What's the difference between HTTP and HTTPS?

HTTPS requires you to apply for a Certificate from the Certificate Authority (CA). CA Baidu Encyclopedia
HTTP is a hypertext transfer protocol. Information is transmitted in plain text. HTTPS is a secure SSL encryption transfer protocol. SSL Baidu Encyclopedia
HTTPS and HTTP use completely different connection methods and different ports, HTTPS is 443 and HTTP is 80.
HTTP is a simple and stateless connection (stateless: data is sent, transmitted, and received independently). HTTPS is a network protocol constructed using SSL and HTTP to encrypt transmission and authenticate identity. HTTPS is more secure than HTTP

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