- Is my web server working?
- How fast is my web server responding?
An HTTP check, also known as a header check, monitors web server response times and status codes for a domain. Check your website’s status and make sure your web server is up and responding from many different locations.
Try It Yourself
Sonar Lite only allows you to see whether a domain is UP (2xx) or DOWN (4xx), but you can see all response codes in the full version of Sonar.
How It Works
Checks HTTP headers returned from the web server.
- Is my SSL certificate working?
- Is my domain secure?
Check your domain over HTTPS (port 443) to make sure your SSL certificate is valid. Sonar Lite will only tell you if your domain is UP or DOWN over HTTPS, so you will need to contact your SSL vendor to see what the issue is.