Dreamweaver, like other HTML editors, edits files locally then uploads them to the remote web server using FTP, SFTP, or _.

Basm allah alrahman alrahim

WEBDAV

Yes,  mostly this how it works.

You can also use the built in FTP settings to do live editing as well.

Hi friend,

It usually use FTP protocole to launch Files into server.

You can see more in site above:

https://helpx.adobe.com/dreamweaver/using/getting-putting-files-server.html

Not the answer which i was looking 

There are three protocols FTP, SFTP and ________________... (What is the thirds protocol name?)