WebDAV is an important File transfer protocol was developed in the nineties to enable Secure File transfer and collaboration. WebDAV ports allow you to use standardized ports to transfer across various protocols.
What Ports Do I use for WebDAV?
Web dev ports you can use Include port 80 and port 443.
WebDAV Ports and Their Meanings
What that port 80 is for standard connections and web data port 443 is for more secure connections.
What Ports are WebDAV Specific
WebDAV ports 80 is specific to WebDAV.
WebDAV ports 443 is specific to WebDAV.