Versioning in the subdomain

In regard to versioning in the URL, subdomain versioning puts the version within the URI but associated with the domain, like so:

https://v1.api.domain.com/
https://v2.api.domain.com/
https://v3.api.domain.com/

This is quite similar to versioning at the end of the URI. One of the advantages of using a subdomain strategy is that your API can be hosted on different servers.