Reverse Nameserver & Anycast Cloud Footprint
Analyze authoritative nameserver delegation patterns and underlying cloud network topology. Identify who controls a domain name's DNS traffic, inspect BGP Autonomous System Numbers (ASNs), and audit anycast edge PoP redundancy.
Powers over 25 million web properties. Offers 1-click DNSSEC signing, multi-signer DNSSEC, and global sub-10ms query resolution.
| Provider Name | Nameserver Pattern | BGP ASN | Edge Node Density | Classification | Architecture & Security Notes |
|---|---|---|---|---|---|
| Cloudflare Anycast DNS | cloudflare.com | AS13335 | 330+ Global Cities | Global Tier 1 | Powers over 25 million web properties. Offers 1-click DNSSEC signing, multi-signer DNSSEC, and global sub-10ms query resolution. |
| Amazon Web Services (Route 53) | awsdns | AS16509 | Global Edge Network | Major Cloud Hyper-scaler | 100% availability SLA with 4-part TLD striped anycast delegations (one nameserver in .org, .com, .net, and .co.uk). |
| Google Cloud DNS | googledomains.com | AS15169 | Global Google Edge | Major Cloud Hyper-scaler | 100% availability SLA backed by Googles worldwide private fiber backbone and anycast Points of Presence (PoPs). |
| GoDaddy DomainControl | domaincontrol.com | AS26496 | Multi-region Anycast | Registrar Default | Default authoritative nameserver cluster assigned to millions of retail domain registrations managed through GoDaddy. |
| Namecheap BasicDNS / PremiumDNS | registrar-servers.com | AS22612 | Global Anycast Clusters | Registrar Default | Authoritative nameserver infrastructure for Namecheap consumer and retail registrar domains. |
| Microsoft Azure DNS | azure-dns | AS8075 | 60+ Azure Regions | Major Cloud Hyper-scaler | Enterprise authoritative DNS service integrated with Microsoft Entra ID and Azure Resource Manager. |
| IBM NS1 (Next Generation DNS) | nsone.net | AS19859 | Dedicated Anycast Edge | Enterprise Specialized | Pioneer of the Pulsar real-time telemetry engine and advanced programmatic routing filter chains. |
| Akamai Edge DNS | akadns.net | AS20940 | 135+ Countries | Enterprise Specialized | Mission-critical authoritative DNS designed to withstand massive terabit-scale distributed denial-of-service (DDoS) attacks. |
| Hurricane Electric Free DNS | he.net | AS6939 | Global Backbone Anycast | Enterprise Specialized | Pioneering global IPv6 transit network providing robust free authoritative secondary and dynamic DNS services. |
AWS 4-TLD Striped Delegations
When creating a hosted zone in Amazon Route 53, AWS intentionally assigns nameservers across four distinct top-level domains (one ending in .com, .net, .org, and .co.uk). This architectural striping ensures that even if an entire root registry experiences an outage, your domain remains resolvable via the remaining three TLDs.
BGP Anycast Routing
Anycast allows hundreds of geographically distributed physical servers to announce the identical IPv4 and IPv6 addresses via Border Gateway Protocol (BGP). DNS queries are automatically routed via the shortest network path (lowest AS-path hop count), delivering lightning-fast query latency while naturally absorbing terabit-scale DDoS volumetric attacks.
Multi-Signer DNSSEC (RFC 8901)
Modern enterprise multi-cloud setups utilize RFC 8901 models to allow two distinct DNS providers (such as Cloudflare and Route 53) to simultaneously host and cryptographically sign the same zone. By synchronizing Zone-Signing Keys (ZSK), both providers can serve valid DNSSEC responses concurrently without signature breakage.