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Facebook

Behaviour reference for the facebook crawler. Values are loaded directly from its core platform profile.

verified 2026-07-01

Crawler

User-Agent: facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)
official
Executes JavaScript: no
community

Cache

TTL: unknown
unverified
How to refresh: Sharing Debugger scrape
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Debugger URL: Page URL
Template from the platform profile. {url} is filled with your page URL when you open the debugger.
https://developers.facebook.com/tools/debug/?q={url}
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Field priority

community

title

og:titletitle

description

og:descriptionmeta:description

image

og:image

url

og:urllink:canonical

siteName

og:site_name

type

og:type

Truncation

Title max chars: 60
community
Description max chars: 200
community
Description max lines: 3
community

Image budget and card geometry

Summary

Hard max: 8 MB
Soft max: —
Recommended: 1200×630
Aspect / slot: 1.91:1 · cover
Formats: image/jpeg, image/png, image/webp
Crop mode: center
Slot fit: cover / center · min source width 600px

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Related: rescrape helper and rules for this platform.