Datadog vs Uptime Kuma

Datadog The default enterprise observability platform. Synthetics exist. You are not buying them for a status page. Uptime Kuma The open-source Docker monitor you run yourself. Free, flexible, and yours to keep online. Datadog is hosted. Uptime Kuma is self-hosted. That is the first fork — who owns the checker when your own network is the thing on fire. If you only needed a public status page and a health check, neither may be the smallest tool — GreenCrew is built for that job.

Side by side

Topic	Datadog	Uptime Kuma
Best for	Companies with a telemetry budget, many services, and a platform team to own the bill.	People who already self-host, want many monitor types, and accept that the checker is another box they own.
Not for	New products that needed to know if a site was up before they had a Kubernetes cluster.	Founders who did not want another container, or who need a status URL that stays up when their VPS does not.
Hosting	Hosted	Self-hosted
What it checks	APM, infra, logs, RUM, synthetics, security, and more. HTTP synthetics are a feature among dozens.	HTTP, keyword, TCP, DNS, Docker, push/heartbeats, and more — depending on how you configure it.
Status page	Not a status-page product. You build dashboards for insiders.	You can expose a status page from the same instance. It lives where you deployed it.
Alerts	Powerful, easy to over-page, tied to metrics and traces you already send.	Huge list of notification backends if you configure them.
Complexity	Heavy	Simple software, operationally yours.
Pricing shape	Usage-based and famous for surprising invoices. Hosts, custom metrics, and logs add up.	Free software. You pay the VPS, the backups, and the time.

What Datadog is

The default enterprise observability platform. Synthetics exist. You are not buying them for a status page. Companies with a telemetry budget, many services, and a platform team to own the bill. New products that needed to know if a site was up before they had a Kubernetes cluster.

What Uptime Kuma is

The open-source Docker monitor you run yourself. Free, flexible, and yours to keep online. People who already self-host, want many monitor types, and accept that the checker is another box they own. Founders who did not want another container, or who need a status URL that stays up when their VPS does not.

The actual split

Datadog is hosted. Uptime Kuma is self-hosted. That is the first fork — who owns the checker when your own network is the thing on fire.

Who should pick which

Datadog: Companies with a telemetry budget, many services, and a platform team to own the bill.
Uptime Kuma: People who already self-host, want many monitor types, and accept that the checker is another box they own.