Akamai and CacheFlow Strengthen Strategic Alliance.

Business/Technology Editors

CAMBRIDGE, Mass. and SUNNYVALE, Calif.--(BUSINESS WIRE)--June 26, 2000

Akamai Technologies, Inc. (NASDAQ:AKAM), a global provider of high-performance services for the delivery of Internet content, streaming media and applications, and CacheFlow(R) Inc. (NASDAQ:CFLO), a leading provider of Internet acceleration and content management solutions, today announced that Akamai will sell CacheFlow Internet caching appliances with its Internet content delivery service solutions. The combined solution strengthens content-acceleration infrastructures, helping E-commerce and content sites better serve online customers through enhanced performance, scalability and reliability.

"We entered into a broad strategic alliance with CacheFlow about three months ago, and we've been very pleased with the results of the relationship," said George Conrades, chairman and chief executive officer of Akamai, a supporting member of CacheFlow's Adaptive Content Exchange (ACE) initiative announced June 21. "Our combined solution puts the levels of intelligence and power at the network edge that our customers need to thrive in the digital marketplace."

CacheFlow and Akamai develop complementary solutions. CacheFlow's simple, reliable appliances locally store and serve the Internet content most often requested by users, while simultaneously monitoring the source of that content for changes. Akamai's FreeFlow service employs sophisticated algorithms to monitor the Internet in real time, understand the location of the requesting user and make intelligent decisions as to which of Akamai's over 4,000 globally-dispersed servers could most efficiently deliver the requested content.

Through an existing joint-development agreement, CacheFlow has integrated Akamai's "Akamaizer" software with its CacheOS(TM) operating system to automate Web-content distribution. When used in tandem with the FreeFlow service and deployed between a content provider's and Akamai's servers, CacheFlow appliances field the site's Web requests and route content to an Akamai server based on site-specific policies. As a result, end users receive content more quickly, and enterprises and Web-site owners benefit from unprecedented network performance and scalability while conserving server and firewall resources.

"We are pleased to add a marquee company like Akamai as another strong partner as we continue to focus on expanding our distribution channels," said Brian NeSmith, president and chief executive officer of CacheFlow. "Together, Akamai and CacheFlow offer a compelling content-acceleration solution that provides the value our customers want -- performance, intelligence, reliability, scalability and ease of installation and maintenance. We look forward to continuing to work with Akamai in developing content solutions for our broad, combined customer base."

About CacheFlow Inc.

CacheFlow is a leading provider of content acceleration and management solutions that accelerate and optimize the flow of information over the Internet. CacheFlow solutions -- containing the CacheOSTM operating system -- boost the performance of e-commerce Web sites, enhance the productivity of Internet users and reduce overall network costs for Internet service providers and enterprises. In addition, CacheFlow content acceleration appliances are designed to provide better network security and more up-to-date content than traditional caching solutions. Based in Sunnyvale, California, CacheFlow can be contacted via telephone at [phone], fax at [phone] or email at [e-mail].

About Akamai

Akamai is the foremost provider of global, high performance services for the delivery of Internet content, streaming media, and applications, serving over 1,000 customers. Akamai has the broadest deployment of servers for content, streaming media, and applications delivery with more than 4,000 servers in over 45 countries directly connected to more than 160 different telecommunications networks. Akamai (pronounced AH kuh my) is Hawaiian for intelligent, clever and cool.

CacheFlow Statement Under the Private Securities Litigation Reform Act 

The statements contained in this press release that are not purely historical are forward-looking statements, including statements regarding CacheFlow's expectations, beliefs, intentions or strategies regarding the future. All forward-looking statements included in this press release are based upon information available to CacheFlow as of the date hereof, and CacheFlow assumes no obligation to update any such forward-looking statements. Forward-looking statements involve risks and uncertainties, which could cause actual results to differ materially from those projected. These and other risks relating to CacheFlow's business are set forth in CacheFlow's Form S-1, as amended and declared effective by the Securities and Exchange Commission on November 18, 1999, the Form 10-Q for the period ended January 31, 1999, and other reports filed from time to time with the Securities and Exchange Commission.

Akamai Statement Under the Private Securities Litigation Reform Act

The release contains information about future expectations, plans and prospects of Akamai's management that constitute forward-looking statements for purposes of the safe harbor provisions under The Private Securities Litigation Reform Act of 1995. Actual results may differ materially from those indicated by these forward-looking statements as a result of various important factors including, but not limited to, the dependence on Akamai's Internet content delivery service, a failure of its network infrastructure, the complexity of its service and the networks on which the service is deployed, the failure to obtain access to transmission capacity and other factors that are discussed in the Company's Annual Report on Form 10-K and other documents periodically filed with the SEC.

CacheFlow is a registered trademark of CacheFlow Inc. in the U.S. and worldwide. All other company and product names are used for identification purposes only and may be trademarks of their respective owners.