A system and computer program product for implementing a method for restricting access to information transmitted over a computing network. A computer receives a resource request for a resource to be located. The resource request contains a universal resource locator (URL). The computer determines that the requested resource is available and in response, the computer locates the requested resource contained in the resource request. The computer determines whether encryption of the contained. URL is required. The computer may determine whether encryption is required for a return URL of the requested resource that is to be returned to a location of the resource request. After the computer determines that the requested resource is available, the computer may: determine that encryption of the requested resource is required and in response, determine an encrypted value of the requested resource.