Since around 2021/11/10, querying
whoami.cloudflare. via DNS-over-HTTS has been giving
0.0.0.0 instead of my public IP address. Here is the command to quickly check the result using the dog tool:
dog --class=CH --type=TXT -H @https://126.96.36.199/dns-query whoami.cloudflare.
I wonder if this is the expected result? If not, how should I report the issue?
PS: As a workaround, I (re)implemented a parser for https://188.8.131.52/cdn-cgi/trace to get my public IP address, but I still prefer the DoH solution if it is available.