MDDS

MDDS crawler

About this crawler

MDDS is a web crawler identified by the regular-expression pattern MDDS in the User-Agent request header. It is categorised as http-library. Use the regex above to detect, log, allow, or block MDDS 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: MDDS
Pattern: MDDS
Tags: http-library
Added: 2026/05/09
Instances: 1 known sample(s)

Sample User-Agent strings

Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; MDDS; PTST 2.386)

Block this crawler

robots.txt — disallow MDDS:

User-agent: MDDS Disallow: /

Apache .htaccess — return 403:

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

Nginx — return 403 inside a server block:

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

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