Omnisend

seo Omnisend\/

Ecommerce marketing automation crawler fetching campaign URLs metadata

About this crawler

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

Block-rate · top 25k sites

No block-rate data for this crawler.

Technical details

Name
Omnisend
Pattern
Omnisend\/
Tags
seo
Reference
https://bots.omnisend.io/cf.txt
Added
2026/04/17
Instances
1 known sample(s)

Sample User-Agent strings

Omnisend/1.0

Block this crawler

robots.txt — disallow Omnisend:

User-agent: Omnisend Disallow: /

Apache .htaccess — return 403:

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

Nginx — return 403 inside a server block:

if ($http_user_agent ~* "Omnisend\\/") { return 403; }
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