I kinda wondered if that was the thought process, but the extra length of the v6 address only adds 12 bytes to the DNS packet. There's still a bunch of other st

I kinda wondered if that was the thought process, but the extra length of the v6 address only adds 12 bytes to the DNS packet. There's still a bunch of other stuff in the packet; dig says the size for my test query goes from 361 bytes to 373 bytes, which is only a 3.3% increase. Even at a rather slow 1 Mbit/s that would only add 100µs to transmit a packet that takes in total ~3ms to transmit. And that 3ms is likely smaller than the latency in the lookup, which is generally going to be the dominating factor.