Very helpful to understand how DNS is setup

Great explanation by instructor.

This is the only course in Coursera on Domains, and I feel like this was a missed opportunity to add so much more information about it - registrars, DNS certificates, name servers, the difference of subdomains being created internally, but top domains being purchased. So I will give 4 stars for being unique a material and well composed, but for me it fell too flat and didn't use the opportunity.

The project introduces you to a few concepts, but doesn't explain well how the different systems interact with each other. Also, I miss explanation when the entry types of a DNS record are mentioned.

A start, but definitely you need to do some research yourself afterwards.