Another name for HTTP is Hypertext Transfer Protocol. The moment you type HTTP:// next to a domain in your URL bar, it instructs the browser to link over HTTP. HTTP sends and receives data packets over the internet using TCP (Transmission Control Protocol). It sends data via port 80 that accounts for all the unencrypted web traffic. In essence, it’s a client-server model that helps you to connect with other websites. Once the TCP connection is built, the client sends a message request to have access to the website which is hosted by the HTTP server. The server then responds with a reply message. The answer message includes information about the completion status, such as HTTP/1.1 200 OK.
What does HTTPS mean?
Hypertext Transfer Protocol Secure (HTTPS) is a secure version of the HTTP protocol. If you type HTTPS:// right in front of a domain in your URL bar, it tells the browser to link over HTTPS. In most cases, HTTPS sites will have a redirect in location, although if you enter in HTTP:// you’ll be redirected to a safe link. TCP (Transmission Control Protocol) is used by HTTPS to transmit and receive packets of data. When a browser establishes an HTTPS link, it sends a TCP request to port 443 to establish a connection. The data sent between the client and the server is encrypted during this process.
Key Differences between HTTP and HTTPS:-
- No encryption in HTTP, while in HTTPS, the data is encrypted before sending.
- HTTP sends data over port 80 while HTTPS uses port 443.
- HTTP is unsecured while HTTPS is secured. .
- HTTP operates at the application layer, while HTTPS operates at the transport layer.