I don't think this is possible, but figured double-check. For our IoT aruba role, we block access to all of our public websites (address space) as a method of discouraging students from registering their laptops, mac books, etc on the IoT network. This has worked well for 99% of the all devices, however, we've come across a streaming service that hosts a playlist file behind one of the pulic web servers - that Alexa needs access to. Is it possible to get more granular with the polices (url/dns level) to permit a specific URL - but block rest of the domain? Otherwise I'm envisioning only other way is a dedicated web server (single ip address) to host this one streaming file.