How Many Websites Use WordPress

WordPress is the most dominant CMS on the web with a total share of 30% and representing between 53% and 60% of all websites running a CMS.  To support WordPress there are also 55,216 plugins. Sources:   

Google analytics

How many websites use Google Analytics

Google Analytics is the largest Analytics program being used on the internet with, according to, 30m Live websites currently using Google analytics. But more surprising is that only half of all websites are using the Universal Tags and the other half are still using the older classic. Source: