Any time a twin-stack host queries a DNS server to solve a completely capable area name (FQDN), the DNS consumer on the host sends two DNS requests, one querying A data and the opposite querying AAAA data. My Existing Spot Verify is usually a no cost on the internet tool https://martincgcxt.blogunok.com/26401116/an-unbiased-view-of-whatsmyip