You?re already on the right track, but once you?re monitoring ~20 sites, manual tools hit a ceiling fast.

For cross-browser/device monitoring, take a look at tools like BrowserStack or LambdaTest ? they?re built exactly for catching UI and functional issues before users do. For uptime + performance with archiving, Pingdom or UptimeRobot paired with something like SpeedCurve works well.

On the compliance side, depending on your region, services like Cookiebot or OneTrust can automate cookie scans and flag regulatory issues over time.