You use IPv4 protocol.
http://www.polarhome.com supports IPv6 too.

Hostname=
IP address=35.172.165.64

ISP information:





Connection information:
Connection=Keep-Alive
User agent=CCBot/2.0 (https://commoncrawl.org/faq/)
Remote port=48660
Server port=80
Protocol=HTTP/1.1
Language=en-US,en;q=0.5
Request=GET

nslookup response:
Server:		192.168.10.1
Address:	192.168.10.1#53

Non-authoritative answer:
64.165.172.35.in-addr.arpa	name = ec2-35-172-165-64.compute-1.amazonaws.com.

Authoritative answers can be found from:

dig -x response:

; <<>> DiG 9.8.4-P1-RedHat-9.8.4-3.P1.fc16 <<>> -x 35.172.165.64
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 41861
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;64.165.172.35.in-addr.arpa.	IN	PTR

;; ANSWER SECTION:
64.165.172.35.in-addr.arpa. 299	IN	PTR	ec2-35-172-165-64.compute-1.amazonaws.com.

;; Query time: 5 msec
;; SERVER: 192.168.10.1#53(192.168.10.1)
;; WHEN: Fri Dec  1 21:06:08 2023
;; MSG SIZE  rcvd: 99

dig A response:

; <<>> DiG 9.8.4-P1-RedHat-9.8.4-3.P1.fc16 <<>> A 35.172.165.64
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 31330
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;35.172.165.64.			IN	A

;; AUTHORITY SECTION:
.			10800	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2023120101 1800 900 604800 86400

;; Query time: 40 msec
;; SERVER: 192.168.10.36#53(192.168.10.36)
;; WHEN: Fri Dec  1 21:06:08 2023
;; MSG SIZE  rcvd: 106