Dig is a DNS lookup utility provided by ISC. This page is a simple web interface for dig.
$ dig nstld.verisign-grs.com.
; <<>> DiG 9.16.1-Ubuntu <<>> nstld.verisign-grs.com.
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 21173
;; flags: qr rd ra ad; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;nstld.verisign-grs.com. IN A
;; AUTHORITY SECTION:
verisign-grs.com. 4 IN SOA av1.nstld.com. mdnshelp.verisign.com. 1618273114 300 7200 1209600 5
;; Query time: 11 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Tue Apr 13 04:06:07 UTC 2021
;; MSG SIZE rcvd: 115