A simple DNS lookup tool
Domain root.visla.utia.cas.cz
Type A
Server Quad9
Duration 455 ms
Results
;; Answer received from 9.9.9.9 (81 bytes)
;;
;; Security Level : UNCHECKED
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 13504
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION (1  record)
;; root.visla.utia.cas.cz.	IN	A

;; AUTHORITY SECTION (1  record)
utia.cas.cz.	3600	IN	SOA	visla.utia.cas.cz. root.utia.cas.cz. 2233 14400 3600 1500000 86400
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