To answer your question: some parts of our SaaS (e.g. data gathering/processing) are on both AWS and Azure, but the customer-facing portal web app is 100% on Azure (in two regions North East and North Central), so we couldn't just swap the DNS.
We're changing that now, will need to replicate across different cloud providers, too. We're changing a lot because of last night's outage.
We're changing that now, will need to replicate across different cloud providers, too. We're changing a lot because of last night's outage.