# Diffbot-User

> Diffbot · inference

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

- **name:** Diffbot-User
- **operator:** Diffbot
- **purpose:** inference
- **ua_substring:** Diffbot-User
- **robots_token:** Diffbot-User
- **respects_robots:** yes
- **verify:** no operator-published authoritative IP-range file confirmed; verify by user-agent + edge controls. Diffbot documents the token for on-behalf-of fetches.
- **notes:** Used for requests made on behalf of human users browsing URLs through Diffbot software, as distinct from Diffbot's proactive Crawlbot. Diffbot documents both 'Diffbot' and 'Diffbot-User' as robots.txt user-agents.
- **canonical_name:** Diffbot-User
- **user_agent_token:** Diffbot-User
- **ua_full:** — (verify-against-primary-at-build)
- **bot_type:** user-action-fetcher
- **bot_type_extension:** —
- **opt_out_mechanism:** robots.txt disallow (User-agent: Diffbot-User)
- **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-match
- **crawl_traffic_share:** — (verify-against-primary-at-build)
- **targeted_content_type:** HTML, text
- **documentation_url:** https://docs.diffbot.com/docs/does-crawl-respect-robotstxt
- **first_seen_date:** — (verify-against-primary-at-build)
- **last_verified_date:** 2026-06-15
- **block_vs_allow_recommendation:** allow (default) — user-initiated fetch on a human's behalf through Diffbot software; respects robots.txt. Blocking degrades that user's task.
- **citation_referral_value:** medium (fetches a specific page for a user; can surface it to them)
- **cloudflare_verified_category:** — (verify-against-primary-at-build)
- **status:** active
- **triples:** ["Diffbot-User","operated_by","Diffbot"], ["Diffbot-User","has_bot_type","user-action-fetcher"], ["Diffbot-User","verified_via","user-agent-match"]
- **attribute_sources:** {"claims":["user_agent_token","robots_token","respects_robots","documentation_url","opt_out_mechanism"],"source":"https://docs.diffbot.com/docs/does-crawl-respect-robotstxt","last_verified":"2026-06-15"}