One possible backup would be Bitbucket (https://bitbucket.orghttps://bitbucket.org/).
(I'm not affiliated Bitbucket in any way. I don't profit from them doing well, aside from them sticking around to keep providing free hosting for me.)
(I'm not affiliated Bitbucket in any way. I don't profit from them doing well, aside from them sticking around to keep providing free hosting for me.)