Uptime.com Transaction Checks utilize the following user agents:
User Agent for Desktop Sites
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.111 Safari/537.36 Uptime/1.0 (https://uptime.com)
User Agent for Mobile Sites
Mozilla/5.0 (Linux; Android 10) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.114 Mobile Safari/537.36 Uptime/1.0 (https://uptime.com)
The Uptime.com User-Agent for all other checks is:
Mozilla/5.0 (compatible; Uptime/1.0; http://uptime.com)
When you review logs related to an outage, we recommend you locate the last time Uptime.com was able to make a connection to your server, and to look for any internal/external signals that may suggest a root cause for the outage.