Sensai will always scan your website from a fixed IP address with a particular user agent string. This allows you to give permission to just our IP address to access a pre-production server to test performance there.
Sensai's IP address: 34.27.20.207
Sensai's user agent string: Mozilla/5.0 (Linux; Android 11; moto g power (2022)) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Mobile Safari/537.36 Chrome-Lighthouse Sensai
It's possible that Sensai's user agent string may change in the future, but it will always contain "Sensai".