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Security Tool • Updated for 2026

WebRTC Leak Checker

Check whether your browser’s WebRTC features can reveal IP-related info (local/private addresses, IPv6 candidates) that may undermine privacy in some setups.
Purpose: verify Time: < 1 minute Best for: privacy-sensitive browsing
Run the checker ↓ Methodology Affiliate Disclosure

WebRTC (Web Real-Time Communication) helps browsers do voice/video calls and peer-to-peer connections. In some configurations, it can also expose network “candidates” (addresses your browser considers usable). This is usually harmless for everyday browsing — but it can matter if you rely on a VPN for location privacy or you’re doing privacy-sensitive work.

What this tool checks (and what it doesn’t)

This checker looks for
  • WebRTC candidate IPs (best-effort) revealed via ICE gathering.
  • Local/private IP exposure (e.g., 192.168.x.x / 10.x.x.x).
  • IPv6 candidates that may affect privacy in some networks.
This checker does not prove
  • Your real public IP “leak” is happening to every site — exposure depends on site behavior + browser policy.
  • VPN “safety” overall (this is one signal among many).
  • Tracking prevention (cookies/fingerprinting/logins still identify you).

Reality anchor: Passing this test does not guarantee anonymity. It only checks one browser-level exposure path.

Run the WebRTC leak checker

Not run yet

Click “Run check” to gather WebRTC ICE candidates. If your VPN is ON, keep it connected while testing.

WebRTC support
—
Some privacy modes block WebRTC probing (that can be normal).
Exposure level (advisor view)
—
We classify results conservatively.
Local/private IPs
—
Private IPs are common; impact depends on threat model.
IPv6 candidates
—
IPv6 can create mismatch issues on some VPN setups.
Detected ICE candidates (best-effort)
— Run the check to populate candidates —

Related: VPN Leak Test (IP, DNS, WebRTC) • Check If Your VPN Is Working

How to read your results

✅ If WebRTC is blocked or shows no usable candidates

Some browsers and privacy modes prevent WebRTC candidate enumeration, or only surface minimal information. That can reduce exposure — but it can also break calls/meetings in some apps. If you never use WebRTC calling, that trade-off is often fine.

🟩 If you only see private/local IPs (10.x / 192.168.x / 172.16–31.x)

This is the most common outcome. Private IPs are not your public internet identity, and many sites can’t do much with them. Still, for privacy-sensitive users, any extra identity signal can matter, so it’s worth tightening.

🟨 If you see IPv6 candidates

IPv6 isn’t automatically “bad,” but it can create mismatches if your VPN handles IPv4 well while IPv6 routes differently. If you’ve seen leaks or inconsistent routing, IPv6 is a common place to check.

⚠️ If you see lots of candidates

A long list can suggest broader visibility into your network interfaces and routes. It doesn’t guarantee a site can deanonymize you — but it’s a reason to reduce exposure if you care about privacy posture.

Common false alarms

  1. “It shows my 192.168.x.x address — I’m leaking!” That’s a private LAN address. For most people it’s low impact, but high-risk users may still want to reduce exposure.
  2. “It’s blank — my VPN is broken.” Not necessarily. Privacy mode, browser policy, or extensions can block enumeration.
  3. “IPv6 showed up — I’m exposed.” IPv6 presence is a signal, not a verdict. The question is whether your VPN routes IPv6 safely and consistently.

What this means for your setup (fixes)

  • If you want maximum privacy posture: consider limiting WebRTC IP handling in your browser (steps below).
  • If you use a VPN: ensure your VPN has clear WebRTC/DNS leak protections and test after updates.
  • If you need WebRTC calling: choose the least disruptive fix first (browser policy changes rather than full disable).

Browser-level mitigations (quick guide)

  • Firefox: search settings for WebRTC IP handling and restrict exposure (often easiest to harden).
  • Chromium browsers (Chrome/Edge/Brave): consider privacy settings or a reputable WebRTC control extension if you need finer control.
  • Safari: WebRTC behavior is more locked down; focus on VPN consistency + network privacy settings.

Guides: How to test your VPN (IP, DNS, WebRTC) • Split tunneling explained

Recommended next steps

Limitations of this checker

  • Best-effort only: browsers increasingly restrict WebRTC enumeration; results vary by version and privacy settings.
  • Site behavior matters: a “candidate exists” doesn’t mean every website can exploit it.
  • VPN + browser interactions vary: split tunneling, IPv6, and extensions can change outcomes.

FAQ

  • Is WebRTC itself unsafe? No — it enables real-time calling. The concern is what it can reveal about network candidates in some setups.
  • Does WebRTC leak my “real IP”? Sometimes it can reveal IP-related info. Whether it meaningfully exposes your public identity depends on browser policy and site behavior.
  • Should I disable WebRTC? Only if you don’t need browser calling. Otherwise, prefer limiting IP exposure rather than breaking functionality.
  • Do I need to fix this if I’m not high-risk? Often no. Many everyday users can leave it alone. If you rely on a VPN for location privacy, it’s worth tightening.
  • Does this make me anonymous if it “passes”? No — accounts, cookies, fingerprinting, and telemetry still identify you.

Trust & disclosure

This tool is educational and diagnostic. Results vary by browser, OS, extensions, network, and VPN configuration. Learn more: Methodology • Affiliate disclosure.