Dig is a DNS lookup utility provided by ISC. This page is a simple web interface for dig.
$ dig 2a02:a000:0:ffff:ffff:ffff:ffff:ffff PTR
; <<>> DiG 9.16.1-Ubuntu <<>> 2a02:a000:0:ffff:ffff:ffff:ffff:ffff PTR
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 51246
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 65494
;; QUESTION SECTION:
;2a02:a000:0:ffff:ffff:ffff:ffff:ffff. IN PTR
;; Query time: 4 msec
;; SERVER: 127.0.0.53#53(127.0.0.53)
;; WHEN: Mon Jun 05 10:57:46 UTC 2023
;; MSG SIZE rcvd: 65