Operations | Monitoring | ITSM | DevOps | Cloud

You've probably had that moment. A minor outage hits production, and after a few hours of head-scratching, someone traces it back to a domain issue. Expired records, a DNS change that didn't propagate, a forgotten subdomain pointing to nothing. It always seems small-until it's not. And in most Ops teams, domains are still treated like static assets when they're anything but.

AWS outages grab headlines because they affect millions, but the root cause often comes down to something invisible: DNS failures and cascading service dependencies. The complexity of modern cloud systems, combined with the advanced technology powering platforms like AWS, makes these outages particularly challenging to diagnose and resolve. The recent AWS outage proves one thing: you can't prevent every DNS issue, but you can create resilient architectures and prevent a single failure from taking down your entire service if you test for it.