URL Monitor help

Hello, I'm having problems with my ServiceDesk Plus installation and want to monitor the url to force a restart of the instance with OpManager when it inevitably goes down.

Please advise how to monitor the url (http://server:port) with the following credentials:

user = administrator
password = 12345
logon to = local authentication (there are domains in the list as well, but I want local).

Regards,

JJ.