@jvazquez-r7 after testing with without the check it does work and rangewalker does parse the DNS name into IPv4/6 addresses which are scanned but it also makes the metasploit machine do the DNS look up whereas if I leave the check in the vulnerable wordpress site will do the DNS look up. I think it would be better to have no packets from the metasploit machine hit the target at all due to the nature of this module.