Content delivery network Instart Logic rakes in $26 million in funding

Mountain View-based Instart Logic, a content-delivery network, just landed $26 million in Series C funding, bringing the company’s total to $52 million. According to Manav Mital, the firm’s CEO and cofounder, the majority of this round of funding will be used to boost the company’s sales and marketing efforts as the company goes toe-to-toe with content delivery network bigwigs Akamai Technologies and Limelight Networks.

Instart Logic takes a software-centric approach to content delivery. Legacy content delivery network providers maintain thousands of servers placed worldwide in order to quickly deliver content depending on the geographic location of the user. Limelight, for example, has over 18,000 servers in over 80 locations, according to CDN Planet, a site that compares content delivery network providers.

Instead of operating thousands of servers worldwide, Mital said that Instart Logic uses a client-side component that it built in JavaScript code and that executes in a user’s browser. When a user loads up a webpage for one of Instart Logic’s clients, the component redirects the traffic to the company’s cloud servers — maintained over thirty service sites worldwide — and breaks down the site’s information into fragments that the service itemizes and then sends back to the user in chunks instead of delivering the whole package. Because of this, Mital said, websites can load faster as the important information, like large images or flash, can be generated up front while the rest loads. Whereas with other content delivery networks, a user might have to wait while the networks’ servers transmit data from stored web caches to the user in its entirety.

Mital said the technology is analogous to streaming video, in which a user can begin watching a video file while the rest of it loads.

The company counts The Washington Post,, Omni Hotels & Resorts, and New Relic among its stable of clients.

Kleiner Perkins Caufield & Byers was the main backer in this round of financing along with Andreessen Horowitz, Greylock Partners, Sutter Hill Ventures and Tenaya Capital, who were all previous investors.