1. Have you published your zone? Once the zone successfully created in the portal, the zone must be published to the Dyn nameservers before we can respond to DNS queries. Click here for more information on publishing your zone.
  2. Have you properly delegated your zone to the Dyn nameservers? Delegation is how the world finds the nameservers for your zone. Be sure that you have listed the correct Dyn nameservers with the correct IP addresses. Click here for more information on zone delegation.
  3. Have you waited for the cached zone data on your recursive DNS servers to expire? It can take several hours for some recursive DNS servers to clear cached data. Extremely long TTL values can lead to even longer delays.