curl

http-library ^curl

cURL command-line tool for HTTP requests

About this crawler

curl is a web crawler identified by the regular-expression pattern ^curl in the User-Agent request header. It is categorised as http-library. Use the regex above to detect, log, allow, or block curl traffic in your web server, CDN edge rules, or robots.txt.

Block-rate · top 25k sites

0.065%
latest snapshot
2026-06-04
matched key: ^curl
2026-05-012026-06-040.11%

Technical details

Name
curl
Pattern
^curl
Tags
http-library
Reference
https://curl.se/
Added
2019/08/15
Instances
8 known sample(s)

Sample User-Agent strings

curl
curl/7.29.0
curl/7.47.0
curl/7.54.0
curl/7.55.1
curl/7.64.0
curl/7.64.1
curl/7.65.3

Block this crawler

robots.txt — disallow curl:

User-agent: curl Disallow: /

Apache .htaccess — return 403:

RewriteEngine On RewriteCond %{HTTP_USER_AGENT} ^curl [NC] RewriteRule .* - [F,L]

Nginx — return 403 inside a server block:

if ($http_user_agent ~* "^curl") { return 403; }
← back to all crawlers