About UptimeDown

UptimeDown is a free, single-purpose utility: paste any public URL and get an honest, real-time answer — online, experiencing issues, or unreachable — with the HTTP status code, response time and what it actually means.

How checks work

Checks run server-side (on Cloudflare's edge in production), follow up to 5 redirects with every hop revalidated, and distinguish DNS failures, timeouts, TLS errors and HTTP errors. A 404 means the server is reachable but the page is missing — not that the whole site is down.

Why free?

Manual checks are free and need no account. The site is supported by display ads (impressions, no clicks needed) and clearly-labeled affiliate recommendations shown only when relevant. See our Privacy Policy and Terms.

Contact

Questions, corrections or takedowns: contact us.