UltraDNS Announces Launch of Ultra Recursive Service

Hosted Recursive-Only Service Industry First for Enhanced DNS Performance

SAN MATEO, Calif. November 12, 2001 -- UltraDNS™ Corporation today announced the availability of Ultra Recursive ServiceTM, an unprecedented solution exclusively for hosted recursive DNS (Domain Name System) service. The new service offers significant performance advantages for Internet Service Providers (ISPs) and large enterprises seeking to increase the speed and reliability of their recursive DNS service without having to acquire, deploy, and manage expensive technologies in-house.

As a third-party hosted service, Ultra Recursive DNS delivers unparalleled speed and reliability because it runs on UltraDNS's proprietary directory infrastructure platform, which can deliver users to their queried destinations more quickly than local recursive servers. Furthermore, Ultra Recursive Service provides optimal performance because it is unencumbered by the weaknesses of BIND (Berkeley Internet Name Domain), the common Internet directory technology used by the majority of Web sites. The resulting performance benefits include the elimination of dropped connections, more responsive site performance and exceptional user experience.

"Ultra Recursive Service signifies another raise of the bar for providing hosted DNS services to service providers and enterprises looking to cut costs and improve performance by outsourcing their DNS solutions," said Ray Stephens vice president marketing of UltraDNS. "Until now, ISPs and enterprises had no alternative for eliminating the inherent risk of recursive server failure. Ultra Recursive Service runs on our own DNS infrastructure, so we can provide a service that no one else has which not only finds Web sites faster but also ensures they will always be accesible."

Standard best practices call for the recursive DNS server and authoritative DNS server to be separate entities on the network, to separate functionality and reduce the risk of total failure. Since most in-house recursive DNS solutions run on BIND, they require specific configurations to disable them from serving as both the local recursive server and the authoritative DNS server. Consequently, most organizations run recursive and authoritative DNS on the same server, and BIND is unable to meet the demanding reliability, performance, scalability and manageability requirements of e-businesses and their service providers.

Ultra Recursive Service eliminates this dilemma with a robust, hosted recursive DNS solution that acts as a local recursive server, offering performance benefits throughout large enterprises as well as to end-user customers of ISPs. The Ultra Recursive Service's user interface (UI) allows for complete account control and increased manageability. Ultra Recursive Service saves time, cuts costs, and increases productivity.

For more information about Ultra Recursive Service or UltraDNS's other managed and hosted DNS services please visit www.neustarultraservices.biz.

About UltraDNS
Based in San Mateo, Calif., UltraDNS Corporation is the leading Directory Infrastructure Services Provider (DISP), delivering solutions that enhance the reliability and performance of the world's largest directories and the mission-critical applications that access them. UltraDNS offers highly scalable solutions - both as a managed services provider and as a developer of custom infrastructure solutions - built on its unique Directory Services Platform and proprietary, patented technologies. The company operates its own global, fail-safe server network, which supports the UltraDNS Managed DNS Service, the industry's first 100 percent reliable Domain Name System (DNS) name/IP address resolution service, backed by a full service level (SLA) guarantee. UltraDNS infrastructure services, such as Managed DNS, address the growing need for quick, reliable response to directory queries in today's converging Internet/telecom environment. By connecting a user's information request to the proper directory and assuring a quick, accurate response, UltraDNS plays a key enabling role in delivering content, information and data to users when, where and on whatever device they choose. The company was founded in 1999 and is funded by Reuters Group PLC, Vantage Point Venture Partners, New Enterprise Associates, and Comdisco. Customers include Oracle, MSN Hotmail, Corio, Handspring, BlueLight (Kmart), and Petco. For more information, visit www.neustarultraservices.biz.