Sysomos

seo Sysomos

Sysomos web crawler for social media analysis

About this crawler

Sysomos is a web crawler identified by the regular-expression pattern Sysomos in the User-Agent request header. It is categorised as seo. Use the regex above to detect, log, allow, or block Sysomos 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: Sysomos
2026-05-012026-06-040.11%

Technical details

Name
Sysomos
Pattern
Sysomos
Tags
seo
Reference
https://www.meltwater.com/en
Added
2016/02/08
Instances
1 known sample(s)

Sample User-Agent strings

Mozilla/5.0 (compatible; Sysomos/1.0; +http://www.sysomos.com/; Sysomos)

Block this crawler

robots.txt — disallow Sysomos:

User-agent: Sysomos Disallow: /

Apache .htaccess — return 403:

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

Nginx — return 403 inside a server block:

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