How to Get Notified by SMS or Email if my Website is Down?

In 4 simple steps, you can Get Notified by SMS or Email if your Website is Down, and for free! 

1. Sign-in to your Google account and then click here to copy this Google sheet into your Google Drive. You may use your Google Apps account as well.
2. Put your website URLs in cell B2 (comma separated) and your email address in cell B3. If you wish to be alerted by text messages, just replace No with Yes in cell B4.
3. You’ll find a new Website Monitor menu in your Google Docs toolbar. Click Initialize and you’ll get a pop-up asking for authorization. Grant the necessary access.
4. Go to the Website Monitor menu again and choose “Start” to begin the monitoring process. Close the Google Sheet.

See How it works and read the used Script