Suggestion by Ego is clever (as always :)).
Note: if doing this, don't miss the "next page" button.
Unfortunately, I guess you would may still miss newly added pages. (If these are forgotten from being added to an index.)
From related ... https://forums.whonix.org/t/want-a-local-backup-of-whonix-wiki-contents-replicating-whonix-org-wiki/1875 ... - Perhaps we should automate https://github.com/Whonix/whonix-wiki-backup on whonix.org server to always provide a fresh git backup. (git pull requests there not supported, it's only a backup dump)
Does any of these options work for you?