(Note: "IP-NODATA-AAAA" returns the IP address of the Pi-Hole as the page location. When Pi-Hole tries to load the page, it returns a 404 error and re-directs to the custom block page. Null returns an IP of 0.0.0.0 which will not help directing to the block page. "IP" and the other options also do not return a useful IP address for our purposes.)