Keynote Launches 'Keynoted for Performance' Mark Program; Enables Web-Site Operators to Graphically Signify Commitment to Excellence in Web Site Performance.

Business Editors/High-Tech Writers

SAN FRANCISCO--(BUSINESS WIRE)--Sept. 7, 2000

At the opening of its 2000 Global Internet Performance Conference, Keynote (Nasdaq:KEYN), The Internet Performance Authority(R), announced today a new Keynote Mark Program which is designed for use by Keynote subscribers to graphically signify their commitment to ensuring the highest levels of Web site performance for their users as possible.

Keynote is the recognized standard in Web-site benchmarking and application performance measurement from the end-user perspective. By prominently posting the "Keynoted for Performance" symbol on their Web sites, e-commerce companies graphically illustrate to customers their commitment to deliver the best online Quality of Experience possible through their subscription to Keynote, the trusted Internet performance authority and standard-bearer for commitment to excellence in Web site performance.

"By subscribing to Keynote, an e-business has taken a major step in helping to ensure excellent Web site performance for its end user customers," said Umang Gupta, chairman and CEO of Keynote. "Customers should take the next step and post the Keynoted for Performance mark on their site to leverage the full value of the Keynote brand and of what their Keynote subscription connotes: Commitment to excellence in Web site performance, 24/7."

The "Keynoted for Performance" seal consists of a special logo and the tagline: The Symbol of Quality e-Commerce. When users click on the seal the following words appear: "This Web Site is Keynoted for Performance."

For more information about the "Keynoted for Performance" Mark Program, and to find out how to easily download the seal to their site, Keynote subscribers should go to http://www.keynote.com/keynoted/.

About Keynote

Keynote, The Internet Performance Authority(R), is the world's leading provider of e-commerce performance benchmarking, diagnostic, load-testing and consulting services. The company markets Keynote Perspective(TM), Transaction Perspective(TM), Consumer Perspective(TM), Diagnostic Perspective(TM), Desktop Analyzer(TM) and Keynote Red Alert(TM), global real-time services that measure, assure and improve the quality of service of e-commerce Web sites around the world and KeyReadiness(TM), an accurate and realistic pre- and post- deployment Web-site load testing service. Keynote currently measures more than 12,500 URLs using its global infrastructure of more than 800 measurement computers connected to the major Internet backbones from over 120 statistically selected Internet access locations in 50 metropolitan areas worldwide. Internet performance and availability data are collected at Keynote's sophisticated operations center and are instantly available to customers through any Web browser.

Keynote customers include over 2,250 leading e-commerce Web sites and hosting companies including AdForce (Nasdaq:CMGI), Akamai (Nasdaq:AKAM), Blockbuster (NYSE:BBI), Compaq Computer (NYSE:CPQ), Cisco Systems (Nasdaq:CSCO), Dell Computer (Nasdaq:DELL), Digital Island (Nasdaq:ISLD), Digex (Nasdaq:DIGX), DoubleClick (Nasdaq:DCLK), Global Center (Nasdaq:GBLX), Microsoft (Nasdaq:MSFT), National Semiconductor (NYSE:NSM), SABRE Holdings (NYSE:TSG), UPS (NYSE:UPS) and WorldCom/UUNET (Nasdaq:WCOM).

Keynote is a member of the internationally known Stanford University Statistics Department's Industrial Affiliates Program. Keynote works with experts in the program to help define its methodology for measuring Web site performance and ensure the accuracy of its data.

For further information about Keynote, visit the Keynote Web site at http://www.keynote.com or contact the company at Keynote Systems Inc., 2855 Campus Drive, San Mateo, California 94403, telephone [phone], fax [phone], email [e-mail] or call Keynote's public relations hotline at 650/522-1234. To be added to Keynote's press-release distribution list, send an email to [e-mail] and specify your press affiliation. Investors interested in additional information should contact Jenniffer Siemaszko, Keynote's manager of investor relations, at [e-mail] or 650/522-1026.

The Internet Performance Authority is a registered trademark and Keynote, Perspective, Desktop Analyzer, Keynote Red Alert, KeyReadiness and MyKeynote and are trademarks of Keynote Systems, Inc. Other trademarks are the property of their respective owners.

Note to press and analysts: Call Keynote's media and analyst-relations hotline at 650/522-1234 to request additional information or an interview. To be added to Keynote's press-release distribution list, send an email to [e-mail] and specify your press affiliation.