I encourage lot of people to go for this site and learn, trusting upon the reliability. I found them complaining regularly about the lack of reliability of the website, mostly slow or down, as from past 2 days not able to login to https://courses.cognitiveclass.ai/login. It affects the trust and user engagement. On top of that even after a day of not working,we have not found a single notification saying what is happening. Please build a monitoring system and assign a responsible person to make sure the website functions professionally, even in down time.