Analytics and Tracking

Google Conversion TrackingGoogle Conversion Tracking

Google Conversion Tracking Usage Statistics · Download List of All Websites using Google Conversion Tracking

This free tool in AdWords can show you what happens after customers click your ad (for example, whether they purchased your product, called from a mobile phone or downloaded your app).

Conversion Optimization

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.

DoubleClick FloodlightDoubleClick Floodlight

DoubleClick Floodlight Usage Statistics · Download List of All Websites using DoubleClick Floodlight

Floodlight is feature of DoubleClick ads that allows advertisers to capture and report on the actions of users who visit their website after viewing or clicking on one of the advertiser's ads.

Facebook SignalFacebook Signal

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

Journalists use Signal to surface relevant trends, photos, videos and posts from Facebook and Instagram for use in their storytelling and reporting.

Global Site TagGlobal Site Tag

Global Site Tag Usage Statistics · Download List of All Websites using Global Site Tag

Google's primary tag for Google Measurement/Conversion Tracking, Adwords and DoubleClick.

Google Conversion LinkerGoogle Conversion Linker

Google Conversion Linker Usage Statistics · Download List of All Websites using Google Conversion Linker

Detects the ad click information in your conversion page URLs and stores this information to associate an ad click with a conversion.

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.

Programming Language

Ruby on Rails TokenRuby on Rails Token

Ruby on Rails Token Usage Statistics · Download List of All Websites using Ruby on Rails Token

Ruby on Rails is an open-source web framework that is optimized for programmer happiness and sustainable productivity. Note that Ruby on Rails has two detection techniques and this is one of them.

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.

Content Delivery Network

CDN JSCDN JS

CDN JS Usage Statistics · Download List of All Websites using CDN JS

CloudFlare's CDN with popular javascript frameworks available.

jsDelivrjsDelivr

jsDelivr Usage Statistics · Download List of All Websites using jsDelivr

A free CDN (Content Delivery Network) where Javascript developers can host their files.

GStatic Google Static ContentGStatic Google Static Content

GStatic Google Static Content Usage Statistics · Download List of All Websites using GStatic Google Static Content

Google has off-loaded static content (Javascript/Images/CSS) to a different domain name in an effort to reduce bandwidth usage and increase network performance for the end user.

UNPKGUNPKG

UNPKG Usage Statistics · Download List of All Websites using UNPKG

unpkg is a fast, global content delivery network for everything on npm.

Content Management System

Yii FrameworkYii Framework

Yii Framework Usage Statistics · Download List of All Websites using Yii Framework

Yii is a high-performance PHP framework best for developing Web 2.0 applications.

JavaScript Libraries and Functions

jQueryjQuery

jQuery Usage Statistics · Download List of All Websites using jQuery

JQuery is a fast, concise, JavaScript Library that simplifies how you traverse HTML documents, handle events, perform animations, and add Ajax interactions to your web pages. jQuery is designed to change the way that you write JavaScript.

JavaScript Library

jQuery CountdownjQuery Countdown

jQuery Countdown Usage Statistics · Download List of All Websites using jQuery Countdown

A jQuery plugin that sets a div or span to show a countdown to a given time.

jQuery Plugin

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.

Social SDK

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.

Social SDK

jQuery UIjQuery UI

jQuery UI Usage Statistics · Download List of All Websites using jQuery UI

jQuery UI provides abstractions for low-level interaction and animation, advanced effects and high-level, themeable widgets, built on top of the jQuery JavaScript Library, that you can use to build highly interactive web applications.

jQuery Plugin · UI

OWL CarouselOWL Carousel

OWL Carousel Usage Statistics · Download List of All Websites using OWL Carousel

Touch enabled jQuery plugin that lets you create a carousel slider.

Slider

JCarousel LiteJCarousel Lite

JCarousel Lite Usage Statistics · Download List of All Websites using JCarousel Lite

jCarousel Lite is a jQuery plugin that carries you on a carousel ride filled with images and HTML content.

jQuery Plugin · Slider

RespondRespond

Respond Usage Statistics · Download List of All Websites using Respond

A fast & lightweight polyfill for min/max-width CSS3 Media Queries (for IE 6-8, and more)

Compatibility

Advertising

DoubleClick.NetDoubleClick.Net

DoubleClick.Net Usage Statistics · Download List of All Websites using DoubleClick.Net

DoubleClick enables agencies, marketers and publishers to work together successfully and profit from their digital marketing investments.

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

Google Floodlight CounterGoogle Floodlight Counter

Google Floodlight Counter Usage Statistics · Download List of All Websites using Google Floodlight Counter

The Floodlight Counter tag allows you to count the number of times someone visits your site after clicking on an advertisement for it.

Email Hosting Providers

SPFSPF

SPF Usage Statistics · Download List of All Websites using SPF

The Sender Policy Framework is an open standard specifying a technical method to prevent sender address forgery.

Standard

Operating Systems and Servers

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.

CSS Media Queries

Max WidthMax Width

Max Width Usage Statistics · Download List of All Websites using Max Width

Media query to limit CSS to display for devices with a maximum width defined.

Min WidthMin Width

Min Width Usage Statistics · Download List of All Websites using Min Width

A CSS media query to display specific CSS if a device greater than the minimum width specified.

Device WidthDevice Width

Device Width Usage Statistics · Download List of All Websites using Device Width

Describes the width of the output device (meaning the entire screen or page, rather than just the rendering area, such as the document window).

Device Pixel RatioDevice Pixel Ratio

Device Pixel Ratio Usage Statistics · Download List of All Websites using Device Pixel Ratio

A media query to display different CSS based on the device pixel ratio. Standard screens have a pixel ratio of 1, retina devices have a pixel ratio greater than 1.

Content Delivery Network

Content Delivery NetworkContent Delivery Network

Content Delivery Network Usage Statistics · Download List of All Websites using Content Delivery Network

This page contains links that give the impression that some of the site contents are stored on a content delivery network.

Web Master Registration

Google WebmasterGoogle Webmaster

Google Webmaster Usage Statistics · Download List of All Websites using Google Webmaster

Webmaster tools provide you with a free and easy way to make your site more Google-friendly.