Secondary DNS — A faster, more resilient way to serve your DNS records
May 25, 2020Dina Kozlov

Summary
Introduced a new, simplified onboarding experience for Secondary DNS via the Cloudflare Dashboard, reducing setup time and preventing common configuration errors. Detailed the technical mechanisms of zone transfers (AXFR/IXFR) and the role of SOA records and NOTIFY messages. Emphasized the security implications of zone transfers and the necessity of TSIGs for authentication and integrity. Extended DNS analytics capabilities to Secondary DNS customers, providing insights into traffic by record type, response code, and geography.
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