Why DNS Breaks in Production but Works Locally
Who This Is For If you’ve ever dealt with DNS records — setting up domain verification, configuring SPF/DKIM for email, or just wondering why a DNS lookup returns different results on different machines — this post is for you. You don’t need to be a DNS expert. You just need to have been bitten by something that “works on my machine” but fails elsewhere. The Silent Failure You add a TXT record for domain verification. You test it on your laptop — works fine. You deploy to production — it silently fails. No errors, no timeouts, just… missing records. ...