Stefano here, CEO of CloudAcademy.com, thank you for your comment!

Yes, similar to the concept of Codecademy, but totally focused on cloud computing technologies. Actually in CloudAcademy.com you can test your skills on cloud computing platforms and technologies (AWS, Google etc.) and learn with courses and learning explanations.

Our system is designed around our CloudRank: if you try our quizzes (https://cloudacademy.com/cloud-computing-learning-quizzes/) you will see that we are testing you with a question and right after we show a small learning explanation. Every time you answer you increase or decrease your CloudRank.

We are transitioning to a freemium model, right now all the courses and questions are free and you'll always have a free account to get access to a good number of them.

Stefano