StayUp.dev – Diagnose if your server or Cloudflare is causing downtime

Summary: StayUp.dev identifies the cause of website downtime by distinguishing issues like origin server failure, CDN problems, DNS delays, or SSL expiration. It offers free diagnostics and paid monitoring with alerts for Cloudflare or CDN failures.

What it does

It analyzes website outages to pinpoint whether the origin server, CDN, DNS, or SSL is responsible, providing detailed diagnostics beyond simple ping checks.

Who it's for

Website operators needing clear differentiation between origin and CDN issues during outages.

Why it matters

It prevents wasted time debugging by accurately identifying the source of downtime, especially during CDN outages like Cloudflare failures.