KSO.PL

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

Polish web stats.

HTML5 IE enabling script shim.

The DOCTYPE is a required preamble for HTML5 websites.

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.

Meta tag containing keywords related to the page.

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

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.

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

This page contains tags that are specific to an HTML 5 implementation.

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.

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