EPA.GOV

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

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

CrazyEgg provides visualization of visits to your website.

Customer satisfaction products.

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.

Extends jQuery to provide dimension-centric methods for getting widths, heights, offsets and more.

A slideshow plugin for JQuery that supports many different types of transition effects.

Amazon Simple Storage provides unlimited storage to developers and online businesses - saving costs and increase storage reliability.

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 website uses the FeedBurner widget to display how many readers of its RSS feeds they have.

The website contains dublin core meta data extensions.

Atom Syndication Format is an XML language used for web feeds very similar to RSS.

FeedBurner is the leading provider of media distribution and audience engagement services for blogs and RSS feeds.

The DOCTYPE is a required preamble for HTML5 websites.

Meta tag containing keywords related to the page.

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

The website implements links to RDF documents. The Resource Description Framework (RDF) integrates a variety of applications from library catalogs and world-wide directories to syndication and aggregation of news, software, and content to personal collections of music, photos, and events using XML as an interchange syntax.

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.

The map tag is used to define a client-side image-map. An image-map is an image with clickable areas.

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.

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