What is the HTTP protocol? What is the difference between HTTP and HTTPS?

Http protocol (Hypertext Transfer Protocol) is the main protocol for data transmission on the Internet. It is used to interact between web browsers and web servers, allowing you to receive and send data such as HTML pages, images, styles, javascript, etc.

HTTP operates on a client-server model, where the web browser acts as the client that sends requests, and the web server processes those requests and sends responses. The protocol is textual, which means that data is transmitted in the form of text messages.

HTTPS (Hypertext Transfer Protocol Secure) is an extension of the HTTP protocol using a protection layer (SSL or TLS) to provide an encrypted connection between the client and the server. The main difference between HTTP and HTTPS is that HTTPS ensures data security by encrypting the transfer of information between the client and the server.

Data encryption

In the case of HTTPS, the data that is transmitted between the client and the server is encrypted, making it more secure against third-party eavesdropping.

Server identification

HTTPS allows the server to verify its identity using a digital certificate. This helps to avoid the possibility of Man-in-the-Middle attacks.

Connection port

HTTP uses port 80 for connection, while HTTPS uses port 443. This allows servers to distinguish the type of connection.

The use of HTTPS is recommended for all websites, especially those where confidential or personal data are transferred.