USL uses the services of https://www.port-monitor.com to monitor our services as a backup to existing high-end Monitoring systems.
Port Monitor gives you 2(two) Free Ports to start with on a Free Account and there are ways to get more free ports by sharing them on Facebook & Twitter etc..
The interval between checks is only 60 seconds this means every 60 sec. your website or radio is being tested to see if it is online. If the service fails an immediate email is sent to you notifying you of the fact that your service is down and when it's back up you get a mail stating that too.
We found the service to be of high quality, this is why we referring the service to you our customer.
To Contact them click below: