DNS is a protocol as old as the Internet. Yet we only notice it when it’s not working, or when some company acquires a cool IP to run their own resolvers. But lately, there's a new, cool kid in town: DNS-over-HTTP, or DoH.
In this talk, I want to answer the question you all had when you read it the first time: Why? Why would anyone really want to do this? After we explore the motivation behind this, we’ll look a bit into the implementation details and discuss the pros and cons.