Sina.com Secures and Accelerates Delivery of Application to More Than 100 Million Users

Market Wire, November, 2004

NetScaler, Inc., the global leader in application delivery systems, today announced that SINA Corporation (NASDAQ: SINA), a leading online media company and value-added information service provider for China and for global Chinese communities, has deployed NetScaler 9000 Series application delivery systems to optimize the performance and enhance the security of Sina.com, China's largest portal and one of the world's busiest Internet sites. NetScaler's impressive customer list now showcases the world's four highest-traffic Internet properties -- Google, Yahoo!, MSN and Sina.com. The growth and complexity of today's generation of business-critical applications as well as the need for a smarter, more secure application infrastructure led to Sina.com's decision to deploy NetScaler's comprehensive application delivery systems.

With 102.9 million registered users and more than 12 million active users for a variety of fee-based services, Sina.com is the most recognized Internet brand name in China and among the global Chinese community. Recently, Sina.com delivered news and information for the 2004 Olympic Games in Athens, working with the Chinese government and the Chinese Olympic team to provide live online coverage of the event.

"Millions of people in China were relying on Sina.com for the latest Olympic news and images from Athens and we wanted to guarantee that we could meet the demand," says Li Song Bo, vice president of engineering, Sina.com. "NetScaler exceeded our expectations in accelerating and securing our applications and content, even during peak hours, to provide a seamless user experience to millions of our customers."

According to Nielsen/NetRatings Market Intelligence report, traffic on Sina.com's Olympic site grew each time the Chinese national team received a gold medal. The day after China won five gold medals, the number of visitors spiked 56 percent as compared to the first day of the Olympics. And, traffic to Liu Xiang's Web page increased 742 percent after the young runner claimed China's first gold medal in the 110m hurdles.

"We are extremely pleased that SINA chose NetScaler to meet China's insatiable demand for live Internet content from the recent 2004 Olympics," states B.V. Jagadeesh, president and CEO, NetScaler. "Our application acceleration and security technology has attracted countless Global 1000 enterprises and the most prestigious global brands in every vertical industry. We could not be more thrilled with our recent rise to become the undisputed leaders of the application delivery space."

About SINA Corporation

SINA Corporation (NASDAQ: SINA) is a leading online media company and value-added information service (VAS) provider for China and for global Chinese communities. With a branded network of localized web sites targeting Greater China and overseas Chinese, SINA provides services through five major business lines including SINA.com (online news and content), SINA Mobile (mobile value-added services), SINA Online (community-based services and games), SINA.net (search and enterprise services) and SINA E-Commerce (online shopping and travel). Together these provide an array of services including region-focused online portals, mobile value-added services, search and directory, interest-based and community-building channels, free and premium email, online games, virtual ISP, classified listings, fee-based services, e-commerce and enterprise e-solutions.

About NetScaler

NetScaler provides networking systems that enable fast and secure delivery of applications by integrating a unique suite of optimization, security and switching capabilities. NetScaler's 9000 Series application delivery systems provide improved application performance and hardened security for many of the world's largest enterprises, content providers and e-commerce vendors while greatly reducing total cost of ownership.

NetScaler headquarters are in San Jose, California. For more information, visit http://www.netscaler.com.

NetScaler is a trademark of NetScaler, Inc. in the United States and other countries. All other product and company names mentioned herein may be trademarks of their respective holders.

Contact: Stephanie Xavier NetScaler, Inc. (408) 678-1725 sxavier@netscaler.com