meta-externalagent

Meta · AI training crawlers · json

User-agent: meta-externalagent
Disallow: /
robots.txt tokenmeta-externalagent
User-agent containsmeta-externalagent
OperatorMeta
CategoryAI training crawlers
robots.txtobeys robots.txt (documented)
Verify byno published verification method

What it is

Meta's AI crawler, gathering training data for Llama and Meta AI. It replaced the older FacebookBot name for this purpose.

What blocking it costs you

Excluded from Meta AI training. Link previews on Facebook, Instagram and WhatsApp are unaffected — those are a different bot.

Full user-agent string

meta-externalagent/1.1 (+https://developers.facebook.com/docs/sharing/webmasters/crawler)

Allow it instead

User-agent: meta-externalagent
Allow: /

Operator documentation: https://developers.facebook.com/docs/sharing/webmasters/web-crawlers
Machine copies: json · markdown
Policies that name this crawler: allow-all · block-ai-training · block-all-ai · maximum-ai-visibility