Keynote Honored with Technology Innovation Award From Frost & Sullivan.(Company overview)

Recognized for Web and Mobile Cloud Monitoring

-- Frost & Sullivan Recognizes Keynote for Providing Performance Monitoring Across the Mobile and Fixed Web

-- "No Other Company Has Achieved Keynote's Combined Penetration into Both Telecom and Enterprise"

SAN MATEO, Calif. -- Keynote Systems (Nasdaq:KEYN), the global leader in Internet and mobile cloud monitoring, today announced that it has been awarded the 2011 Global Frost & Sullivan Award for Technology Innovation in the Web and mobile cloud monitoring market. Based on a recent analysis of the Web and mobile cloud monitoring market, Stratecast, a division of Frost & Sullivan, said Keynote offers comprehensive functionality in both the mobile and fixed Web for large enterprise companies and communication service providers. Frost & Sullivan went on to say that Keynote's granular measurements of how specific Web and mobile applications are performing from the end user perspective around the world are today influencing companies in the important choices they make regarding functionality. Frost & Sullivan concluded, "Website performance feeds directly into the mobile user experience and Keynote is uniquely suited to test and monitor the user experience for each of the three key means of delivering mobile content - downloadable mobile apps, SMS and mobile websites." To read the complete report about Keynote's Technology Innovation Award presented by Frost & Sullivan view: http://www.keynote.com/docs/news/Technology_Innovation_Award.pdf

"Long acknowledged as the leader in providing PC-based performance monitoring for websites and applications, Keynote has added the capabilities necessary to do the same for the mobile market - testing Web and mobile applications on phones and PDAs," said Jeff Cotrupe, global program director at Stratecast, a division of Frost & Sullivan. "No other company has yet achieved Keynote's combined penetration into communication service providers, small/medium businesses (SMBs) and enterprises. Any business wanting to test how a new product or application 'plays' in both the desktop and mobile worlds is likely to shortlist Keynote."

"For companies running all or parts of their business on the Internet, severe disruptions faced by customers are magnified exponentially due to the adoption of cloud computing, social media and the micro-news cycles generated by Twitter and blogs," observed Cotrupe. "So the ability of Keynote to measure and stress-test customer experiences can enable improvements that delight connected customers."

"We are pleased to be recognized by Frost & Sullivan for our innovation," said Anshu Agarwal, vice president of marketing for Keynote Systems. "For over 15 years we've helped the best online companies deliver an outstanding online experience and our innovations in cloud monitoring are helping the next batch of companies compete and win."

Each year, Frost & Sullivan presents technology innovation awards to companies demonstrating uniqueness in developing a technology which significantly impacts both the functionality and the customer value of new products and applications. The award lauds the relevance of the innovation to the industry.

Frost & Sullivan's Best Practices Awards recognize companies in a variety of regional and global markets for demonstrating outstanding achievement and superior performance in areas such as leadership, technological innovation, customer service and strategic product development. Industry analysts compare market participants and measure performance through in-depth interviews, analysis and extensive secondary research in order to identify best practices in the industry.

About Keynote

Keynote Systems (NASDAQ:KEYN) is the global leader in Internet and mobile cloud monitoring. We provide companies with solutions for continuously improving the online experience. Founded in 1995, Keynote delivers testing, monitoring and measurement products and services for any enterprise including online portals, e-commerce sites, B2B sites, mobile operators and mobile infrastructure providers. Keynote products and services help companies improve customer experience in four areas: Web performance, mobile quality, streaming and real user experience testing.

Known as The Mobile and Internet Performance Authority[TM], Keynote has a market-leading on-demand infrastructure of over 3,000 measurement computers and mobile devices in over 275 locations around the world. Keynote's 2,800 customers represent top Internet and mobile companies including American Express, AT&T, Disney, eBay, E*TRADE, Expedia, Google, Microsoft, SonyEricsson, T-Mobile and Vodafone.

Keynote Systems, Inc. is headquartered in San Mateo, California and can be reached at www.keynote.com or by phone in the U.S. at 1-800-KEYNOTE.

Keynote[R], DataPulse[R], CustomerScope[R], Keynote CE Rankings[R], Keynote Customer Experience Rankings[R], Perspective[R], Keynote Red Alert[R], Keynote Traffic Perspective[R], Keynote WebEffective[R], The Internet Performance Authority[R], MyKeynote[R] , SIGOS[R], SITE[R], Keynote[TM], The Mobile & Internet Performance Authority[TM], Screen Sensing Technology and Keynote FlexUse[TM] are trademarks or registered trademarks of Keynote Systems, Inc. in the United States and/or other countries. All other trademarks are the property of their respective owners. [c] 2011 Keynote Systems, Inc.