FacebookBot
by Meta
Social preview UA + IP range
Fetches a page to build the link preview card shown when someone shares it.
FacebookBot is an AI-related crawler operated by Meta.
What it usually means
Meta crawled this page as part of its AI crawling.
How to identify it
User-Agent tokens
facebookbot robots.txt stanza
User-agent: FacebookBot How it's verified
Published IP-range endpoints
Currently loaded ranges (sample) Refreshed Sep 4, 2026
163.77.136.0/232a03:2880:f37a::/48185.60.217.0/24157.240.14.0/242a03:2880:f366::/482a03:2880:f085::/4857.145.6.0/2357.145.16.0/2357.141.4.0/2457.144.186.0/23 1 IP source configured
Sources
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