A website (or Web site, according to Associated Press guidelines) is a collection of Web pages, typically common to a particular domain name or subdomain on the World Wide Web on the Internet.
To date, there are over 81 million websites in the world with registered domains.
A web page is an HTML/XHTML document that is almost always accessible via HTTP.
All publicly accessible websites are seen as constituting a mammoth "World Wide Web" of information.
The pages of a website will be accessed from a common root URL called the homepage, and usually reside on the same physical server. The URLs of the pages organise them into a hierarchy, although the hyperlinks between them control how the reader perceives the overall structure and how the traffic flows between the different parts of the sites.
Some websites require a subscription to access some or all of their content. Examples of subscription sites include many Internet pornography sites, parts of many news sites, gaming sites, message boards, Web-based e-mail services and sites providing real-time stock market data.
Websites are written in, or dynamically converted to, HTML (Hyper Text Markup Language) and are accessed using a software program called a web browser, also known as a HTTP client. Web pages can be viewed or otherwise accessed from a range of computer based and Internet enabled devices of various sizes, examples of which include desktop computers, laptop computers, PDAs and cell phones.
A website is hosted on a computer system known as a web server, also called an HTTP server, and these terms can also refer to the software that runs on these system and that retrieves and delivers the web pages in response to requests from the website users. Apache is the most commonly used web server software (according to Netcraft statistics) and Microsoft's Internet Information Server (IIS) is also commonly used.
A static website, is one that has content that is not expected to change frequently and is manually maintained by some person or persons using some type of editor software. There are two broad categories of editor software used for this purpose which are
A dynamic website is one that has frequently changing information or interacts with the user from various methods (HTTP cookies or database variables e.g., previous history, session variables, server side variables, e.g., environmental data, etc.) or direct interaction (form elements, mouseovers, etc. When the web server receives a request for a given page, the page is automatically generated by the software in direct response to the page request; thus opening up many possibilities including for example: a site can display the current state of a dialogue between users, monitor a changing situation, or provide information in some way personalized to the requirements of the individual user.
A mobile website is one that is viewable on smartphones and PDAs.
There are a large range of software systems, such as Active Server Pages (ASP), Java Server Pages (JSP) and the PHP programming language that are available to generate dynamic web systems and dynamic sites also often include content that is retrieved from one or more databases or by using XML-based technologies such as RSS.
Static content may also be dynamically generated periodically or if certain conditions for regeneration occur (cached) to avoid the performance loss of initiating the dynamic engine on a per-user or per-connection basis.
Plugins are available for browsers, which use them to show active content, such as Flash, Shockwave or applets written in Java. Dynamic HTML also provides for user interactivity and realtime element updating within Web pages (i.e., pages don't have to be loaded or reloaded to effect any changes), mainly using the DOM and JavaScript, support for which is built-in to most modern browsers.
The Canadian Oxford Dictionary and the Canadian Press Stylebook list "website" and "web page" as the preferred spellings.
The term is also occasionally misspelled as "web sight" or "websitte".
Some sites may be included in one or more of these categories. For example, a business website may promote the business's products, but may also host informative documents, such as white papers. There are also numerous sub-categories to the ones listed above. For example, a porn site is a specific type of eCommerce site or business site (that is, it is trying to sell memberships for access to its site). A fan site may be a vanity site on which the administrator is paying homage to a celebrity.
Many business Websites have the appearance of brochures—that is, an advertisement that can be strolled around. Some websites act as vehicles for users to communicate with other people via webchat.
Websites are constrained by architectural limits (e.g. the computing power dedicated to the Website). Very large websites, such as Yahoo!, Microsoft, and Google, employ many servers and load balancing equipment, such as Cisco Content Services Switches.
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