Unified Advertising and Analytics solutions from Google
Google Analytics is a service offered by Google that generates detailed statistics about a website's traffic and traffic sources and measures conversions and sales. Google Analytics can track visitors from all referrers, including search engines and social networks, direct visits and referring sites. It also displays advertisin...
Google Tag Manager makes it easy for marketers to add and update website tags including analytics, remarketing, and more.
Sites who has this tag are verfied by google to use WebMaster tools