Analytics and Tracking

Facebook PixelFacebook Pixel

Facebook Pixel Usage Statistics · Download List of All Websites using Facebook Pixel

Facebook Pixel is Facebooks conversion tracking system for ads on Facebook to websites.

Frameworks

PHPPHP

PHP Usage Statistics · Download List of All Websites using PHP

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

Viewport MetaViewport Meta

Viewport Meta Usage Statistics · Download List of All Websites using Viewport Meta

This page uses the viewport meta tag which means the content may be optimized for mobile content.

Mobile Non Scaleable ContentMobile Non Scaleable Content

Mobile Non Scaleable Content Usage Statistics · Download List of All Websites using Mobile Non Scaleable Content

This content is formatted for mobile devices, it does not allow the content to be scaled.

Content Management System

TYPO3TYPO3

TYPO3 Usage Statistics · Download List of All Websites using TYPO3

TYPO3 Content Management Framework for enterprise purposes on the web and in intranets written in PHP.

Community CMS · Enterprise · Open Source

JavaScript Libraries and Functions

Facebook for WebsitesFacebook for Websites

Facebook for Websites Usage Statistics · Download List of All Websites using Facebook for Websites

Allows a user to make a website more sociable and connected with integrations from the hugely popular Facebook website.

Facebook SDKFacebook SDK

Facebook SDK Usage Statistics · Download List of All Websites using Facebook SDK

JavaScript SDK enables you to access all of the features of the Graph API via JavaScript, and it provides a rich set of client-side functionality for authentication and sharing. It differs from Facebook Connect.

Verified Link

GitHubGitHub

GitHub Usage Statistics · Download List of All Websites using GitHub

The website mentions github.com in some form.

Advertising

Facebook Custom AudiencesFacebook Custom Audiences

Facebook Custom Audiences Usage Statistics · Download List of All Websites using Facebook Custom Audiences

Custom Audiences from your website makes it possible to reach people who visit your website and deliver the right message to them on Facebook.

Retargeting / Remarketing

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

FedoraFedora

Fedora Usage Statistics · Download List of All Websites using Fedora

Fedora is a Linux-based operating system that showcases the latest in free and open source software. Fedora is always free for anyone to use, modify, and distribute. It is built by people across the globe who work together as a community: the Fedora Project.

OpenSSLOpenSSL

OpenSSL Usage Statistics · Download List of All Websites using OpenSSL

The OpenSSL Project is a collaborative effort to develop a robust, commercial-grade, full-featured, and Open Source toolkit implementing the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols as well as a full-strength general purpose cryptography library.

Document Encoding

UTF-8UTF-8

UTF-8 Usage Statistics

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

Document Standards

HTML5 DocTypeHTML5 DocType

HTML5 DocType Usage Statistics

The DOCTYPE is a required preamble for HTML5 websites.

X-UA-CompatibleX-UA-Compatible

X-UA-Compatible Usage Statistics

Allows a website to define how a page is rendered in Internet Explorer 8, allowing a website to decide to use IE7 style rendering over IE8 rendering.

Google Chrome IE FrameGoogle Chrome IE Frame

Google Chrome IE Frame Usage Statistics

Frames Google Chrome window into Internet Explorer for HTML 5 compatibility.

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.

Open Graph ProtocolOpen Graph Protocol

Open Graph Protocol Usage Statistics

The Open Graph protocol enables any web page to become a rich object in a social graph, a open protocol supported by Facebook

Twitter CardsTwitter Cards

Twitter Cards Usage Statistics

Twitter cards make it possible for you to attach media experiences to Tweets that link to your content.

Cascading Style SheetsCascading Style Sheets

Cascading Style Sheets Usage Statistics

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

Canonical Content TagCanonical Content Tag

Canonical Content Tag Usage Statistics

Public specification of a preferred URL for a page allows search engines to understand the original location for content.

HTML 5 Specific TagsHTML 5 Specific Tags

HTML 5 Specific Tags Usage Statistics

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

HTML 5 Video Audio TagsHTML 5 Video Audio Tags

HTML 5 Video Audio Tags Usage Statistics

This page contains HTML5 style media tags. HTML5 is the proposed next standard for HTML 4.01, XHTML 1.0 and DOM Level 2 HTML.

WAI-ARIAWAI-ARIA

WAI-ARIA Usage Statistics

A way to make Web content and Web applications more accessible to people with disabilities. It especially helps with dynamic content and advanced user interface controls developed with Ajax, HTML, JavaScript, and related technologies.

JavascriptJavascript

Javascript Usage Statistics

JavaScript is a scripting language most often used for client-side web development.