Finn checked what address your browser is reaching IPFerret from. If you see an IPv6 address below, you have end-to-end IPv6 connectivity to this server. If it's IPv4, either your ISP, your router, or this network hop isn't routing v6.
Reached IPFerret over
IPv4 only
216.73.216.49We received your request over IPv4. That's still common — most consumer networks dual-stack and will use whichever works.
Why does IPv6 matter?
IPv4 has only ~4.3 billion addresses, all allocated decades ago. IPv6 has 340 undecillion. Carriers and large hosts are moving traffic to IPv6 because IPv4 is in short supply — you may see lower latency, fewer NAT issues, and direct peer-to-peer connections on v6.
How to enable IPv6
- Check that your home router has "IPv6" enabled — most do by default.
- Ask your ISP whether they offer "native IPv6" — some still don't.
- If you use a VPN, confirm it forwards IPv6 traffic (many leak or drop it).
Want to check whether your DNS resolver is leaking? Try the DNS leak test.