[R-pkg-devel] Invalid URLs in Description Due to Redirection

[Dr. rer. nat. Michael Thrun]

Dear R developers,
I have several packages on CRAN and usually I can resolve all issues without bothering others in the mailing list. However, in this case I am stuck with the following note for 
my package https://CRAN.R-project.org/package=FCPS which enables access to over 60 clustering algorithms with consistent input and output:

“
Found the following 
(possibly) invalid URLs:
 URL: 
https://www.deepbionics.org/ (moved to 
https://mthrun.github.io/index)
   From: 
DESCRIPTION
   Status: 200
   Message: 
OK

Please change http --> https, add trailing 
slashes, or follow moved content as 
appropriate.
“

The URL  https://www.deepbionics.org/  redirects currently to gihub.io. My problem with the proposed solution in the note is, that I will probably move the website again somewhere else in the future.
Adding slashes did not resolve the note. For the current update, I just deleted the URL, but someday I would like to update my other packages or this one again. Hence, I have to solve this issue permanently.
Thus, I would like to be able to link the packages to a stable URL and not update packages every time, I move the website.
Does someone know, how to resolve this issue?
Should I use another redirection option in the settings of my hosting provider?
Should I implement an entry website using my hosting provider for deepbioonics.org which redirects the user after 5 seconds to the current website?

Best Regards
Michael