How come, they don't seem to resolve to anything? I tried both via my browser and curl. I can see the records and if i curl the ip-address for the dk-records I

How come, they don't seem to resolve to anything? I tried both via my browser and curl. I can see the records and if i curl the ip-address for the dk-records I only get a nginx 301 redirect loop to the http-s version which serves a certificate for https://eksempel.dk https://eksempel.dk. Similar exprience with ai, curling the ip seems to point to a http://offshore.ai http://offshore.ai page. Is the top level A-records used for some other protocol? Do they server any purpose?