Who runs it
.dev is administered by Google Registry, and its expiry process is another preloaded extension where certificates cannot be allowed to lapse.
What happens after expiry
Standard gTLD sequence.
The grace period
Around 30 days.
Recovery after that
Usual gTLD redemption fees.
Worth knowing about .dev
Like .app, .dev is HSTS preloaded, so an expired certificate takes the site down completely rather than showing a warning. Worth knowing before choosing it for anything customer-facing.
What is true of every extension
- The domain stops resolving the moment it expires. Website and email both stop at once, because both depend on the same records.
- Your registrar panel may still show the domain as active while the rest of the internet already treats it as gone.
- Every stage after expiry costs more than renewing did, and the last stage cannot be undone at any price.
Registry policies change. The shape of the process is stable, but confirm exact windows with your registrar before relying on a number.