Monitoring your Azure services couldn’t get easier. Windows Azure recently released a capability to test connectivity of your service (REST or website) from over three continents. It’s super simple to setup. Login to your azure management console, add your website URL to monitor and select up to three locations to monitor from: 
With that you can start getting response time, and uptime reports (my uptime was 100% so I didn’t show it here): 
In this case, Violet is Chicago, Blue is Hong Kong, and Green is Amsterdam.