DNS Anycast BGP Latency Benchmark
Measure real-time client-to-edge round-trip latency across global Anycast DNS constellations. Benchmark Cloudflare, Google Public DNS, Quad9, and OpenDNS routing performance.
Live Edge Latency Probes
| Provider | BGP ASN | Anycast Endpoint | Min Latency | Median Latency | Relative Speed |
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Frequently Asked Questions
How does BGP Anycast routing work for global DNS networks?
Anycast announces the identical IP address from hundreds of data centers worldwide via Border Gateway Protocol (BGP). Internet routers automatically steer queries along the shortest AS path to the nearest geographical point-of-presence (PoP), minimizing latency and absorbing massive volumetric DDoS attacks.
Why does DNS round-trip latency vary across Anycast providers?
Latency differences depend on peering agreements with local ISPs, the density of physical edge nodes in your region, and whether the provider peers at local Internet Exchange Points (IXPs) rather than backhauling transit over transatlantic or transcontinental links.
What is the performance benefit of low DNS lookup latency?
Because web browsers must resolve domain names before establishing TCP handshakes and TLS encryption tunnels, DNS resolution directly impacts First Contentful Paint (FCP) and Time to First Byte (TTFB). Sub-20ms DNS resolution delivers measurably faster web navigation.
How does Anycast defend against DNS DDoS attacks?
During a volumetric attack, the traffic load is fragmented across hundreds of global Anycast edge sites rather than overwhelming a single centralized datacenter. Each local node absorbs a small fraction of the attack, maintaining availability for the rest of the world.