Field notes

The DNS Previewer blog

Field notes on DNS migrations, WordPress hosting, and the parts of running websites that break at 3am — written from the trenches by people who've been on those calls.

Migration
I crashed a client's WordPress site for 14 hours during a DNS migration. Here's the exact pre-flight checklist I now use.
After a botched Black Friday migration cost a client $14k in downtime, I built an 18-step pre-flight checklist that catches the failure modes WP migration tutorials skip.
Romail Shah·June 2, 2026·14 min read

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I crashed a client's WordPress site for 14 hours during a DNS migration. Here's the exact pre-flight checklist I now use.

The free DNS preview tool behind this blog