Hello everyone,
This section describes the differences between HTTPS port 443 and port 8443.
What is HTTPS?
Hyper Text Transfer Protocol over Secure Socket Layer (HTTPS) is a secure HTTP channel, which is simply a secure version of HTTP. HTTPS is equivalent to adding an SSL layer to HTTP. The security basis of HTTPS is SSL. Therefore, SSL is required for encrypted content. HTTPS has a different default port than HTTP and an encryption/authentication layer (between HTTP and TCP) that provides authentication and encrypted communication methods.
What is the 443 port of HTTPS?
You can think of port 443 as a web browsing port used to secure web browser communications or HTTPS services.
It will provide encryption and transmission over a secure port. As a result, the data you transmit over this connection is highly resistant to third-party eavesdropping and interruptions.
Although port 443 is a standard port for HTTPS communication, HTTPS port 443 can also support HTTP sites. If the site uses HTTPS but cannot load over port 443, port 80, which handles all unencrypted HTTP web traffic, steps in to load the HTTPS-enabled site.
What is the 8443 port of HTTPS?
Tomcat uses port 8443 for SSL HTTPS traffic. To avoid SSL port conflicts, use 8443 for Tomcat. It is not in the protected system port range. This helps to avoid port conflicts when setting up proxy/caching server traffic for ports, etc.
What is the difference between HTTPS 443 port and 8443 port?
When accessing port 8443, you need to add a port number, which is equivalent to 8080 of HTTP. You cannot directly access port 8443 by using a domain name. You need to add a port number, for example, https://www.XXXX.com:8443.
Port 443 does not need to be added to the port. It is equivalent to 80 of the HTTP port. You can directly access the port through the domain name. For example,https://www.XXXX.com.
That is all I want to share with you!

