If you register a domain with Cloudflare or Route 53, and that service goes down, do your records stay active in the DNS servers? What if the DNS servers go down, I know a lot of people use 8.8.8.8, so if Google’s server goes down, then DNS fails?
What are the potential point of failures for having your own domain?
I wish I could find it, but there was an interesting conference talk from AWS about route53 and how it was built with resilience in mind. If it goes down AWS has a problem. So they made sure that this is a very unlikely scenario.