The team here at KeyCDN is always encouraging people to make the move to HTTPS for a number of reasons such as performance benefits, additional security, and even SEO advantages. We are constantly throwing around the HTTP and HTTPS acronyms and sometimes its important to understand the basics of how they work and some history behind them. So today we thought we would explore more in-depth the difference between HTTP and HTTPS, what they mean, and why it might be time for you to make the move to HTTPS. What is HTTP? HTTP stands for Hypertext Transfer Protocol. When you enter HTTP:// in your address bar in front of the domain, it tells the browser to connect over HTTP. HTTP uses TCP (Transmission Control Protocol), generally over port 80, to send and receive data packets over the web. To put it simply it is a protocol that’s used by a client and server which allows you to communicate with other websites. The client sends a request message to a HTTP server (also known as a TCP handshake) which hosts a website, the server then replies with the response message. The response message contains completion status information, such as “HTTP/1.1 200 OK”. TCP has had enhancements over the years
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