So I, as an SEO amateur, imagine that if I stick an invisible link to one property "A" on every page of another "B", where there are roughly 20,000 pages that get 500 pageviews/month each (this is all rough math because I'm lazy) that it will somehow help my SEO for website "A".
Literally, a link, that the user can't see. Does this help at all? If not, are there any automated things that require no user interaction that can?
Thanks peoples

And I'm not talking about invisible join links either