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Rack::Cache is a component to enable HTTP caching for Rack-based applications such as Rails.

nginx [engine x] is a HTTP server and mail proxy server written by Igor Sysoev.

Phusion PassengerT - a.k.a. mod_rails or mod_rack - makes deployment of Ruby web applications, such as those built on the revolutionary Ruby on Rails web framework, a breeze.

This site is hosted on Amazon infrastructure.

Amazon's scalable DNS web service system.

SendGrid's cloud-based email infrastructure provides businesses with email delivery management.

Web-based email, calendar, and documents for teams.

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.

Ruby on Rails is an open-source web framework that is optimized for programmer happiness and sustainable productivity.

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

New Relic is a dashboard used to keep an eye on application health and availability while monitoring real user experience.

This is an analytic platform that is particularly optimized funnel/work-flow optimization.

Google Analytics offers a host of compelling features and benefits for everyone from senior executives and advertising and marketing professionals to site owners and content developers.

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

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.

LazyLoad is a tiny (only 998 bytes minified and gzipped), dependency-free JavaScript library that makes it super easy to load external JavaScript and CSS files on demand.

Allows users to Like items they find on the web, similar to how you Like items within Facebook.

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

Google Maps has a wide array of APIs that let you embed the functionality of Google Maps.

Amazon CloudFront is a web service for content delivery. It integrates with other Amazon Web Services to give developers and businesses an easy way to distribute content to end users with low latency, high data transfer speeds, and no commitments.

The DOCTYPE is a required preamble for HTML5 websites.

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.

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.

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.

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

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

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

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

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

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

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

The OpenSearch description document format can be used to describe a search engine so that it can be used by search client applications.

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

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

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