For more sophisticated control over server testing and notification—plus a slicker interface—consider IPCheck Server Monitor Professional ($125). IP-Check checks up to 20 Web sites (including SSL ...

Called IPCheck, the software works on Windows NT or 2000 networks and monitors whether servers are operational or not. You can set levels with IPCheck, and if those levels are exceeded, IPCheck will ...

If you think your router is being used to conduct malicious activity, try using IP Check, which alerts you if your IP address has been observed scanning the internet as part of a botnet or residential ...

GreyNoise's IP Check tool can be used to see if your router or other network-attached devices are secretly being used for a botnet.