Does UltraDNS support TSIG? March 16, 2026 16:07 Updated Yes, UltraDNS supports TSIG for both primary and secondary domains. Related to Domain Management Zone Management Zone Transfer Management Related articles How to Create a Secondary Domain in UltraDNS Using an UltraDNS-Provided TSIG Key CAA Records What hash methods/strengths does UltraDNS use for TSIG? How to Create a Secondary Domain in UltraDNS Without a TSIG Key