OpenWebSpider
Open source web spider
About this crawler
OpenWebSpider is a web crawler identified by the regular-expression pattern OpenWebSpider in the User-Agent request header. It is categorised as http-library. Use the regex above to detect, log, allow, or block OpenWebSpider traffic in your web server, CDN edge rules, or robots.txt.
Block-rate · top 25k sites
0.13%
Technical details
- Name
- OpenWebSpider
- Pattern
OpenWebSpider- Tags
- http-library
- Reference
- http://www.openwebspider.org/
- Added
- 2026/05/03
- Instances
- 1 known sample(s)
Sample User-Agent strings
OpenWebSpider v0.1.4 (http://www.openwebspider.org/)
Block this crawler
robots.txt — disallow OpenWebSpider:
User-agent: OpenWebSpider
Disallow: /
Apache .htaccess — return 403:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} OpenWebSpider [NC]
RewriteRule .* - [F,L]
Nginx — return 403 inside a server block:
if ($http_user_agent ~* "OpenWebSpider") {
return 403;
}
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