> Assuming you're running your own DNS server, you could also check the logs to see how many queries you get for the "port" SvcParamKey.

Any DNS responses for an HTTPS/SVCB record will always include all parameters, so you can't really test things that way. But I do run my own DNS server, and in the past 90 days, it issued 206 071 A responses, 122 314 AAAA responses, and 4 426 HTTPS responses, so HTTPS RR requests are still fairly rare.

Interesting. I also run my own DNS servers (for about two dozen domains). Over the past seven days, my servers logged 91923 A responses, 39667 AAAA responses, and 162 HTTPS responses, which comes to ~0.123%. I'm surprised it's that high.

Your numbers are more than 10 times higher than mine.