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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 XHTML strict. XHTML Strict is the same as HTML 4.01 Strict but follows XML guidelines. See the link for more information.

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

Meta tag containing keywords related to the page.

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.

Allows webmasters to disable the image toolbar that appears when hovering over images in Internet Explorer 6.

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

The website uses conditional comments that are supported by Microsoft Internet Explorer. They allow web developers to show or hide HTML code based on the version of the viewer's browser.

UTF-8 (8-bit UCS/Unicode Transformation Format) is a variable-length character encoding for Unicode. It is the preferred encoding for web pages.

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