Windows 8 pinning functionality for websites.
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
JavaScript is a scripting language most often used for client-side web development.
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.
The HTTP Strict-Transport-Security (HSTS) header instructs the browser to only use https.
XHTML Friends Network is a simple way to represent human relationships using hyperlinks.
Public specification of a preferred URL for a page allows search engines to understand the original location for content.
The Speculation Rules API enhances performance for future navigations by targeting document URLs, making it ideal for multi-page applications (MPAs) rather than single-page applications (SPAs).
The Open Graph protocol enables any web page to become a rich object in a social graph, a open protocol supported by Facebook
Tags that webmasters can use to markup their pages in ways recognized by major search providers.
Twitter cards make it possible for you to attach media experiences to Tweets that link to your content.
This page contains tags that are specific to an HTML 5 implementation.
The DOCTYPE is a required preamble for HTML5 websites.
Requests made from a document, and for navigations away from that document are associated with a Referrer header. This policy determines in the browser should send a referrer or not.
Adapting images for high-resolution and low-resolution displays.
This page contains HTML5 style media tags. HTML5 is the proposed next standard for HTML 4.01, XHTML 1.0 and DOM Level 2 HTML.
The page shows content with an iframe; an embedded frame that loads another webpage.
Used to disable MIME-sniffing for a particular HTTP response.
A mechanism for developers to signal a relative priority for browsers to consider when fetching resources.