A

adscanner

advertising adscanner

AdScanner web crawler for ad analysis

About this crawler

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

Block-rate · top 25k sites

0.20%
latest snapshot
2026-06-04
matched key: adscanner
2026-05-012026-06-040.34%

Technical details

Name
adscanner
Pattern
adscanner
Tags
advertising
Added
2018/06/24
Instances
1 known sample(s)

Sample User-Agent strings

Mozilla/5.0 (compatible; adscanner/)

Block this crawler

robots.txt — disallow adscanner:

User-agent: adscanner Disallow: /

Apache .htaccess — return 403:

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

Nginx — return 403 inside a server block:

if ($http_user_agent ~* "adscanner") { return 403; }
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