how to check the availablility of /index.html

For html monitor to properly work you need the full string. The domain.domainsomthing.com is basically a host name that it's passing to the server that is listening on html port.

 

 

However, you could as an alternative create a TCP monitor and sent the send string to GET /check.html and the recieve string to what ever you want to check in the check.html page is displaying.

 

 

CB