Media and entertainment represents the largest content segment under contract by content delivery networks (CDNs), accounting for 48.6 percent of the market, according to a new analysis of the market from AccuStream Research.

Part of the “CDN Operational, Account and Content Vertical Analytics 2012-2015” report, the market analysis identified professional video, digital video advertising and Internet music radio as highly penetrated CDN vertical markets.

Professional video bandwidth fees are responsible for a 35.8 percent share of the available market, including self-hosting sites, followed by user-generated content (UGC ) video at 19.6 percent, mobile video (views and advertising) at 14.8 percent and music radio/song plays at 11.7 percent.

The analysis also revealed that CDNs raised contract revenue 18.3 percent last year, to $2.28 billion, as value-added services in addition to core bandwidth provision for large video accounts.