We are excited to announce an enhancement to NS1 Connect that boosts support for multi-vendor DNS configuration, especially in environments where vendors like Cloudflare also operate as an authoritative provider. 

In setups where Cloudflare are a primary provider, NOTIFY messages are sent from a predefined set of IP ranges, while Cloudflare listens to Zone transfer requests (AXFR/IXFR) and SOA queries from a different IP address. Previously, we would receive a NOTIFY from one IP address, then send replies to all associated IP addresses, eventually reaching the correct Transfer IP.  

With this release, we have streamlined the process for enhanced efficiency. Our system now intelligently routes zone transfer requests directly to the correct Transfer IP, this speeds up the zone synchronization process and eliminates the need to fan out across multiple IP addresses. This will result in: 

§     Faster resolution of zone transfer responses  

§     Reduced network noise 

§     Improved capability with vendors using separated IP ranges, such as Cloudflare. 

This enhancement is now available – log in to the portal to enable faster, smarter syncing between your DNS systems.

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