CONNECTIVITY
What’s My IP Address?
Display the public IPv4 or IPv6 address seen by the 39D Network Toolbox, together with the connection protocol and proxy-detection status.
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What’s My IP Address?
HOW IT WORKS
About the What’s My IP Address?
Your browser makes a normal HTTPS request to the toolbox. The server reports the source address attached to that request. When the site is behind a trusted reverse proxy, the administrator can explicitly enable trusted proxy-header handling so the original client address is shown instead of the proxy address.
How to use this result
- Run the automatic check.The page asks the toolbox what source address it sees for this browser request.
- Compare it with your router or VPN.A different address can indicate NAT, carrier-grade NAT, a proxy, VPN or privacy relay.
- Check the protocol.The result identifies whether this request arrived over IPv4 or IPv6.
- Run the IPv6 support test.Use the related browser test to check separate IPv4-only and IPv6-only endpoints.
Common interpretation issues
- A VPN, mobile carrier gateway, corporate firewall or privacy relay can change the address visible to websites.
- Several devices can share one public IPv4 address through NAT or carrier-grade NAT.
- Proxy headers must only be trusted when the web server cannot be reached directly.
NEED HELP INTERPRETING THE RESULT?
39D supports business networks, cyber security and managed IT.
For ongoing support or a larger infrastructure project, speak to the 39D team.
Frequently asked questions
Is this my private home-network address?
No. It is the public address presented to this website. Your local address is normally hidden behind a router or carrier gateway.
Why does my IP address change?
Many broadband and mobile providers assign addresses dynamically. VPNs and privacy services also replace the visible address.
Can the result be IPv6?
Yes. If this page was reached over IPv6, the address and protocol are shown as IPv6.