Uptime Kuma
Self-hosted website monitoring tool like “Uptime Robot”.
Vigil
Microservices Status Page. Monitors a distributed infrastructure and sends alerts (Slack, SMS, etc.).
StatPing.ng
An easy to use Status Page for your websites and applications. Statping will automatically fetch the application and render a beautiful status page with tons of features for you to build an even better status page.
Gatus
Automated service health dashboard.
cState
Static status page for hyperfast Hugo. Clean design, minimal JS, super light HTML/CSS, high customization, optional admin panel, read-only API, IE8+. Best used with Netlify, Docker.