What is Virtual DNS and how does it work?

What is Virtual DNS?

Virtual DNS (Virtual DNS) is a DNS proxy that increases performance, security and global distribution for DNS providers, registrars, and enterprises that maintain their own DNS infrastructure.

By proxying requests to the origin nameservers, Virtual DNS provides DDoS mitigation, high availability, reliability, global distribution and caching, while still giving an organization total control over their DNS.

How does Virtual DNS work?

Virtual DNS takes the same approach to proxying DNS requests and protecting DNS servers as CloudFlare takes for proxying web requests and protecting web servers. It is used by DNS hosting providers and registrars, as well as enterprises that choose to run their own DNS infrastructure but want to deploy an additional layer of security. Virtual DNS protects upstream nameservers from DDoS attack and reduces load on the upstream nameservers by caching DNS responses in all of CloudFlare’s 75+ global points of presence.

Virtual DNS leverages Cloudflare’s global DNS and proxying infrastructure to provide performance and security services for a DNS provider's nameservers. DNS queries destined for the provider's nameservers will first be sent to the nearest Cloudflare point-of-presence to the website visitor. If the proper DNS response is available in Cloudflare's cache, Cloudflare will return the response to the visitor. If the DNS response is not available in cache, Cloudflare will query the provider's nameservers in the background to fetch the DNS response and send it back to the visitor. Simultaneously, that response will be temporarily cached on Cloudflare to be automatically returned when the next query for that record comes along. Malicious requests to the nameservers can be identified and blocked at Cloudflare before those requests ever make it to the provider's nameservers.

Who can use Virtual DNS?

Virtual DNS is useful for DNS providers, hosts, registrars, and enterprises who run their own DNS infrastructure.

How do I sign up for Virtual DNS?

Virtual DNS is an Enterprise product that is available for both existing Cloudflare customers and new customers interested in Virtual DNS.

Contact our sales team: +1 888 99 FLARE or let us know you are interested here: cloudflare.com/enterprise-service-request.


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