216.73.216.55

IP versionIPv4
Reverse DNS–
ConnectionHTTPS (HTTP/2.0)
User agentMozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
Accept-Language–

From the command line

Returns just the IP as plain text:

curl https://pfeffer.or.at/ip
Invoke-RestMethod https://pfeffer.or.at/ip

In a browser, append ?text for plain text. This server is reachable via IPv4 only, so you’ll always see your IPv4 address here. Nothing is stored beyond the hosting provider’s regular server logs.