DNS is a complex system. What you have read so far is just the tip of… the tip of the iceberg. I hope it is enough, however, to help you decide if any of these “DNS hacks” could be useful for you, and show you the road to implement them:
Just a few notes on the purpose, structure of DNS, with some really basic configuration procedures and tricks for DNS on Linux
Static websites are great. Hugo is a really great static website generator. Except for a few things (some not even Hugo’s fault!).
Did you ever cancel by mistake a post on some website, only to find out that you had no other copy of it anywhere, not even in Google’s cache? I did. Here is how I recovered it.