IPv6 Address Checker

A lightweight utility hosted on Cloudflare Pages that returns the user’s public IP address as plain text. Perfect for CLI usage with curl or quick browser checks.

Usage

CLI

• Get your IPv6 address:

  curl -6 https://checkipv6.ipcow.com/

  Example output: 2606:4700:4700::1001

Browser

• Visit https://checkipv6.ipcow.com/
• Displays your IPv6 address if you have one assigned as plain text.

How It Works

• Built with Cloudflare Pages and a single Function (functions/\[\[path]].js).
• Uses the CF-Connecting-IP header to detect the client’s public IP.
• Returns plain text for simplicity and expanded use cases.

Notes

This service requires an IPv6 connection. If you run curl https://checkipv6.ipcow.com/ without -6 and get “No IPv6 address detected,” your client likely connected over IPv4. Use curl -6 https://checkipv6.ipcow.com/ to force an IPv6 connection and retrieve your IPv6 address. If your network lacks IPv6 support, this service will not return an IP address.

Use https://checkip.ipcow.com/ instead. For a dual-IP display, check out https://ipcow.com/. No external dependencies—just pure Cloudflare magic. Use at your will, no guarantees implied.

License

MIT License - feel free to use, modify, and share!