Can I ask a theoretical question about servers?

Question

API

Guys, hello everyone.
There was such a question.
There is a website site.com. It will have an api. But what would you like to end up with? So that this api would have a separate server and a separate database. But it would be available api.site.com on a subdomain, not a separate domain. Most likely this is a fantasy?
The idea is to reduce the load on the database and on the server as a whole. Therefore, we want to move the api to the second server.

Answer 1

So it is possible.
in dns you can specify a different server address for the subdomain.
Another option would be to redirect the request to another server in nginx/apache