for Facebook External Hit, so a request claiming this user agent can never be proven genuine. DataSaaS always records it as unverified.

Track it

Facebook External Hit fetches raw HTML and never runs JavaScript, so no browser tag can see it. Install the DataSaaS server-side package to record every request and verify the ones that publish IP ranges.

Read the bot-traffic setup guide

More from Meta

Meta External AgentMeta External FetcherMeta Web IndexerMeta External AdsFacebookBot

See which crawlers hit your site

DataSaaS records every AI crawler and search bot, then verifies the ones that publish IP ranges. Browse the full crawler directory.

Start free trial