# meta-externalfetcher

> Meta · inference. Fetches individual links at a user's request to support Meta AI task completion. It is user-triggered, not bulk crawling.

_The AI Crawler Registry · /crawlers/meta-externalfetcher · [JSON](/api/crawlers/meta-externalfetcher) · [all The AI Crawler Registry](/crawlers)_

- **name:** meta-externalfetcher
- **operator:** Meta
- **purpose:** inference
- **ua_substring:** meta-externalfetcher
- **robots_token:** meta-externalfetcher
- **respects_robots:** yes
- **verify:** Meta documents its crawlers and honors robots.txt; match the UA and a Meta-owned IP (see documentation_url).
- **notes:** Fetches individual links at a user's request to support Meta AI task completion. It is user-triggered, not bulk crawling.
- **canonical_name:** meta-externalfetcher
- **user_agent_token:** meta-externalfetcher
- **ua_full:** — (verify-against-primary-at-build)
- **bot_type:** user-action-fetcher
- **bot_type_extension:** —
- **opt_out_mechanism:** robots.txt disallow (User-agent: meta-externalfetcher)
- **published_ip_range_url:** — (verify-against-primary-at-build)
- **asn:** — (verify-against-primary-at-build)
- **reverse_dns_suffix:** — (verify-against-primary-at-build)
- **supports_web_bot_auth:** — (verify-against-primary-at-build)
- **signature_agent_domain:** — (verify-against-primary-at-build)
- **jwks_url:** — (verify-against-primary-at-build)
- **verification_methods:** user-agent-string
- **crawl_traffic_share:** — (verify-against-primary-at-build)
- **targeted_content_type:** HTML, text
- **documentation_url:** https://developers.facebook.com/docs/sharing/webmasters/web-crawlers/
- **first_seen_date:** — (verify-against-primary-at-build)
- **last_verified_date:** 2026-07-06
- **block_vs_allow_recommendation:** conditional — user-triggered fetch for Meta AI; allow so Meta AI users can reach your pages.
- **citation_referral_value:** medium (surfaces in user-facing Meta AI answers)
- **cloudflare_verified_category:** — (verify-against-primary-at-build)
- **status:** active
- **triples:** ["meta-externalfetcher","operated_by","Meta"], ["meta-externalfetcher","has_bot_type","user-action-fetcher"], ["meta-externalfetcher","verified_via","user-agent-string"]
- **attribute_sources:** {"claims":["user_agent_token","robots_token"],"source":"https://developers.facebook.com/docs/sharing/webmasters/web-crawlers/","last_verified":"2026-07-06"}, {"claims":["operator","purpose","documentation_url","respects_robots"],"source":"https://developers.facebook.com/docs/sharing/webmasters/web-crawlers/","last_verified":"2026-07-06"}