SSL port numbers serve as communication endpoints for transmitting or receiving data. One of the primary functions of these ports is to establish a secure connection between a web page and a website hosting server or the CDN/WAF that might sit in front of it. These add an extra layer of security by leveraging either Secure Sockets Layer (SSL) or Transport Layer Security (TLS) certificates for encryption.
At their core, HTTPS ports are identified using numerical codes.
Continue reading HTTPS Protocol: What is the Default Port for SSL & Common TCP Ports at Sucuri Blog.
