A report on Hypertext Transfer Protocol and Web server

When a user requests a web page from a particular website, the web browser retrieves the necessary content from a web server and then displays the page on the user's device.

In Hypertext Transfer Protocol technical texts, web browsers (and other clients) are commonly referred to as user agents.

Hypertext Transfer Protocol Secure (HTTPS) is an extension of the Hypertext Transfer Protocol (HTTP).

This is the case with HTTP transactions over the Internet, where typically only the server is authenticated (by the client examining the server's certificate).

A website (also written as web site) is a collection of web pages and related content that is identified by a common domain name and published on at least one web server.

Before the introduction of the Hypertext Transfer Protocol (HTTP), other protocols such as File Transfer Protocol and the gopher protocol were used to retrieve individual files from a server.

Web browsers receive HTML documents from a web server or from local storage and render the documents into multimedia web pages.

However, they are most often delivered either by HTTP from a web server or by email.

This element specifies the communication endpoint the data entered into the form should be submitted to, and the method of submitting the data, or.

CGIs may be written in other languages than Perl (compatibility with multiple languages is a design goal of the CGI protocol) and there are other ways to make Perl scripts interoperate with a web server than using CGI (such as FastCGI, Plack or Apache's mod_perl).

As the crawler visits these URLs, by communicating with web servers that respond to those URLs, it identifies all the hyperlinks in the retrieved web pages and adds them to the list of URLs to visit, called the crawl frontier.

Endless combinations of HTTP GET (URL-based) parameters exist, of which only a small selection will actually return unique content.

The term virtual hosting is usually used in reference to web servers but the principles do carry over to other Internet services.

A technical prerequisite needed for name-based virtual hosts is a web browser with HTTP/1.1 support (commonplace today) to include the target hostname in the request.

A forward cache is a cache outside the web server's network, e.g. in the client's web browser, in an ISP, or within a corporate network.

A proxy server sitting between the client and web server can evaluate HTTP headers and choose whether to store web content.

HTTP has been in use since 1990, HTML, as standard, since 1996.

A program running on a web server (server-side scripting) is used to generate the web content on various web pages, manage user sessions, and control workflow.

CERN httpd (later also known as W3C httpd) is an early, now discontinued, web server (HTTP) daemon originally developed at CERN from 1990 onwards by Tim Berners-Lee, Ari Luotonen and Henrik Frystyk Nielsen.