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um-LN

seo um-LN

Ubermetrics web crawler for monitoring

About this crawler

um-LN is a web crawler identified by the regular-expression pattern um-LN in the User-Agent request header. It is categorised as seo. Use the regex above to detect, log, allow, or block um-LN 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: um-LN
2026-05-012026-06-040.30%

Technical details

Name
um-LN
Pattern
um-LN
Tags
seo
Added
2017/11/02
Instances
1 known sample(s)

Sample User-Agent strings

Mozilla/5.0 (compatible; um-LN/1.0; mailto: [email protected])

Block this crawler

robots.txt — disallow um-LN:

User-agent: um-LN Disallow: /

Apache .htaccess — return 403:

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

Nginx — return 403 inside a server block:

if ($http_user_agent ~* "um-LN") { return 403; }
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