CERT PL
Polish cybersecurity vulnerability and threat scanner
About this crawler
CERT PL is a web crawler identified by the regular-expression pattern CERT PL in the User-Agent request header. It is categorised as scanner. Use the regex above to detect, log, allow, or block CERT PL traffic in your web server, CDN edge rules, or robots.txt.
Block-rate · top 25k sites
0.065%
Technical details
- Name
- CERT PL
- Pattern
CERT PL- Tags
- scanner
- Reference
- https://cert.pl/skanowanie/
- Added
- 2026/04/17
- Instances
- 1 known sample(s)
Sample User-Agent strings
Mozilla/5.0 (compatible; Artemis; CERT PL; +https://cert.pl/skanowanie)
Block this crawler
robots.txt — disallow CERT PL:
User-agent: CERT PL
Disallow: /
Apache .htaccess — return 403:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} CERT PL [NC]
RewriteRule .* - [F,L]
Nginx — return 403 inside a server block:
if ($http_user_agent ~* "CERT PL") {
return 403;
}
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