M
Mail.RU
Mail.RU email client
About this crawler
Mail.RU is a web crawler identified by the regular-expression pattern Mail\.R[Uu]\/ in the User-Agent request header. It is categorised as http-library. Use the regex above to detect, log, allow, or block Mail.RU traffic in your web server, CDN edge rules, or robots.txt.
Block-rate · top 25k sites
0.33%
Technical details
- Name
- Mail.RU
- Pattern
Mail\.R[Uu]\/- Tags
- http-library
- Added
- 2026/05/09
- Instances
- 2 known sample(s)
Sample User-Agent strings
Mail.RU/2.0
Mail.Ru/1.0
Block this crawler
robots.txt — disallow Mail.RU:
User-agent: Mail.RU
Disallow: /
Apache .htaccess — return 403:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} Mail\.R[Uu]\/ [NC]
RewriteRule .* - [F,L]
Nginx — return 403 inside a server block:
if ($http_user_agent ~* "Mail\\.R[Uu]\\/") {
return 403;
}
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