The difference between HTTPS and http:

The HTTPS protocol requires a certificate to be applied to the CA, and the general free certificate is very small and requires a fee.
HTTP is a Hypertext Transfer Protocol, the information is plaintext transmission, HTTPS is a secure SSL encryption transport protocol
HTTP and HTTPS use a completely different connection method with the same port, the former is 80, the latter is 443.
The HTTP connection is simple and stateless.
HTTPS protocol is a network protocol built by Ssl+http protocol which can encrypt transmission and authentication, which is more secure than HTTP protocol.

The difference between HTTPS and http: