UltraDNS to provide DNS infrastructure for Nominet UK
The .UK domain name registry

Third Largest Top Level Domain Expands International Reach with Greater Geographic Presence

BRISBANE, Calif., February 18, 2004 -- UltraDNS™ Corporation, the world's leading Managed DNS Service Provider, today announced that it has been selected to provide global DNS services for Nominet UK, the registry for .uk domain names. The migration to the UltraDNS Managed DNS ServiceT for high performance DNS resolution allows the world's third largest TLD to expand its network and increase the international reach of the .uk TLD.

Nominet selected UltraDNS to significantly improve infrastructure scalability and reliability, while gaining an additional layer of DNS security. UltraDNS provides a non-BIND managed DNS solution that gives the .uk registry the software code diversity it requires. This infrastructure allows Nominet to enhance its network resiliency and to expand its geographic presence without exposure to inherent flaws common in legacy DNS software.

"By adopting the UltraDNS Managed DNS Service™, we have been able to leverage a larger network footprint with no additional capital expenditure," said Lesley Cowley, managing director of Nominet UK. "Utilizing the scalable UltraDNS managed service enables us to outsource our DNS requirements while providing a more robust level of service to our user community."

"UltraDNS is committed to enhancing communications at the global level," said Ben Petro, president and CEO of UltraDNS. "As Nominet is responsible for an integral layer of the European Internet, utilizing the UltraDNS platform will ensure the greatest stability, performance, and security for .uk domains."

UltraDNS is the world's leading provider of DNS infrastructure currently supporting 23 TLD's and managing the DNS for over eight million domain names. Through the non-BIND Managed DNS Service™, UltraDNS guarantees 100 percent network uptime with an industry leading Service Level Agreement (SLA). The network infrastructure covered by the SLA allows for complete zone control and management through a variety of mechanisms, including a Graphical User Interface, Application Programming Interface, and zone transfer.

"As a directory infrastructure provider, UltraDNS has built a platform architecture that propagates data in real time, while delivering user requests to the closest topological server in our global network," said Rodney Joffe, chairman and CTO of UltraDNS. "As the demand for directory infrastructure continues to grow, the TLD community is moving to UltraDNS for immediate impact on the security and performance of their networks."

About Nominet UK
Nominet UK is the national registry for all Internet domain names ending in .uk. Its purpose is the careful and impartial management of this definitive database, providing stability, security, neutrality and accessibility for all users of .uk domain names. Nominet is a not-for-profit company limited by guarantee. It has members not shareholders, pays no dividends and its charges only cover its running costs. Anyone with an interest in the Internet may become a member. Nominet has over 2,800 members representing all areas of the Internet industry and is recognised as the .uk domain name registry by the Internet industry and the UK Government. It is not a governing or regulatory body, but provides a public service for the .uk namespace on behalf of the UK Internet community.

About UltraDNS
UltraDNS Corporation is the world's leading Managed DNS Service Provider, delivering superior security, reliability and performance to organizations that rely on DNS for their critical business processes, applications and services. With the growth in e-commerce and the emergence of advanced DNS-based communication and supply chain management services, organizations can no longer rely on traditional approaches to DNS. On October 20th, 2005 UltraDNS launched the DNS Shield™ in partnership with major Internet Service Providers (ISPs) including AOL, Earthlink, Time Warner and Yahoo to provide the highest level of reliability and security to over 100 million Internet users.

UltraDNS provides a range of global and local DNS solutions - both managed services and custom infrastructure - built on its unique Directory Services Platform and proprietary, patented technologies. Through its thousands of enterprise, service provider and TLD infrastructure customers, UltraDNS powers the resolution of over 15 million domains around the globe. UltraDNS has offices in California, Virginia, Arizona, Chicago and the UK. For more information please visit www.ultradns.com.

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