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).
oEmbed is a format for allowing an embedded representation of a URL on third party sites.
The Open Graph protocol enables any web page to become a rich object in a social graph, a open protocol supported by Facebook
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 picture element provides images for different devices and is part of the HTML 5.1 specification.
Adapting images for high-resolution and low-resolution displays.
The page shows content with an iframe; an embedded frame that loads another webpage.
A mechanism for developers to signal a relative priority for browsers to consider when fetching resources.
This page contains a meta robots tag which tells search engines and robots to index or not index the page.
The description attribute provides a concise explanation of the page content.
JSON-LD, or JavaScript Object Notation for Linked Data, is a method of transporting Linked Data using JSON.
JavaScript is a scripting language most often used for client-side web development.
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