Your local cache hides problems
A page that loads from your browser cache may look fine even when the server is down. You need a server-side check.
How-To Guide
How to Check If a Website Is Down
To check if a website is down, visit the URL in a browser, use an online checker tool, or run a server-side reachability test. The fastest method is to use a website monitoring tool that confirms whether the site is reachable from outside your network.
Common issues teams face
Network issues look like site issues
Sometimes your own internet connection is the problem, not the website. An external check removes this uncertainty.
Downtime needs fast detection
The longer a site is down, the more visitors you lose. Quick detection helps you respond faster.
How MonitorMojo helps
Use an uptime checker
A website health check tool like MonitorMojo sends a real server-side request to verify the site is reachable.
Check the HTTP status code
A 200 status means the site is working. 4xx codes indicate client errors. 5xx codes mean server-side problems.
Check from an external location
Server-side checks from outside your network confirm the site is or is not accessible to real visitors.
Review alongside SSL and response time
A reachable site might still have SSL problems or slow performance. Check all signals together.
Who this is for
Web agencies
Quickly verify whether client websites are down and diagnose the cause.
Freelancers
Check if a maintained site is down before contacting the client.
Website managers
Verify uptime for multiple sites without manual browser checks.
Check if a website is down now
MonitorMojo checks website reachability, SSL status, response time, and security headers. Find out if a site is really down in seconds.
Run Website Check