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Showing posts from November 19, 2018

HTTP & HTTPS

What is HTTP? HTTP stands for Hypertext Transfer Protocol. It is a communications protocol and is used to send and receive web pages and files over the internet. HTTP works by using a user agent (e.g. a browser) to connect to a server. The server must be located using a URL or URI. This always contains   http://  at the start. It normally connects to port 80 on a computer. What is HTTPS? HTTPS stands for Hypertext Transfer Protocol Secure. This is a more secure version of HTTP and starts with  https://  at the beginning of the URL. It encrypts all the information that is sent and received. This can stop malicious users such as hackers from stealing the information and is often used on payment websites. HTTPS uses port  443  for communication instead of port 80. What is an HTTP Request? HTTP stands for Hypertext Transfer Protocol and is a way of sending messages from one computer to another computer over the internet. An HTTP request is sent to a specific URL and c