PAYPAL.IT

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

Mediaplex has focused on developing innovative technology solutions that help agencies meet their specific business requirements and consistently exceed campaign and revenue goals.

Omniture SiteCatalyst® provides your website with actionable, real-time intelligence regarding online strategies and marketing initiatives.

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

The website claims HTML 4.01 Transitional DTD, which includes presentation attributes and elements that W3C expects to phase out as support for style sheets matures.

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.

Meta tag containing keywords related to the page.

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

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

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.

This page contains an icon for iPhone, iPad and iTouch devices.

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.

The X-Frame-Options HTTP response header can be used to indicate whether or not a browser should be allowed to render a page in a frame or iframe. Sites can use this to avoid clickjacking attacks, by ensuring that their content is not embedded into other sites.

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