Uptime Checker for Website Monitoring
Check website uptime, HTTP status, response time, server headers, and cache signals for any public URL with a free monitoring tool.
Check website uptime and response status
Why this uptime checker matters
Use this uptime checker when you need to confirm whether a public website is reachable right now. The tool checks the live response from the server, shows the HTTP status code, measures response time, and reports basic headers that can help explain whether the page is online, slow, redirected, or failing.
Common uptime monitoring use cases
Website owners can use this free monitoring tool after DNS changes, hosting migrations, SSL updates, cache changes, plugin updates, or server maintenance. It is also useful when a client says a site is down but the issue may be local, cached, regional, or related to a specific HTTP response.
What to check next
If the uptime result shows a problem, check related signals with the DNS Lookup Tool, SSL Certificate Checker, HTTP Headers Inspector, and Redirect Checker. Together, these tools help narrow down whether the issue is DNS, SSL, hosting, headers, redirects, or application response.
Common questions
Helpful answers about this tool
What does the Uptime Checker confirm?
It confirms whether a website is responding now, the status visitors receive, and how quickly the first response arrives.
Does one successful check prove the website is always online?
No. It confirms the current check only. Ongoing monitoring is needed to measure availability over time.