BuzzSumo

BuzzSumo (also acquired by the massive Brandwatch/Cision empire) is a fiercely pragmatic, highly tactical titan that mathematically attacked the "Content Virality" market. It doesn't monitor general brand health; it engineered an absolute masterclass in tracking viral content propagation. It is the absolute weapon of choice for massive content marketing teams and SEO agencies who mathematically demand to type in a keyword and instantly see the exact mathematical top 10 most shared articles on the entire internet regarding that topic.