HTTPS (Secure hypertext Transfer Protocol) protocol overview
HTTPS is a secure communication channel that is developed based on HTTP and is used to exchange information between a client computer and a server. It uses Secure Sockets Layer (SSL) for information exchange, which simply means that it is a secure version of HTTP. It is developed by Netscape and built into its browser to compress and decompress data and return the results that are sent back on the network. HTTPS actually applies the Netscape Secure Sockets Layer (SSL) as a sub-layer of the HTTP application layer.
The difference between HTTPS and HTTP
First: The HTTPS protocol requires a certificate to the CA, the general free certificate is very small and requires a fee.
Second: HTTP is a Hypertext Transfer Protocol, the information is plaintext transmission, HTTPS is a secure SSL encryption transport protocol. As shown in the following:
Third: HTTP and HTTPS use a completely different way of connecting the port is not the same, the former is 80, the latter is 443.
The difference between HTTP and HTTPS