WikiFoundry offers a simple wiki content back-up solution for site Administrators and Creators. First, sign-in. Then navigate to the Settings area and click the next to last tab, ‘Backup'.
Backup - WikiFoundry Central

The back-up service will provide you with a zip file of the HTML output of current version wiki pages only. Extract the zip file to your desired location. You should be able to view the contents of your wiki pages in a browser. You can not import your backup back into your WikiFoundry Wiki.

Note: The larger your site is (a lot of pages, long pages, etc) the longer the backup process will take.

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