This article explains whether you can add a domain and configure DNS records in UltraDNS before updating name server delegation.
It applies when preparing for a DNS migration or service transition.
When to Use This Article
- You are planning to migrate DNS to UltraDNS.
- You want to configure records before updating name servers at the registrar.
- You want to minimize downtime during DNS cutover.
Can You Preconfigure a Zone Before Switching?
Yes, you can create a domain and configure all required DNS records in UltraDNS before updating name server delegation at your registrar.
The zone can be fully prepared and validated within the UltraDNS portal without affecting live DNS resolution.
DNS queries will continue to resolve using your current DNS provider until you update name server delegation at the registrar.
Recommended Migration Approach
- Create the new primary domain in UltraDNS.
- Recreate all required DNS records in the new zone.
- Verify that record values match your existing DNS configuration.
- Lower TTL values on your current DNS provider if needed before migration.
- Update name server delegation at your registrar to point to UltraDNS name servers.
- Monitor DNS resolution after propagation completes.
Verification
After updating name server delegation, use tools such as dig or nslookup to confirm that queries are resolving from UltraDNS authoritative name servers.
Ensure that returned records match the intended configuration.
Important Notes
- DNS changes will not take effect until registrar delegation is updated.
- Propagation timing depends on previous TTL values and registrar update timing.
- Plan migrations during low-traffic periods when possible.