Your DNS provider is the single point of failure between users and everything you've built. Here's how to choose one that won't let you down.
Your DNS resolver sees every domain you visit. Choosing between Google, Cloudflare, Quad9, OpenDNS, and NextDNS isn't just about speed—it's about who you trust with a complete record of your digital life.
DNS is the one service that cannot fail. Your choice between managed and self-hosted reveals what kind of organization you are—and most organizations should stop pretending they're the kind that builds their own.
DNS must cache to be fast, but caches must expire for failover to work. Understanding this tension—and the clever workarounds engineers have built—is key to designing systems that actually stay up.
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