Today did I switch my site to GitHub Pages for various reasons and with that also got a new domain.
Using cloudflare as DNS manager (obviously) did I setup a CNAME record with name www that points to my github.io subdomain (andre601.github.io) which works fine.
To make sure that requests are rerouted to the www domain did I also setup a Page rule with URL Forwarding that forwards andre601.ch/* to https://www.andre601.ch/$1
Now to the issue: When I directly type the domain in my browser is it redirecting just fine. If, however, I open the link through clicking on it on pages like Twitter or Discord will the forward not happen for whatever reason and I face the “Site not available” screen of my browser.
Why is that happening? And what can I do against this?
Do I require a separate dummy DNS entry for @, so that the page rule will work as expected?