e.g.
dig test.tld
; <<>> DiG 9.10.6 <<>> test.tld
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 3826
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;test.tld. IN A
;; ANSWER SECTION:
test.tld. 6529 IN CNAME *.test.tld.cdn.cloudflare.net.
*.test.tld.cdn.cloudflare.net. 300 IN A 1.1.1.1
*.test.tld.cdn.cloudflare.net. 300 IN A 1.1.1.1
;; Query time: 67 msec
;; SERVER: 192.168.0.1#53(192.168.0.1)
;; WHEN: Tue Mar 01 18:54:45 GMT 2022
;; MSG SIZE rcvd: 128
With a CNAME setup
test -> *.test, ares is rejecting the response as invalid.e.g.
Seems related to #424
Posted in node too: nodejs/node#42171