S
SiteMonitor
Site monitoring crawler
About this crawler
SiteMonitor is a web crawler identified by the regular-expression pattern SiteMonitor in the User-Agent request header. It is categorised as monitoring. Use the regex above to detect, log, allow, or block SiteMonitor 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
- SiteMonitor
- Pattern
SiteMonitor- Tags
- monitoring
- Added
- 2026/05/09
- Instances
- 1 known sample(s)
Sample User-Agent strings
Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0; SiteMonitor)
Block this crawler
robots.txt — disallow SiteMonitor:
User-agent: SiteMonitor
Disallow: /
Apache .htaccess — return 403:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} SiteMonitor [NC]
RewriteRule .* - [F,L]
Nginx — return 403 inside a server block:
if ($http_user_agent ~* "SiteMonitor") {
return 403;
}
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