ThumbSniper
ThumbSniper thumbnail generator
About this crawler
ThumbSniper is a web crawler identified by the regular-expression pattern ThumbSniper in the User-Agent request header. It is categorised as ai-fetcher. Use the regex above to detect, log, allow, or block ThumbSniper traffic in your web server, CDN edge rules, or robots.txt.
Block-rate · top 25k sites
0.065%
Technical details
- Name
- ThumbSniper
- Pattern
ThumbSniper- Tags
- ai-fetcher
- Reference
- http://thumbsniper.com
- Added
- 2026/05/09
- Instances
- 1 known sample(s)
Sample User-Agent strings
ThumbSniper (http://thumbsniper.com)
Block this crawler
robots.txt — disallow ThumbSniper:
User-agent: ThumbSniper
Disallow: /
Apache .htaccess — return 403:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} ThumbSniper [NC]
RewriteRule .* - [F,L]
Nginx — return 403 inside a server block:
if ($http_user_agent ~* "ThumbSniper") {
return 403;
}
← back to all crawlers