I just do web hosting for clients sites and use Kuma to monitor uptime and SSL certificates.

Ive got multiple Kuma’s running as well.

I’ve been using uptime Kuma recently and it’s great but works better outside of docker.

Inside docker I’d get a lot of false down positives from I assume docker throttling the checks.

Plus it works with email, telegram, and matrix chat alerts. I monitor all my clients sites with it, and it’s bullet proof behind caddy.