IP Address Checker

Check IP, GeoIP, reverse DNS hostname, ISP, User Agent, Referrer, and WebRTC leaks

Local Processing Only

🌐 Your IP Address

(Source IP as seen by the server)

📡 Connection Summary

Uses GeoIP and reverse DNS (PTR) to show approximate non-GPS location and connection details.

Approximate Location (non-GPS)

Reverse Hostname

ISP / ASN

Referrer

User Agent

🧾 Connection Details

Shows IP, GeoIP, reverse DNS, headers, and proxy-related values that can be obtained.

🛡️ WebRTC Leak Check

Checks whether real IP addresses behind VPN/proxy are exposed through WebRTC.

Checking...

How to Use

Open the page and verify source IP with timestamp.

Use summary cards for GeoIP estimate, reverse DNS, and ISP/ASN.

Review header and TLS fields to understand the network path.

Compare WebRTC candidates against primary IP to check leak risks.

FAQ

What IP address is shown here?

It’s primarily the server-seen source IP. It won’t match your device’s local IP and can differ under VPN/proxy/carrier NAT.

Is location output exact GPS location?

No. It is GeoIP estimation and may be approximate.

Is a different WebRTC IP a problem?

Not always, but under VPN/proxy it can indicate your path isn’t fully masked as expected. Use it as a signal for configuration checks.

Why is reverse DNS empty?

PTR may be unavailable or unpublished for that IP.

Does it work on mobile and corporate networks?

Yes, but shared egress IPs may be shown instead of device-specific addresses.

What does this tool send or upload?

It does not upload files or text. It fetches and displays what a server can observe at request time (IP and selected headers).

Why are two IPs visible with VPN?

“Server-seen IP” and “WebRTC candidate IPs” can differ. This can help spot potential VPN leaks and understand your network path.

Can reverse DNS vary between checks?

Yes. Routing and DNS configuration can cause variation. If it matters, check multiple times over time.

References

W3C: WebRTC 1.0
Normative browser specification for WebRTC behavior.
IETF RFC 5389 (STUN)
Core standard for NAT traversal and candidate gathering.
MDN: RTCPeerConnection
Practical reference for browser API usage.

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