Studio City technology company NetDNA has added a popular website to its roster of clients.

NetDNA announced Monday that StumbleUpon will seek to boost the performance of its website using NetDNA’s content delivery network.

So-called CDNs are redundant servers that host a website’s content to protect from main server crashes or other issues. They also allow people to access a website much faster than transferring that data over a network.

StumbleUpon is a website popular with young people that acts like a personalized search engine. People indicate their interests and StumbleUpon then recommends sites it thinks a user might enjoy.

“The social media market is crowded, therefore it is imperative that we provide our users with an experience that is superior to all other discovery engines,” Anoakie Turner, software architect for StumbleUpon, said in a statement.

NetDNA works with other tech customers such as Swiss GPS maker Garmin and tech news website TheNextWeb.com. The company has some local competition from CDN provider EdgeCast Networks in Santa Monica, which works with customers such as Miracle Mile online video company Break Media and Silicon Valley social network Pinterest.

For NetDNA, which is a small player in a field dominated by a few giants, adding a customer such as StumbleUpon is only a small step toward more market share.

“With more than 25 million users worldwide, StumbleUpon was in need of a Web performance optimization solution that scales worldwide,” Samir Said, NetDNA’s vice president of sales, said in a statement. “It is an honor to be selected by StumbleUpon and we look forward to a successful relationship with the company.”