Bootstrap is a toolkit from Twitter designed to kickstart development of webapps and sites.
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.
The DOCTYPE is a required preamble for HTML5 websites.
Cache Control setting on the page to provide caching performance gains.
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.
SRI is a W3C specification that allows web developers to ensure that resources hosted on third-party servers have not been tampered with.
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 defer attribute gives a hint to the browser that the script does not create any content so the browser can optionally defer interpreting the script. This can improve performance by delaying execution of scripts until after the body content is parsed and rendered.
JavaScript is a scripting language most often used for client-side web development.
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