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

Hostname=
IP address=3.137.176.125

ISP information:





Connection information:
Connection=
User agent=Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
Remote port=46097
Server port=80
Protocol=HTTP/1.1
Language=
Request=GET

nslookup response:
Server:		192.168.10.36
Address:	192.168.10.36#53

Non-authoritative answer:
125.176.137.3.in-addr.arpa	name = ec2-3-137-176-125.us-east-2.compute.amazonaws.com.

Authoritative answers can be found from:
176.137.3.in-addr.arpa	nameserver = ns1-24-us-east-2.ec2-rdns.amazonaws.com.
176.137.3.in-addr.arpa	nameserver = ns2-24-us-east-2.ec2-rdns.amazonaws.com.
176.137.3.in-addr.arpa	nameserver = ns3-24-us-east-2.ec2-rdns.amazonaws.com.
176.137.3.in-addr.arpa	nameserver = ns4-24-us-east-2.ec2-rdns.amazonaws.com.
ns1-24-us-east-2.ec2-rdns.amazonaws.com	internet address = 205.251.196.107
ns2-24-us-east-2.ec2-rdns.amazonaws.com	internet address = 205.251.192.115
ns3-24-us-east-2.ec2-rdns.amazonaws.com	internet address = 205.251.199.23
ns4-24-us-east-2.ec2-rdns.amazonaws.com	internet address = 205.251.194.102

dig -x response:

; <<>> DiG 9.8.4-P1-RedHat-9.8.4-3.P1.fc16 <<>> -x 3.137.176.125
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 60659
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 4

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

;; ANSWER SECTION:
125.176.137.3.in-addr.arpa. 300	IN	PTR	ec2-3-137-176-125.us-east-2.compute.amazonaws.com.

;; AUTHORITY SECTION:
176.137.3.in-addr.arpa.	300	IN	NS	ns4-24-us-east-2.ec2-rdns.amazonaws.com.
176.137.3.in-addr.arpa.	300	IN	NS	ns2-24-us-east-2.ec2-rdns.amazonaws.com.
176.137.3.in-addr.arpa.	300	IN	NS	ns1-24-us-east-2.ec2-rdns.amazonaws.com.
176.137.3.in-addr.arpa.	300	IN	NS	ns3-24-us-east-2.ec2-rdns.amazonaws.com.

;; ADDITIONAL SECTION:
ns1-24-us-east-2.ec2-rdns.amazonaws.com. 300 IN	A 205.251.196.107
ns2-24-us-east-2.ec2-rdns.amazonaws.com. 300 IN	A 205.251.192.115
ns3-24-us-east-2.ec2-rdns.amazonaws.com. 300 IN	A 205.251.199.23
ns4-24-us-east-2.ec2-rdns.amazonaws.com. 300 IN	A 205.251.194.102

;; Query time: 1 msec
;; SERVER: 192.168.10.36#53(192.168.10.36)
;; WHEN: Wed Feb  5 05:00:28 2025
;; MSG SIZE  rcvd: 304

dig A response:

; <<>> DiG 9.8.4-P1-RedHat-9.8.4-3.P1.fc16 <<>> A 3.137.176.125
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 17181
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;3.137.176.125.			IN	A

;; AUTHORITY SECTION:
.			10800	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2025020401 1800 900 604800 86400

;; Query time: 47 msec
;; SERVER: 192.168.10.36#53(192.168.10.36)
;; WHEN: Wed Feb  5 05:00:28 2025
;; MSG SIZE  rcvd: 106