Content Security Policy is best used as defense-in-depth, to reduce the harm caused by content injection attacks.
Open graph description entity tag
Open graph title entity tag
The act of searching for an object. Related actions: FindAction: SearchAction generally leads to a FindAction, but not necessarily.
The average rating based on multiple ratings or reviews.
Sites who has this tag are verfied by google to use WebMaster tools
A canonical link element is an HTML element that helps webmasters prevent duplicate content issues by specifying the "canonical", or "preferred".