Website Tools
Website Status Checker
Instantly check any website's uptime status, HTTP status code, and response time.
Enter any domain below to instantly check whether it's up or down, its HTTP/HTTPS status codes, and response time.
JustChecker monitors your websites around the clock and alerts you the instant something goes down.
Frequently Asked Questions
It reflects whether a real HTTP request to your site received a response at all - any actual status code back, including 4xx/5xx error pages, counts as "up" (the server is reachable); a connection failure, timeout, or DNS error counts as "down".
The check runs from our servers, independent of your own network - a local ISP issue, a DNS resolver problem on your device, or a firewall/VPN blocking only you can make a site appear down locally while it's genuinely reachable from elsewhere.
No - this is a one-time, on-demand snapshot of the current moment. A single check can never distinguish a permanent outage from a brief, transient blip; JustChecker's account-based monitoring re-checks on a schedule and only alerts after a confirmed, sustained pattern.
Under 200-300ms is generally considered fast for a typical website; response times climbing past 1-2 seconds are noticeable to visitors and can affect both user experience and search ranking signals.
It can confirm the login page itself loads and responds - reaching content behind authentication isn't something a public, unauthenticated checker can do, by design.
A page can visually "load" while returning an error status code invisible to a casual glance (e.g. a styled 500 error page) - the underlying HTTP status is what search engines and automated systems actually rely on.