-- If you squint, you can see some details like: TLSv1.3 (only), NSID, EDNS TCP Keepalive, and EDNS padding to thwart length analysis bblack@dns4002:~$ kdig +tls-hostname=ns1.wikimedia.org +nsid @ns1.wikimedia.org en.wikipedia.org A ;; TLS session (TLS1.3)-(ECDHE-SECP256R1)-(ECDSA-SECP256R1-SHA256)-(CHACHA20-POLY1305) ;; ->>HEADER<<- opcode: QUERY; status: NOERROR; id: 60073 ;; Flags: qr aa rd; QUERY: 1; ANSWER: 1; AUTHORITY: 0; ADDITIONAL: 1 ;; EDNS PSEUDOSECTION: ;; Version: 0; flags: ; UDP size: 1024 B; ext-rcode: NOERROR ;; Option (11): 0172 ;; NSID: 646E7334303032 "dns4002" ;; PADDING: 373 B ;; QUESTION SECTION: ;; en.wikipedia.org. IN A ;; ANSWER SECTION: en.wikipedia.org. 86400 IN CNAME dyna.wikimedia.org. ;; Received 468 B ;; Time 2019-12-12 21:20:07 UTC ;; From 208.80.153.231@853(TCP) in 38.4 ms