Sara registered her domain, tried to connect it by hand, and quit. The domain sat pointed at nothing until it expired. Her second attempt, on a platform built for one-click domain setup, stuck in about 15 minutes. The only thing that changed was whose job the DNS step was.

The most expensive drop-off in SaaS onboarding hides in plain sight: the moment a customer connects their own domain. Roughly half abandon there, after they have already paid. This post names the problem precisely and shows why motivated customers walk away.

When customers stall at the DNS step, the reflex is to rewrite the setup guide. But documentation for custom domains is structurally doomed: it assumes users understand DNS, it needs a fresh variant per registrar, and it breaks the moment either side changes anything.