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Notes from building OpenUptimeOpenUptime 开发笔记

Product updates, how it works under the hood, and what we are learning about running uptime monitoring on Cloudflare Workers.产品更新、内部实现，以及在 Cloudflare Workers 上做可用性监控的心得。

Announcement发布Oct 12, 20262026 年 10 月 12 日 · 6 min read6 分钟

Meet OpenUptime, an open source uptime monitor you can run yourself认识 OpenUptime：一个可以自己部署的开源可用性监控

What an open source uptime monitor does when your site goes down at 3 a.m., what it keeps an eye on, and how to run it: hosted, in Docker, or on your own Cloudflare account.凌晨 3 点网站挂了，一个开源的可用性监控会做什么、它盯着哪些东西，以及怎么用起来：托管版、Docker，或者部署在你自己的 Cloudflare 账号上。

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Engineering工程Oct 14, 20262026 年 10 月 14 日

Why Postgres and not D1 (the short answer is Docker)为什么用 Postgres，而不是 D1（简短回答：Docker）

OpenUptime runs on Cloudflare Workers but keeps its data in Postgres. Four reasons, an honest list of what it costs, and why D1 is not ruled out.OpenUptime 跑在 Cloudflare Workers 上，数据却放在 Postgres。四个理由，一份老实的代价清单，以及为什么没有把 D1 彻底排除。