1. A method of controlling access to requested web content, implemented on at least one processor, comprising: receiving, using at least the processor, a request for access to web content located at an address specified by a uniform resource locator (URL); determining which processes are spawned by the web content identified by the URL; comparing which processes are spawned with a list to determine properties of the URL; and determining, using at least the processor, whether to allow the request based at least partly on the determined properties.