web host to one drive autobackup
try to make something may be plugin or something which connects to the web host and onedrive and time to time auto backup the website to one drive.
For offsite , On site backup i use "Ahsay software" I am very satisfied using this software. One of my friend suggested me of this software. Leaving a link if you want you can just have a look at the software.http://www.ahsay.com/jsp/en/home/index.jsp?pageContentKey=ahsay_products_overview