Uptime Kuma Alternative: Self-Hosted vs Hosted Monitoring

Uptime Kuma is a popular open-source monitoring tool you run yourself. It is free to use, flexible, and loved by homelab and small-team admins. A hosted service like SiteDownCheck is a different category of thing, so this is less "which is better" and more "who should run the monitor, and from where?"

We are a new, small service, and the comparison below is meant to be fair to a very good open-source project. Details about Uptime Kuma come from its GitHub page at the time of writing (October 2026). Details about us come from our pricing page. Check both before deciding.

What each one is

According to its project page, Uptime Kuma is MIT-licensed and supports monitor types including HTTP(s), TCP, keyword, JSON query, WebSocket, ping, DNS record, push and Docker container checks. It supports multiple status pages, each mappable to its own domain, lists support for 90+ notification services, and mentions 2FA and certificate info. You install it with Docker or with Node.js and Git, and the project documents the supported platforms and Node.js version, so read those requirements first.

SiteDownCheck is a hosted service. The free plan gives you 3 monitors at 5-minute intervals, email, webhook, Slack and Discord alerts, SSL, domain and DNS-change alerts, keyword and JSON checks, maintenance windows, a public status page, badges, and heartbeat monitors for cron jobs. There is nothing to install.

Side-by-side

Where Uptime Kuma is stronger

• Control and cost. If you already have a spare VPS or a home server, the marginal cost is close to zero and nothing is capped at three monitors.
• Internal targets. It can watch a database port, a Docker container or an intranet service that a public checker can never reach.
• Faster intervals. Interval options go well below our 5 minutes, which matters if you care about detecting short outages.
• Breadth of alert channels and monitor types. Our alert list is deliberately short.
• Data stays with you. Some teams cannot send hostnames to a third party.

Where a hosted monitor fits better

• The monitor is not on the thing it monitors. This is the big one. If Uptime Kuma runs on the same server, the same provider or the same home internet connection as your site, an outage can take down the monitor and the alert together. You get silence, which looks like "all good." Many self-hosters therefore run Kuma on a different provider, or add an external check as a backstop.
• No maintenance. Someone has to patch the host, update the container, back up the data directory and notice when the monitor itself stops. A hosted service moves that chore to us.
• Outside-in view. A hosted probe tests the public path: DNS, TLS, CDN and your origin, from the internet rather than from inside your network.
• Expiry hygiene bundled. SSL expiry at 30, 14, 7 and 1 days, domain expiry and DNS or certificate change alerts come with the free plan.
• A status page that survives your outage. If your status page is hosted on the same infrastructure that is down, readers see nothing. Our status page lives on separate infrastructure from your site.

Who should choose what

Choose Uptime Kuma if you enjoy running your own tools, need internal checks, want many monitors or short intervals, and have a host that is independent of what you monitor.

Choose SiteDownCheck if you want zero maintenance for a handful of important public URLs and prefer someone else to be responsible for the monitor staying alive.

Many people reasonably use both: Kuma for internal and high-frequency checks, and a hosted free monitor as an independent external check on the two or three URLs that matter most. The hosted one answers the question "is my monitoring itself down?" without any extra work.

Migration steps

There is no import tool from Uptime Kuma to SiteDownCheck. For a handful of monitors, doing it by hand is quick.

1. In Uptime Kuma, list each monitor's URL, expected status code or keyword, and which notification it uses.
2. Pick the public ones. Internal monitors cannot move to a hosted service.
3. In uptime-monitor, add the top three by importance. Set the keyword or JSON check if you had one.
4. For push monitors, create a heartbeat in cron-monitoring and change your job to call the new URL. See the heartbeat guide.
5. Connect your Slack, Discord, email or webhook alerts and send a test.
6. Run both for a week and compare incident timestamps before you switch anything off.

Honest limitations of ours

Three monitors on the free plan is small. We check from one default location, every 5 minutes, and we cannot reach private networks. We have no Docker, ping or raw TCP-container monitors. Pro is planned to add more monitors, faster checks and multi-region, but has no price or launch date.

Next steps

• Start a free monitor on your most important public URL.
• Read how often you should monitor a website.
• Add a heartbeat monitor for backups and cron jobs.
• Publish a status page hosted outside your own infrastructure.
• See how to reduce false alerts.

FAQ

Is Uptime Kuma better than a hosted monitor?

It depends on what you need. It is more flexible and has no monitor cap, but you run, patch and back it up, and it can fail along with the server it runs on.

Can SiteDownCheck monitor internal services?

No. It checks publicly reachable URLs only. For private hosts keep a self-hosted tool such as Uptime Kuma.

Can I import my Uptime Kuma monitors?

There is no import. You recreate monitors by hand, which is fast for a few and slower for dozens.

Should I run both?

Often yes. Self-host for internal and frequent checks, and use a hosted monitor as an independent outside view of your key public pages.

Opinions here are our own; verify vendor details yourself. See our editorial policy and disclaimer.