This article has been updated to include recent industry trends and information about primary implementations. \r\n Akamai  Edge DNS  service delivers edge-based, authoritative domain services for thousands of organizations. These organizations trust Edge DNS to deliver reliable and performant responses, reflected by a 100% uptime service-level agreement. Along with unmatched reliability, Edge DNS boasts an impressive geographically diverse footprint and an intelligently deployed  anycast  network, ensuring client queries are consistently routed to a nearby nameserver in an efficient manner. From an operations perspective, Akamai offers administrators the flexibility to leverage Edge DNS as either a secondary or primary provider, as well as the option of implementing DNSSEC to protect against DNS forgery and manipulation. \r\n Secondary DNS \r\n In secondary mode, zone administrators establish zone transfers from their primary nameservers to Akamai.…