Mattermost-Bot

social-preview Mattermost-Bot\/

Team communication platform fetching URLs for preview and automation

About this crawler

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

Technical details

Name
Mattermost-Bot
Pattern
Mattermost-Bot\/
Tags
social-preview
Reference
https://datadome.co/bots/mattermost-bot/
Added
2026/04/17
Instances
1 known sample(s)

Sample User-Agent strings

Mattermost-Bot/1.1

Block this crawler

robots.txt — disallow Mattermost-Bot:

User-agent: Mattermost-Bot Disallow: /

Apache .htaccess — return 403:

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

Nginx — return 403 inside a server block:

if ($http_user_agent ~* "Mattermost-Bot\\/") { return 403; }
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