About UptimeCove

What it is

UptimeCove is an open-source uptime monitor and status page that you deploy toyour own Cloudflare account. A Workers Cron Trigger checks your endpoints on a schedule, results land in Cloudflare D1, and public status pages are rendered straight from that data at the edge.

There is no UptimeCove company holding your monitoring data, no seat pricing, and no plan to upsell you. The whole thing is a repository you control.

Why it exists

Hosted monitoring is priced for enterprises but bought by side projects. Paying a monthly subscription to find out whether a hobby API is up — and handing a third party the history of every outage you've ever had — never made much sense.

Cloudflare's free tier already includes scheduled Workers, a SQL database and a KV store. That's everything a monitor needs. UptimeCove is what happens when you assemble those pieces instead of renting them.

By the numbers

$0

Infrastructure cost on the Cloudflare free tier

60s

Fastest check interval

90d

Uptime history on status pages

MIT

Licence — fork it, sell it, whatever

How it works

• Cron fires every minute. The Worker selects monitors whose interval has elapsed and checks them in parallel.
• Checks are validated. Status code, response time, and optional body-contains / body-must-not-contain assertions all count toward pass or fail.
• Incidents open on the second consecutive failure — one flaky request doesn't page you — and close automatically on recovery.
• Notifications go out over email, webhooks, Slack or Discord, and respect maintenance windows.
• Status pages render 90-day uptime bars, current state and incident history for whichever monitors you choose to publish.

Built with

Astro 7

Server-rendered UI, file-based routing, zero client JS by default

Cloudflare Workers

Runs the app and the Cron Trigger that fires the checks

Cloudflare D1

SQLite at the edge — monitors, checks, incidents, subscribers

Cloudflare KV

Cached status-page payloads and short-lived counters

Tailwind CSS v4

Styling, via the Vite plugin — no config file to maintain

Vitest

Unit tests for validation, uptime maths and check logic

Who maintains it

UptimeCove is built and maintained byHarshal Patilwith help from anyone who sends a pull request. It's released under theMIT licence, so you're free to use it commercially, modify it, and ship your own version.

Issues and feature requests are welcome onGitHub, and CONTRIBUTING.mdexplains how to get a local instance running.