Tells mobile browsers that the content is already framed for mobile browsing.
JavaScript is a scripting language most often used for client-side web development.
JSON-LD, or JavaScript Object Notation for Linked Data, is a method of transporting Linked Data using JSON.
The description attribute provides a concise explanation of the page content.
Meta tag containing keywords related to the page.
This page contains a meta robots tag which tells search engines and robots to index or not index the page.
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
Contains language specific links.
Public specification of a preferred URL for a page allows search engines to understand the original location for content.
The Open Graph protocol enables any web page to become a rich object in a social graph, a open protocol supported by Facebook
[url] 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.
Twitter cards make it possible for you to attach media experiences to Tweets that link to your content.
The DOCTYPE is a required preamble for HTML5 websites.
This page contains tags that are specific to an HTML 5 implementation.
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.
The page shows content with an iframe; an embedded frame that loads another webpage.
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.