STORE.APPLE.COM

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

The DOCTYPE is a required preamble for HTML5 websites.

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

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.

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

This page contains a meta robots tag which tells search engines and robots to index or not index the page.

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

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 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.

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

A way to make Web content and Web applications more accessible to people with disabilities. It especially helps with dynamic content and advanced user interface controls developed with Ajax, HTML, JavaScript, and related technologies.

This page contains tags that are specific to an HTML 5 implementation.

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.

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