UltraDNS™ Launches First Service Level Agreement for Guaranteed DNS Performance

SAN MATEO, Calif., February 20, 2001

- UltraDNS Corp., a leading services provider of mission-critical Internet infrastructure solutions for e-businesses, ISPs and domain name registrars, today announced that it is now offering the industry's first service level agreement that addresses Domain Name System performance.

The service level agreement (SLA) is designed to meet the needs of customers who require mission-critical reliability in their DNS system by providing a 100 percent uptime performance guarantee on the UltraDNS Server Network. The SLA will go into effect today for all new UltraDNS customers.

"With the introduction of the industry's first DNS service level agreement, we are guaranteeing that our customers get the most reliable DNS service," said Steve Kalman, president and chief executive officer of UltraDNS. "This service level agreement ensures our commitment that we meet and exceed our customers' demanding performance expectations of our Managed DNS Service offering."

"Recently, the online world has seen the challenges of server, router and DNS issues firsthand, which has raised awareness of the importance of secure and reliable DNS service," said Ben Petro, chief marketing officer, UltraDNS. "UltraDNS is giving its customers peace of mind against these types of issues by guaranteeing a level of service that is carrier class."

"Enterprises and service providers need the same bulletproof guarantees of reliability and performance for their Internet operations that they have for their traditional network applications," said Michael Hoch, senior analyst of Aberdeen Group. "Yet, as vital as DNS is to reliable Web operations, many companies cannot ensure its performance. The SLA from UltraDNS provides firms with this guarantee, and raises the bar for any competing managed DNS service offering."

The UltraDNS SLA Agreement can be viewed at www.ultradns.com/support.

About Managed DNS Service

The Managed DNS Service is an outsourced infrastructure service that provides fully integrated primary and secondary Domain Name System (DNS) service through UltraDNS's advanced global DNS server network. Advanced fail-over mechanisms ensure that all DNS queries are reliably processed and that every customer makes his or her Web site connections on the first attempt.

By utilizing advanced routing technologies, DNS queries always are processed by the closest available UltraDNS server, enabling Web site visitors to experience the fastest Web site connections. To avoid the security holes and scalability limitations found in traditional DNS servers like BIND, UltraDNS built an advanced DNS server from the ground up that delivers extremely secure, robust and fast DNS transaction performance.

By leveraging an Oracle database for DNS information and advanced data replication technology, the service is highly scalable and architected to manage well over 200 million domains.

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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