CCBot is a bot for website Common Crawl. Its websites describes its own database as follows: The Common Crawl corpus contains petabytes of data collected over the last 7 years. It contains raw web page data, extracted metadata and text extractions. These datasets can be downloaded for free! As to why CCBot is employed, the website offers the following information: Common Crawl is a non-profit organization dedicated to providing a copy of the internet to internet researchers, companies and individuals at no cost for the purpose of research and analysis. A visit by CCBot means that your domain will be included in the Common Crawl database.
The Internet of Bots has evaluated CCBot against 50 different checkpoints, of which 35 have been confirmed as being positive. These checkpoints evaluate the transparency and occurrence of a bot and don´t necessarily say something about its quality. The BotRank is calculated as [35*2=] 70%. The details of the bot and the BotRank can be seen below. For more information on how the BotRank is made, you can visit the page Botrank.