What do you call the entire first part of a URL?

Question

If I have a URL like:

http://www.example.com:9090/test.html

Then I know that www.example.com is the host name, but what do you call http://www.example.com:9090? Is there some kind of established name for that?

Answer 1

I don't know the name for when it has the scheme, but the hostname with the port is collectively known as the Authority. A nice explanation here.