HTTP_Request2
PEAR HTTP_Request2 PHP library
About this crawler
HTTP_Request2 is a web crawler identified by the regular-expression pattern HTTP_Request2\/ in the User-Agent request header. It is categorised as http-library. Use the regex above to detect, log, allow, or block HTTP_Request2 traffic in your web server, CDN edge rules, or robots.txt.
Block-rate · top 25k sites
0.065%
Technical details
- Name
- HTTP_Request2
- Pattern
HTTP_Request2\/- Tags
- http-library
- Reference
- http://pear.php.net/package/http_request2
- Added
- 2026/05/09
- Instances
- 6 known sample(s)
Sample User-Agent strings
HTTP_Request2/2.2.0 (http://pear.php.net/package/http_request2) PHP/5.3.29
HTTP_Request2/2.2.1 (http://pear.php.net/package/http_request2) PHP/5.3.29
HTTP_Request2/2.2.1 (http://pear.php.net/package/http_request2) PHP/5.5.33
HTTP_Request2/2.2.1 (http://pear.php.net/package/http_request2) PHP/5.5.35
HTTP_Request2/2.3.0 (http://pear.php.net/package/http_request2) PHP/5.3.29
HTTP_Request2/@package_version@ (http://pear.php.net/package/http_request2) PHP/5.5.9-1ubuntu4.14
Block this crawler
robots.txt — disallow HTTP_Request2:
User-agent: HTTP_Request2
Disallow: /
Apache .htaccess — return 403:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} HTTP_Request2\/ [NC]
RewriteRule .* - [F,L]
Nginx — return 403 inside a server block:
if ($http_user_agent ~* "HTTP_Request2\\/") {
return 403;
}
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