4 ms·

It's pre-existing logic. wtfismyip.com has both A and AAAA records and uses Javascript to display the IPv4 address if the request comes in over IPv6 on https:/

by QUFB 10y ago

It's pre-existing logic. wtfismyip.com has both A and AAAA records and uses Javascript to display the IPv4 address if the request comes in over IPv6 on https://wtfismyip.com/ https://wtfismyip.com/. ipv4.wtfismyip.com only has A record. ipv6.wtfismyip.com only has an AAAA record.