Do you mean that domain would be masked as mainpage.com or that it simply forwards the user on and the URL changes visibly in the address bar?
Simple redirection is easy, and can be done at the domain provider. Masking that url as something its technically not, is less easy. Dare I say, not possible in Webflow
No it doesn’t need to mask it as anything. It’s fine for people to see mainpage. com/pagename once they’re there.
All I want is for newdomainname. com to deliver visitors to that page. I thought it should be easy until I saw someone ask a similar question somewhere else and then got confused.
So I’d just set that up at the domain provider and have that new domain point to the subpage, right?
Correct. There should be an option for Redirects/forwarding. I have sometimes seen no such option where the domain has been purchased using a website builder, but other domain providers will have this option around the DNS settings for that domain and allows a page to be specified.