The HTTP Header
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People who are just starting to learn HTML may hear developers terms such as HTTP header and simply think that it is the same with a header of an HTML document. Big Mistake. The HTML header is anything you write in between the
tags. The HTML header usually contains information about the page. The author provides the info for the client. The HTTP header, otherwise, is information the client and the server provides with each other regarding the transmission process of the document. Think of the HTML header as the date and address written at the top of a business letter, while the HTTP header is the address written on the envelope. They are both addresses, written in two different locations.The HTTP header contains details about the transaction between the client and server, with slight variations depending on whether it is a request or a response. The header information can be grouped into three different categories. Namely, General, Entity, and Request/Response
Filed under: Basic Programming by Celine