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Crawlera
Crawlera proxy service for web scraping
About this crawler
Crawlera is a web crawler identified by the regular-expression pattern Crawlera in the User-Agent request header. It is categorised as http-library. Use the regex above to detect, log, allow, or block Crawlera traffic in your web server, CDN edge rules, or robots.txt.
Block-rate · top 25k sites
0.060%
Technical details
- Name
- Crawlera
- Pattern
Crawlera- Tags
- http-library
- Added
- 2026/05/09
- Instances
- 3 known sample(s)
Sample User-Agent strings
Mozilla/5.0 (compatible; Crawlera/1.10.2; UID 11912)
Mozilla/5.0 (compatible; Crawlera/1.10.2; UID 24522)
Mozilla/5.0 (compatible; Crawlera/1.10.2; UID 40409)
Block this crawler
robots.txt — disallow Crawlera:
User-agent: Crawlera
Disallow: /
Apache .htaccess — return 403:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} Crawlera [NC]
RewriteRule .* - [F,L]
Nginx — return 403 inside a server block:
if ($http_user_agent ~* "Crawlera") {
return 403;
}
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