Uptime Kuma

Uptime Kuma is a self-hosted monitoring tool that continuously checks whether your websites, APIs, and services are up, and shows the results on a clean dashboard. It supports HTTP(S), TCP, ping, DNS, and other check types, each with its own interval and conditions, and keeps a full history of response times and incidents.

Unlike configuration-file-driven monitors, everything is managed through the web interface: you log in, add monitors, and configure notifications without touching the server. It can alert through more than ninety providers (Slack, Discord, Telegram, email, webhooks, PagerDuty, and others), publish public status pages for your users, and issue certificate-expiry warnings.

It suits homelabs, small teams, and anyone wanting an independent uptime check on their own infrastructure — catching outages proactively rather than hearing about them from users.

On Hop3

Hop3 creates the first admin account for you at install time; retrieve it with:

hop3 app credentials --app <name>

Sign in with that username and password, then add your monitors from the UI. Everything Uptime Kuma stores — monitors, history, users, notification settings — lives in a single SQLite database on a persistent volume (<app>/volumes/data/kuma.db), so it survives redeploys and is included in backups.