Is your site up?
Check from 9 regions in seconds.
Real uptime isn't "pingable from my laptop" — it's reachable from everywhere your users are. World Wide Uptime hits your domain from 9 regions in parallel and returns full DNS, TCP, TLS and TTFB timings, SSL info, CDN detection, DNS records, and more.
Full connection breakdown
Every region card shows DNS, TCP connect, TLS handshake, TTFB and download times — so you can see where latency is actually spent.
Real diagnostics when things break
Cert expired? Redirect loop? 5xx from origin? We classify the failure and give you a concrete next step, not just a red X.
Shareable, embeddable, scriptable
Every result gets a permalink like /check/stripe.com. Drop an SVG uptime badge into your repo. Hit /api/check for JSON.
Why multi-region matters
A site can be up from one data center and down from another. BGP routing issues, geo-blocks, misconfigured CDNs, expired certs on specific PoPs, and regional DNS failures are the reason users tell you it's broken while your dashboard says everything's fine.
World Wide Uptime checks from 9 globally distributed regions on every request. When we see partial outages, we tell you which regions and which layer (DNS, TCP, TLS, HTTP) is misbehaving — so you know whether to page your CDN, your DNS provider, or your origin team.