Free resources, For website owners
Uptime Kuma
A self-hosted monitor that tells you a site is down before a client does.
- Category
- For website owners
- Cost
- Free and open source, you host it yourself
- Website
- github.com
What Uptime Kuma is
Uptime Kuma checks your sites on a schedule and sends an alert the moment one stops answering. It handles HTTP checks, ports, certificate expiry and keyword checks, so it notices a page that returns 200 while showing an error.
Because you host it, there is no per-monitor pricing and no limit on how often it checks — the cost is that it has to live somewhere other than the server it is watching.
Good for
- Watching client sites when you are responsible for uptime
- Certificate expiry warnings before the browser starts shouting
- Monitoring more endpoints than a free hosted plan allows
Worth knowing
- Never run it on the server it monitors — when that server goes down, so does the alert.
- Send alerts somewhere you will actually see them: a phone notification, not an inbox rule.
More in this category
- Google Search ConsoleSee the searches your site appears for, indexing problems and Core Web Vitals.
- Bing Webmaster ToolsSearch Console for Bing, which also feeds results to ChatGPT search and DuckDuckGo.
- CloudflareFree CDN, SSL, DNS and DDoS protection in front of any website.
- Let's EncryptFree, automatically renewed SSL certificates.