Analytics and Tracking

OptimizelyOptimizely

Optimizely Usage Statistics · Download List of All Websites using Optimizely

Optimizely empowers companies to deliver more relevant and effective digital experiences on websites and mobile through A/B testing and personalization.

A/B Testing · Conversion Optimization · Personalization · Site Optimization

Yandex MetrikaYandex Metrika

Yandex Metrika Usage Statistics · Download List of All Websites using Yandex Metrika

A free Russian tool for increasing the conversion of the site. Watch for key performance site, analyze visitor behavior, evaluate the impact of advertising campaigns.

Audience Measurement · Conversion Optimization

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

Google Tag ManagerGoogle Tag Manager

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Tag management that lets you add and update website tags without changes to underlying website code.

Tag Management

Content Delivery Network

AJAX Libraries APIAJAX Libraries API

AJAX Libraries API Usage Statistics · Download List of All Websites using AJAX Libraries API

The AJAX Libraries API is a content distribution network and loading architecture for the most popular, open source JavaScript libraries.

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

ModernizrModernizr

Modernizr Usage Statistics · Download List of All Websites using Modernizr

Modernizr allows you to target specific browser functionality in your stylesheet.

Compatibility

yepnopeyepnope

yepnope Usage Statistics · Download List of All Websites using yepnope

yepnope is an asynchronous conditional resource loader that's super-fast, and allows you to load only the scripts that your users need.

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.

CSS Media Queries

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.

ResolutionResolution

Resolution Usage Statistics · Download List of All Websites using Resolution

Indicates the resolution (pixel density) of the output device. The resolution may be specified in either dots per inch (dpi) or dots per centimeter (dpcm). Used to change CSS based on output resolution.

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.