BuzzSumo is best described as a tool to identify what content is popular on websites.

• A. Tracks competitor PR activity
• B. Measures email open rates
• C. Shows what content is popular on websites
• D. Analyzes paid media performance

Answer: (C)

BuzzSumo is a content analytics tool that helps you see what content resonates with audiences by measuring how often it’s shared and discussed across the web. By aggregating engagement signals, such as social shares and sometimes backlinks, it surfaces top-performing articles, videos, and topics, showing what content is popular on websites. This focus on popularity through engagement makes it the best fit for identifying popular content. It isn’t built for tracking competitor PR activity, measuring email open rates, or analyzing paid media performance, which are functions of PR monitoring, email marketing platforms, and paid advertising analytics, respectively.