A9 manages product search and advertising technologies that are scalable, highly available, and cross-platform for Amazon and other clients.
A simple library that provides standard Unicode emoji support across all platforms.
A family of standard web feed formats used to publish frequently updated information like blog entries, news headlines, audio and video.
Open graph description entity tag
A canonical link element is an HTML element that helps webmasters prevent duplicate content issues by specifying the "canonical", or "preferred".