In Forrester's 26-criteria evaluation of web content security delivered as a software-as-a-service (SaaS) solution, we identified the eight most significant providers in the category — Barracuda Networks, Blue Coat Systems, Cisco, iboss, Intel Security (McAfee), Symantec, Websense, and Zscaler — and researched, analyzed, and scored them. This report provides an overview of the web content security market and discusses why organizations should consider shifting from traditional on-premises web gateways/forward proxies to a SaaS model. The report details our findings about how well each vendor fulfills our criteria and where they stand in relation to each other, to help security and risk (S&R) professionals select the right partner for their SaaS-delivered web content security.