Your IPv4 is:

WEB server detects connection from IPv4 address shown below

Server will return only IP without html decoration
if it detecting cURL, wget or if HTTP_USER_AGENT is not set
$ wget -qO- https://ping.gymclub.eu
$ curl -s https://ping.gymclub.eu
$ exec 5<>/dev/tcp/ping.gymclub.eu/80 ; echo -e "GET /text.php HTTP/1.1\nHOST: ping.gymclub.eu\nConnection: Close\n" >&5 ; cat <&5 | sed ':a;N;$!ba;s/.\+\r\n\r\n//g'
if you want to use ip detection in your automation scripts try text.php
It'll return only your IP address without trying to detect your HTTP_USER_AGENT.

Your User Agent is:
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)