[Mojah]

I'm currently working on a tool [1] that can help with checking if all your different providers are 'in sync' and responding with the same answers. Setups like these are only to grow more common as people realise a single DNS provider is a SPOF of its own.

Very good analysis of SO and a smart move to roll this out _before_ a new DNS outage!

https://dnsspy.io

[SteveNuts]

I've thought about doing something like this, the biggest issue I found is feature parity between DNS providers.

If you could have a unified API that would create the records on multiple providers that would be money, it's just that you'd lose out on some things like Route 53 health checking, etc.