Websites can have many functions and can be used in various fashions; a website can be a personal website, a commercial website for a company, a government website or a non-profit organization website.
Documents were most often presented as plain text files without formatting, or were encoded in word processor formats.
As of 2017, end users can access websites on a range of devices, including desktop and laptop computers, tablet computers, smartphones and smart TVs.
Before the introduction of HTML and HTTP, other protocols such as File Transfer Protocol and the gopher protocol were used to retrieve individual files from a server.
Audio or video might also be considered "static" content if it plays automatically or is generally non-interactive.
This type of website usually displays the same information to all visitors.
Some websites require user registration or subscription to access content.