How do I make a backup?

Answer 1

You download your information as a GEDCOM file. You can do that with the download button at the bottom of the screen. It is a good idea to make a backup, especially if you allow others to edit your tree.

Answer 2

I can't stress enough how important it is to do this on REGULAR basis! Been there once...never again. Check this + Isommerer comment --> Backing Up with GEDCOM Files