Google+ Sign-In button allows users to authenticate on websites using their Google+ account.
Use your Facebook account to sign into other sites and see what your friends are doing across the web.
Google+ platform websites integration using the Google+ platform tag.
AddThis, the new brand name for Clearspring Technologies, is the leader in socially connecting publishers, services and advertisers to audiences on the open web. Reaching more than 1.3 billion unique users monthly, AddThis’ social tools and analytics are used on more than 14 million unique domains to distribute and track digital...
Apps that link to your content can then use this metadata to deep-link into your app, take users to an app store to download the app, or take them directly to the web to view the content.
Open graph description entity tag
The Open Graph protocol enables any web page to become a rich object in a social graph, a open protocol supported by Facebook
Chrome for Android, since version 39 supports the "theme-color" meta tag to allow websites control the background color of the tab's UI header.
Meta Keywords are a specific type of meta tag that appear in the HTML code of a Web page and help tell search engines what the topic of the page is.
This page contains a meta robots tag which tells search engines and robots to index or not index the page.
The http-equiv attribute provides an HTTP header for the information/value of the content attribute. The http-equiv attribute can be used to simulate an HTTP response header.
The act of searching for an object. Related actions: FindAction: SearchAction generally leads to a FindAction, but not necessarily.
A WebSite is a set of related web pages and other items typically served from a single web domain and accessible via URLs.
A scheme.org entity that represents a person (alive, dead, undead, or fictional).