Works without the dot for me. (Not the https variant though.)
Re:This is a valid domain name (remove www)
by selcuka on Thursday June 09, 2022 @11:29PM
(#31689657)
Yes, it worked for me too (Firefox). Interestingly http://ai goes to http://www.ai.com while http://ai/ works. ¯\_(ツ)_/¯
Edit: The HN generated link does not work because it appends a trailing slash to the end.