iqdb
IQDB reverse image search
About this crawler
iqdb is a web crawler identified by the regular-expression pattern iqdb in the User-Agent request header. It is categorised as ai-fetcher. Use the regex above to detect, log, allow, or block iqdb traffic in your web server, CDN edge rules, or robots.txt.
Block-rate · top 25k sites
No block-rate data for this crawler.
Technical details
- Name
- iqdb
- Pattern
iqdb- Tags
- ai-fetcher
- Reference
- http://iqdb.org/
- Added
- 2026/05/09
- Instances
- 2 known sample(s)
Sample User-Agent strings
iqdb/0.1 (+http://iqdb.org/)
iqdb/0.2 (+http://iqdb.harry.lu/)
Block this crawler
robots.txt — disallow iqdb:
User-agent: iqdb
Disallow: /
Apache .htaccess — return 403:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} iqdb [NC]
RewriteRule .* - [F,L]
Nginx — return 403 inside a server block:
if ($http_user_agent ~* "iqdb") {
return 403;
}
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