SirdataBot
Contextual advertising and semantic content analysis crawler bot
About this crawler
SirdataBot is a web crawler identified by the regular-expression pattern SirdataBot in the User-Agent request header. It is categorised as advertising. Use the regex above to detect, log, allow, or block SirdataBot traffic in your web server, CDN edge rules, or robots.txt.
Block-rate · top 25k sites
0.065%
Technical details
- Name
- SirdataBot
- Pattern
SirdataBot- Tags
- advertising
- Reference
- https://semantic-api.docs.sirdata.net/contextual-api/contextual-api/introduction
- Added
- 2026/04/26
- Instances
- 1 known sample(s)
Sample User-Agent strings
SirdataBot (+https://semantic-api.docs.sirdata.net/contextual-api/contextual-api/introduction)
Block this crawler
robots.txt — disallow SirdataBot:
User-agent: SirdataBot
Disallow: /
Apache .htaccess — return 403:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} SirdataBot [NC]
RewriteRule .* - [F,L]
Nginx — return 403 inside a server block:
if ($http_user_agent ~* "SirdataBot") {
return 403;
}
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