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Stands for Hypertext Transfer Protocol. HTTP is the protocol used to transfer data over the web. It is part of the Internet protocol suite and defines commands and services used for transmitting webpage data.
HTTP uses a server-client model. A client, for example, may be a home computer, laptop, or mobile device. The HTTP server is typically a web host running web server software, such as Apache or IIS. When you access a website, your browser sends a request to the corresponding web server and it responds with an HTTP status code. If the URL is valid and the connection is granted, the server will send your browser the webpage and related files.
Some common HTTP status codes include:
HTTP also defines commands such as GET and POST, which are used to handle form submissions on websites. The CONNECT command is used to facilitate a secure connection that is encrypted using SSL. Encrypted HTTP connections take place over HTTPS, an extension of HTTP designed for secure data transmissions.
NOTE: URLs that begin with http:// are accessed over the standard hypertext transfer protocol and use port 80 by default. URLs that start with https:// are accessed over a secure HTTPS connection and often use port 443.
* These videos are coming directly from Youtube, they may or may not be most relevant to the word "HTTP"