Diffbot
Diffbot web data extraction
About this crawler
Diffbot is a web crawler identified by the regular-expression pattern Diffbot in the User-Agent request header. It is categorised as seo. Use the regex above to detect, log, allow, or block Diffbot traffic in your web server, CDN edge rules, or robots.txt.
Block-rate · top 25k sites
4.0%
Technical details
- Name
- Diffbot
- Pattern
Diffbot- Tags
- seo
- Reference
- http://www.diffbot.com
- Added
- 2026/05/09
- Instances
- 0 known sample(s)
Sample User-Agent strings
no public sample user-agents recorded.
Block this crawler
robots.txt — disallow Diffbot:
User-agent: Diffbot
Disallow: /
Apache .htaccess — return 403:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} Diffbot [NC]
RewriteRule .* - [F,L]
Nginx — return 403 inside a server block:
if ($http_user_agent ~* "Diffbot") {
return 403;
}
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