Port 80 and Port 441 are both used for different types of internet communication. Port 80 is the default port for HTTP (Hypertext Transfer Protocol) traffic, which is used for the majority of web traffic. Port 441 is not a commonly used port and is not a well-known port. It is not assigned to any specific service or protocol by default. Some possible uses for Port 441 could be for a custom application or service, or as a non-standard port for HTTP traffic

I get the feel that the question implies the ports are actual “things.” They aren’t.

TCP traffic gets a number attached to it usually called a port number – but that is misleading. A better name would be a service number. The traffic is transmitted over the exact same lines or broadcast through the same radios, through the exact same pieces of hardware, until the receiving computer opens the message and reads it. At that point the receiving computer has to decide which program or service should get the message. This is where it looks in a table to see which pieces of software have registered themselves for that port number.

Usually it is a webserver that has registered itself to receive messages tagged with the number 80 – but nothing guarantees it. I have written programs that respond to port 80 requests.

Port 80 and Port 441 are both network ports, but they are used for different purposes. Port 80 is the default port for unencrypted HTTP traffic, while Port 443 is the default port for encrypted HTTPS traffic.

  • Port 80: Port 80 is the default port for unencrypted HTTP traffic. This means that all data sent between the client and server is in plain text, which can be easily intercepted by third parties. Port 80 is still used by some websites, but it is generally considered to be insecure.
  • Port 443: Port 443 is the default port for encrypted HTTPS traffic. This means that all data sent between the client and server is encrypted, which makes it much more difficult for third parties to intercept. Port 443 is the preferred port for all websites that handle sensitive data, such as passwords and credit card numbers.

In summary, the main difference between Port 80 and Port 443 is security. Port 80 is used for unencrypted HTTP traffic, while Port 443 is used for encrypted HTTPS traffic. Port 443 is the preferred port for all websites that handle sensitive data.

Port 441 is not a commonly used port. It is associated with the DECvms-sysmgt protocol, which is used for system management on Digital Equipment Corporation (DEC) computers.