1. A method for scoring and grading websites by observing script behaviors in a browser emulator, comprising: providing one or more virtual machines on a computing system comprising a processor configured by an operating system; providing a communications link for each virtual machine to access hosts coupled to the Internet; within a virtual machine, providing an enhanced browser emulator application wherein said enhanced browser emulator is enhanced by replacing standard Application Programming Interfaces (APIs), libraries, and functions in a resource from a source website with instrumented operations, wherein the instrumented operations check the number of invocations of any of the APIs, libraries, and functions against a threshold and take action upon reaching the threshold; receiving a Uniform Resource Identifier (URI) for the source website for which content is to be graded for hostile intent, wherein a URI comprises a protocol and a fully qualified domain name; requesting by the browser a resource from said source website; receiving said resource; determining if shell code is contained within said resource from said source website; determining if executable code is contained within said resource; observing a behavior of the enhanced browser emulator as controlled by said executable code contained within the said resource and scoring said behaviors for hostile intent.