Check right now whether a website is online and responding.
This is a single point-in-time check. For continuous monitoring with alerts, use a dedicated uptime-monitoring service.
Website Uptime Checker performs a live, right-now check of whether a website is reachable and responding correctly. Type in a URL, click check, and within a couple of seconds you'll know whether the site returned a healthy response, an error, or nothing at all.
Your browser sends a real HTTP request to the target URL through a CORS-enabled relay, since direct cross-origin requests to arbitrary domains are restricted by browser security policy. The relay reports back the HTTP status code and response time, which this tool interprets: a 2xx or 3xx response means the site is up and answering normally, a 4xx/5xx response means the server responded but with an error, and no response at all typically means the site is unreachable, blocking the request, or the domain is misconfigured.
This check reflects the exact moment you click the button — it is not a running monitor. If you need to know the instant a site goes down at 3am, or want historical uptime percentages and SMS/email alerts, that requires a dedicated monitoring service that pings your site every few minutes from multiple locations around the clock. This tool is best used for an immediate "is it just me or is the site actually down" answer, or as a quick manual check after a deploy or server change.
Site owners use it to confirm a deploy went smoothly and the site came back online correctly. Visitors use it to sanity-check whether a site that "won't load" for them is actually down for everyone or just a local network/DNS issue on their end. Support teams use it as a first-line triage step before escalating an incident.
The check is routed through a relay server whose network path, geographic location or IP reputation may be treated differently by the target site's firewall or bot-protection than your own direct browser visit.
It means the server responded with a healthy status code at that moment — it doesn't rule out slow performance, broken individual pages, or issues affecting only certain visitors or regions.
It's functionally similar for a basic check, but this tool gives you the explicit HTTP status code and response time rather than just a rendered page or generic browser error screen.
No, each click is a single, independent check. For ongoing monitoring with alerting, a dedicated uptime-monitoring service that runs checks automatically at intervals is the right tool.
Some sites return non-2xx status codes intentionally for certain paths (redirects, maintenance pages, geo-blocks) even while functioning normally elsewhere on the domain — check the homepage directly if a specific path looks unusual.
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