CF Analytics is a Chrome extension developed by Apoorva Raj Bhadani that enhances the Codeforces profile webpage by providing detailed statistics on the user's problem-solving abilities. This free extension offers valuable insights into the user's performance and helps them track their progress over time.

One of the main features of CF Analytics is the 'Problem Rating' graph, which presents a bar chart showcasing the number of problems solved for each problem rating. This visual representation allows users to easily identify their strengths and weaknesses in different problem difficulty levels.

Another useful feature is the 'Tags Solved' graph, presented as a doughnut chart. It displays the tags of problems solved by the user and provides a count for each tag. This feature helps users identify the types of problems they excel at and the areas they need to focus on.

CF Analytics also provides a 'Unsolved Problems' section, which shows the count of all attempted problems with an incorrect verdict. This section lists the unsolved problems, allowing users to revisit and improve their understanding of these concepts.

It's worth noting that CF Analytics only communicates with the Codeforces API and runs entirely on the browser, ensuring the user's data privacy and security.

With CF Analytics, Codeforces users can gain valuable insights into their problem-solving abilities and make informed decisions to improve their performance on the platform.