Simple too to monitor one or more urls. The tool will beep in error events.
npm install -g monitor-url-tool
will check example.com every 5 seconds.
monurl 5000 servers.conf
while servers.conf will look like this:
google,yahoo,#comments can be embedded in the file, but only in their own linefacebook,
the tool also provides a cli which allows adding servers after its been started:
monitor> addServer('beer', '')