There are a wide range of software systems, such as CGI, Java Servlets and Java Server Pages (JSP), Active Server Pages and Cold Fusion (CFML) that are available to generate dynamic web systems and dynamic sites.
Various web application frameworks and web template systems are available for general-use programming languages like Perl, PHP, Python and Ruby to make it faster and easier to create complex dynamic websites.
Any website can contain a hyperlink to any other website, so the distinction between individual sites, as perceived by the user, can be blurred.
Websites are written in, or converted to, HTML (Hyper Text Markup Language) and are accessed using a software interface classified as a user agent.
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.