Why You Should Use Uptime Kuma to Track Your Website Health

Why Self-Hosted Uptime Monitoring Is Worth Setting Up

Website downtime you find out about from a user complaint, rather than from your own monitoring, is the worst possible way to learn about it. Uptime Kuma — a free, self-hosted uptime monitoring tool — closes that gap without the recurring cost of a hosted monitoring SaaS.

What It Actually Monitors

• HTTP(S) endpoint checks — is your site/API responding, and with what status code and response time.
• TCP port checks — useful for monitoring services beyond just HTTP, like a database or custom TCP service.
• DNS record monitoring — catching DNS misconfigurations before they cause a full outage.
• Certificate expiry tracking — a genuinely common cause of unexpected downtime is an expired SSL certificate; Uptime Kuma alerts before that happens rather than after your site starts showing certificate errors.

Why Self-Hosted Instead of a SaaS Monitor

• No recurring cost — hosted uptime-monitoring services typically charge per-monitor or tiered pricing; Uptime Kuma runs on infrastructure you already have (a small VPS, or even the same Coolify-managed server running your other projects) for the actual monitoring workload's compute cost only.
• No limit on monitor count — useful once you're running several projects (as covered in the companion Coolify posts) and want to monitor all of them without hitting a SaaS plan's monitor-count ceiling.
• Full data ownership — your uptime history and incident data live on your own infrastructure, not a third party's.

Setting It Up

Uptime Kuma runs as a Docker container, which means it deploys cleanly through Coolify (or any Docker-capable host) alongside your other self-hosted services. Once running, you add monitors through its dashboard — URL, check interval, and alert conditions — and it starts tracking uptime history and response times immediately.

Alerting That Actually Reaches You

The monitoring is only useful if the alert reaches you somewhere you'll actually see it quickly — Uptime Kuma supports notification integrations (Telegram, Discord, email, and others) so a real outage triggers an immediate alert to wherever your team actually watches, rather than sitting unnoticed in a dashboard nobody's looking at.

A Status Page for Free

Beyond internal alerting, Uptime Kuma can publish a public status page showing your services' current and historical uptime — a feature that's often a paid add-on on hosted monitoring platforms, included here at no extra cost.

Conclusion

If you're running any production service — your own or a client's — self-hosted uptime monitoring closes the gap between "a user tells you it's down" and "you already know and are fixing it," at a fraction of the cost of a hosted monitoring SaaS, especially once you're tracking more than a couple of services.