Training · Diffbot
Diffbot
Feeds Diffbot's Knowledge Graph, a structured database of the web sold to enterprises and used for AI extraction. Diffbot has stated that its crawler is often operated on behalf of customers requesting specific pages.
- Operator
- Diffbot
- Purpose
- Training crawlers
- Feeds
- Diffbot KG
- robots.txt token
Diffbot- Honours robots.txt
- Undocumented
- Documentation
- None published
What it looks like in server logs
A representative user-agent string. Version numbers change; the Diffbot token does not. Paste your own log line into the user-agent checker to confirm a match.
Mozilla/5.0 (compatible; Diffbot/0.1; +http://www.diffbot.com)How to block Diffbot
Add this to the robots.txt at the root of your domain. Robots.txt is advisory: it works only on crawlers that choose to read it. This one is undocumented. To enforce a block, match the user agent at your CDN or web server and return 403.
User-agent: Diffbot
Disallow: /
To block every training crawler at once, or to block training while keeping AI search citations, use the robots.txt generator.
How to allow Diffbot while blocking others
A more specific User-agent group wins over a wildcard. Place this above any User-agent: * block that disallows paths, and Diffbot keeps full access.
User-agent: Diffbot
Allow: /
How to verify a genuine hit
The user-agent string is self-asserted: anyone can send it from a laptop, and scrapers routinely impersonate well-known crawlers to slip past filters aimed at unknown ones.
No published ranges.
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