What is HTTP?

The Hypertext Transfer Protocol (HTTP) is a simple over-mature HTTP protocol that provides a compact vocabulary to specify resources. HTTP is modelled after the HTTP protocol for general-purpose protocols. The Hypertext Transfer Protocol identifies and requests information from other web servers. The Hypertext Transfer Protocol also serves to identify the different types of media objects which may be transmitted over the Internet like files, charts, webpages, hypertext, and other types of documents. It also encodes the requestor’s metadata and response structure. The Hypertext Transfer Protocol, a transport-layer protocol, manages connections between a client and a server.

HTTP was first released in 1993 and was originally developed by Tim Berners-Lee as an Internet project. The original intent was to provide a means for users to access information on the Internet from a personal computer. To achieve this goal, a standardized format for identifying headers was developed, and HTTP was formally accepted. The primary difference between HTTP and other protocols for web services is that data is sent in a standard format, and the method of transfer is negotiated at the time of connection rather than at the time of communication.

An HTTP response consists of two main parts, a header, and a body. A body is also called an embedded body and is sent along with the request before the actual request/response. The HTTP protocol also allows the negotiation of authentication methods and provides a mechanism for resource management. This article will discuss the basic features of HTTP.

HTTP is modelled on the TCP/IP protocol but offers many advantages over TCP/IP. HTTP is a free protocol, and there are no network administrators to dictate what its use is. Second, unlike TCP/IP, HTTP does not restrict the transport of traffic between servers. Third, unlike TCP/IP, HTTP does not use any reference counting mechanism; rather, it maintains a list of sockets for each address, requiring addresses to be broadcasted every time a URL is used. These factors lead to a fast and efficient application delivery with little or no congestion.

HTTP is designed so that well-formed requests can be fulfilled efficiently by clients without the server keeping track of the server’s internal state. One way this is achieved is by the reuse of resources. A common example is a common web application using a single database. The application uses a `GET` method to retrieve information from the database and sends the same request to the server again. The server responds by only sending the requested information without keeping track of the application’s original state.

There are several advantages to using an external HTTP viewer. It simplifies the process of composing a web browser application by allowing the developer to see the source code. An external HTTP viewer can inspect the HTTP request message, determining whether it matches the expected parameters and returning an HTTP response. The source code for a reusable web application is kept separate from the HTTP server and can be accessed independently to create reusable web applications.

An example of this is the Hypertext Preprocessor, which renders output HTML using the HTTP protocol’s textual format. The HTTP protocol defines the structure and semantics of HTTP messages. This includes the Status line, which provides an indication of whether the client successfully sent an HTTP request message and whether the method was successful. The Status line is displayed as a colored background, indicating a successful operation, green otherwise.

While Hypertext Transfer Protocol was originally developed for the Internet, it is a fundamental part of the World Wide Web. Websites use HTTP to exchange dynamic web content such as images and hyperlinks. Hypertext Markup Language (HTML) is a set of markup languages used to define hypertext structures, and the most commonly used markup language in the world, Hypertext Markup Language (HTML), can be used to author documents.

Digital Technology Glossary