Web Servers

ApacheApache

Apache Usage Statistics · Download List of All Websites using Apache

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

Operating Systems and Servers

DebianDebian

Debian Usage Statistics · Download List of All Websites using Debian

Debian is a free operating system (OS) for your computer.

Document Standards

HTML 4.01 Transitional DTDHTML 4.01 Transitional DTD

HTML 4.01 Transitional DTD Usage Statistics

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

Content Style TypeContent Style Type

Content Style Type Usage Statistics

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

Cache ControlCache Control

Cache Control Usage Statistics

Cache Control setting on the page to provide caching performance gains.

Meta KeywordsMeta Keywords

Meta Keywords Usage Statistics

Meta tag containing keywords related to the page.

Meta DescriptionMeta Description

Meta Description Usage Statistics

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

Revisit AfterRevisit After

Revisit After Usage Statistics

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

Meta RobotMeta Robot

Meta Robot Usage Statistics

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