Duplicacy - A new generation cross-platform cloud backup tool
Pingdom - With website monitoring from Pingdom you will be the first to know when your website is down. No installation required. 30-day free trial.
Time Machine - Time Machine is the breakthrough automatic backup that’s built right into Mac OS X.
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
Duplicati - Free backup software to store backups online with strong encryption. Works with FTP, SSH, WebDAV, OneDrive, Amazon S3, Google Drive and many others.
Better Uptime - We call you when your website goes down