Synapse
Matrix Synapse web crawler bot
About this crawler
Synapse is a web crawler identified by the regular-expression pattern Synapse in the User-Agent request header. It is categorised as social-preview. Use the regex above to detect, log, allow, or block Synapse traffic in your web server, CDN edge rules, or robots.txt.
Block-rate · top 25k sites
0.065%
Technical details
- Name
- Synapse
- Pattern
Synapse- Tags
- social-preview
- Reference
- https://github.com/matrix-org/synapse
- Added
- 2023/09/08
- Instances
- 1 known sample(s)
Sample User-Agent strings
Synapse (bot; +https://github.com/matrix-org/synapse)
Block this crawler
robots.txt — disallow Synapse:
User-agent: Synapse
Disallow: /
Apache .htaccess — return 403:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} Synapse [NC]
RewriteRule .* - [F,L]
Nginx — return 403 inside a server block:
if ($http_user_agent ~* "Synapse") {
return 403;
}
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