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--- title: Azure Private DNS zone resiliency description: In this article, learn about resiliency in Azure Private DNS zones. services: dns author: asudbring ms.service: azure-dns ms.topic: concept-article ms.date: 06/09/2023 ms.author: allensu ms.custom: sfi-image-nochange # Customer intent: "As a network administrator, I want to understand the resiliency features of Private DNS zones, so that I can ensure continuous name resolution during regional outages and maintain service availability across my network infrastructure." --- # Azure Private DNS zone resiliency DNS private zones are resilient to regional outages because zone data is globally available. Resource records in a private zone are automatically replicated across regions. ## Resiliency example The following figure illustrates the availability of private zone data across multiple regions.  In this example: - The private zone azure.contoso.com is linked to VNets in three different regions. Autoregistration is enabled in two regions. - A temporary outage occurs in region A. - Regions B and C are still able to successfully query DNS names in the private zone, including names that are autoregistered from region A (ex: VM1). - Service interruption in region A doesn't affect name resolution in the other regions. The example shown here doesn't illustrate a disaster recovery scenario, however the global nature of private zones also makes it possible to recreate VM1 in another VNet and assume its workload. > [!NOTE] > Azure Private DNS is a zone-redundant service. For more information, see [Azure services with availability zone support](/azure/reliability/availability-zones-service-support). ## Next steps - To learn more about Private DNS zones, see [Using Azure DNS for private domains](private-dns-overview.md). - Learn how to [create a Private DNS zone](./private-dns-getstarted-powershell.md) in Azure DNS. - Learn about DNS zones and records by visiting: [DNS zones and records overview](dns-zones-records.md). - Learn about some of the other key [networking capabilities](../networking/fundamentals/networking-overview.md) of Azure.