B Root DNS Server

The Domain Name System (DNS) acts as the global address book of the internet, translating human-readable domain names into machine-readable IP addresses that route traffic across interconnected networks. b.root-servers.net is one of the 13 officially designated authoritative root DNS servers that underpin the entire global DNS system, holding the master root zone file that lists all authoritative name servers for every top-level domain (TLD) on the internet. Unlike public-facing websites, root servers like b.root-servers.net operate exclusively as critical internet infrastructure, handling billions of DNS queries every day from recursive DNS resolvers around the world. Root servers use anycast network architecture, and b.root-servers.net maintains dozens of points of presence across the globe to ensure low-latency query responses and high redundancy against network outages or attacks. This domain ranks #104 globally, placing it among the top 0.01% of most heavily used internet domains worldwide, reflecting its central role in keeping the internet operational for billions of daily users. As a core infrastructure domain, it does not serve public web content, and instead functions only to handle DNS routing requests for the global DNS ecosystem. Operation of root name servers is coordinated through a global multi-stakeholder internet governance model, with each root server operated by an independent organization; b.root-servers.net is managed by the University of Southern California’s Information Sciences Institute. Due to its critical role, the server is built to withstand large-scale distributed denial of service attacks and other network disruptions, ensuring continuous service for the global internet.