Knight Ridder Digital Turns to UltraDNS for Bulletproof DNS Infrastructure

Leading Internet Publisher Enhances Online Reliability and Performance

BRISBANE, Calif., December 6, 2005-- UltraDNS™ Corporation, the leading Managed DNS Service Provider, today announced that Knight Ridder Digital, one of the nation's leading providers of local online news and information, has selected its Managed DNS Service to deliver enhanced online functionality and network reliability. By utilizing UltraDNS' managed services, Knight Ridder Digital improves online performance for the delivery of real-time news and information backed by UltraDNS' industry-leading service level agreement (SLA).

Knight Ridder Digital manages Knight Ridder's Internet operations covering more than 30 company-owned newspaper sites and directs online partnerships with other media companies. Additionally, it - operates Real Cities, a national network of city and regional Web sites in more than 110 markets, including 23 of the top 30 U.S. media markets.

"As one of the nation's largest online publishers, millions of readers rely on our ability to disseminate timely news and information all day, everyday. After performing considerable diligence for this essential network infrastructure, we chose UltraDNS as our DNS provider to achieve greater network scalability and accommodate our continued growth," said Dean Denhart, CTO of Knight Ridder Digital. "UltraDNS' managed services provide superior flexibility in optimizing our network, and enable the fastest propagation speed for our DNS changes, which are absolutely vital for our business."

Knight Ridder Digital leverages UltraDNS' fully fault-tolerant, global directory infrastructure to provide critical layers of network security, reliability and management. Utilizing the UltraDNS advanced management portal, Knight Ridder Digital can seamlessly modify DNS records and have the changes propagated globally in near real time. As an additional value, Knight Ridder Digital can view all DNS changes within the management portal's comprehensive audit log.

"Advertisers, newspapers and publishers require a complete DNS solution that delivers unmatched scalability and performance for their critical Internet business operations," said Ben Petro, president and CEO, UltraDNS. "We are pleased that UltraDNS services support Knight-Ridder Digital's Internet growth strategy for the delivery of news and information to their millions of daily readers."

About Knight-Ridder Digital
A leader in local news, information and marketplace services on the Web, Knight Ridder Digital develops and manages the Internet properties of Knight Ridder (NYSE: KRI), the nation's second-largest newspaper publisher. Knight Ridder Digital is the founder and operator of Real Cities, the largest national advertising network of local Web sites. For more on Knight Ridder Digital visit (www.kri.com/digital) or for more on Real Cities visit (www.realcities.com).

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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