// Infrastructure Resilience

How Our BGP Anycast Network Works

Built from the ground up for zero-downtime authoritative DNS resolution, high packet throughput, and resilient edge routing.

⚡

Sub-Millisecond Edge Latency

Queries are answered locally by edge nodes connected directly to major regional Internet Exchange Points and Tier 1 transit fabrics. Eliminates intercontinental round-trip network hops.

🛡️

Distributed Volumetric DDoS Scrubbing

Attack traffic is naturally fragmented and diluted across all 23 global PoPs. In-line edge rate-limiting and SYN flood scrubbing neutralize malicious bursts without impacting legitimate resolver lookups.

🔄

Node-Level BGP Resilience

Each edge node operates its own BGP routing session. If a node encounters a failure or is taken down for maintenance, its BGP announcement drops to ensure internet traffic is not routed to an offline node.

// Routing Intelligence

Anycast vs. Traditional Unicast DNS

In traditional Unicast DNS, nameservers exist in fixed physical locations. A user in Tokyo querying a nameserver in Virginia suffers 180ms+ round-trip latency, and if that server experiences an outage or attack, all dependent domains fail.

With OnlyDNS BGP Anycast, ns1.onlydns.com exists everywhere simultaneously. The user in Tokyo reaches our Tokyo PoP in 2ms, the user in Frankfurt reaches our Frankfurt PoP in 1ms, and every DNS query is resolved at the edge.

✓ Native EDNS0 NSID & ECS Support

Full compliance with RFC 5001 (Name Server Identifier) and RFC 7871 (Client Subnet in DNS Queries) allows transparent diagnostics, geo-aware record routing, and deterministic troubleshooting.

Live Edge NSID Diagnostic EDNS0 NSID 
# Query local edge server ID and round-trip time
$ dig +nsid @ns1.onlydns.com example.com SOA

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1232
; NSID: 64 6e 73 2d 66 72 61 6e 6b 66 75 72 74 ("dns-frankfurt")

;; ANSWER SECTION:
example.com.  3600 IN SOA ns1.onlydns.com. hostmaster.onlydns.com. ...

;; Query time: 1 msec
;; SERVER: 100.64.0.57#53(ns1.onlydns.com) (UDP)
;; MSG SIZE  rcvd: 112
// Geographic Diversity

Worldwide Anycast Edge Deployment

Our 23 edge locations are strategically distributed across all major internet transit corridors.

North America

10 Nodes
Atlanta Chicago Dallas Los Angeles Mexico City Miami New Jersey Seattle Silicon Valley Toronto

South America

1 Nodes
São Paulo

Europe

5 Nodes
Frankfurt London Paris Stockholm Warsaw

Africa

1 Nodes
Johannesburg

Middle East

1 Nodes
Tel Aviv

Asia Pacific

5 Nodes
Mumbai Seoul Singapore Sydney Tokyo
Explore Interactive Network Map & Node Peering →
// Competitive Architecture

How OnlyDNS Anycast Compares

Feature OnlyDNS Anycast AWS Route 53 Legacy Registrar DNS
Global Routing Architecture 23 BGP Anycast PoPs Anycast across AWS regions Unicast (2-4 servers)
RFC 2136 Edge Propagation ✓ 0.2–5s global sync ~30-60s via REST API ✗ Minutes to hours
DDoS Scrubbing Capacity Multi-Tbps Edge Absorptive AWS Shield Standard Minimal / Easily overwhelmed
Free Tier Inclusions 250,000 queries/mo free $0.50/zone/mo + query fees Included with domain renewal
// Worldwide Resilience

Accelerate Your Global DNS with OnlyDNS Anycast

Migrate in under 5 minutes with zero downtime. Get instant access to all 23 edge PoPs on our Free Tier.

Get Started Free Read Migration Guide →

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