THEATRON.NET

Apache has been the most popular web server on the Internet since April 1996.

PHP is a widely-used general-purpose scripting language that is especially suited for Web development and can be embedded into HTML.

The website claims HTML 4.01 Transitional DTD, which includes presentation attributes and elements that W3C expects to phase out as support for style sheets matures.

W3C Recommended definition of the type of stylesheets used in a document.

This page contains a meta robots tag which tells search engines and robots to index or not index the page.

Several search engines use this meta tag to find out when they should revisit a certain page.

The description attribute provides a concise explanation of the page content.

Meta tag containing keywords related to the page.

Cascading Style Sheets (CSS) is a stylesheet language used to describe the presentation of a document written in a markup language. Its most common application is to style web pages written in HTML

JavaScript is a scripting language most often used for client-side web development. Its proper name is ECMAScript, though "JavaScript" is much more commonly used. The website uses JavaScript.