UptimeRobot

monitoring UptimeRobot

UptimeRobot website monitoring web crawler

About this crawler

UptimeRobot is a web crawler identified by the regular-expression pattern UptimeRobot in the User-Agent request header. It is categorised as monitoring. Use the regex above to detect, log, allow, or block UptimeRobot traffic in your web server, CDN edge rules, or robots.txt.

Block-rate · top 25k sites

0.20%
latest snapshot
2026-06-04
matched key: UptimeRobot
2026-05-012026-06-040.30%

Technical details

Name
UptimeRobot
Pattern
UptimeRobot
Tags
monitoring
Reference
https://www.uptimerobot.com/
Added
2018/03/27
rDNS suffixes
.uptimerobot.com
Instances
1 known sample(s)

rDNS verification (FCrDNS)

Verify a request is genuinely UptimeRobot with forward-confirmed reverse DNS: the client IP's PTR record must end in one of the suffixes below and a forward A/AAAA lookup of that hostname must return the same IP. UA strings alone are spoofable; FCrDNS is not.

Sample User-Agent strings

Mozilla/5.0+(compatible; UptimeRobot/2.0; http://www.uptimerobot.com/)

Block this crawler

robots.txt — disallow UptimeRobot:

User-agent: UptimeRobot Disallow: /

Apache .htaccess — return 403:

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

Nginx — return 403 inside a server block:

if ($http_user_agent ~* "UptimeRobot") { return 403; }
← back to all crawlers