Spanning Backup is the only product on the market that provides comprehensive restore for Google Sites. Because of the nature of Google Sites there are some important things to note when restoring your Google Sites data. The following is a list of those things:
*The Google Sites API does not report a page move as a site change, so we are not able to back those up. If you restore a page that has been moved, you will have to manually restore the link.
*The Google Sites API does not grant us access to Google Gadgets, so we are not able to back those up either. If you restore a page that contains Google Gadgets, you will have to rebuild and customize those Gadgets.
*The Google Sites API does not grant us access to comments (those are moving to Google+), so we are not able to back them up.
*Spanning Backup only supports Google Sites backup for domain customers. This is due to the way that Google grants access (or doesn’t grant access, in this case) to Sites for non-domain users.
*We do everything we can to maintain link relationships between Google Sites pages. This can be tricky, as sites are made up of a combination of absolute and relative links that can change as pages are moved, including during the backup and restore process. There are two specific instances that need special attention:
1. If you delete a page, Google maintains the link but directs it to an error page. If you then restore that page from Spanning Backup, you will have to manually restore the link.
2. If you use Announcements pages (a specific Google Sites page type) and have a need to restore it, any links in individual posts on the Announcement will be broken and have to be manually fixed.
Please contact support if you have any questions.