What Is a VPN Leak?
what is a vpn leak: clear guide, checks, and next steps.
Quick answer
Use the guide, then verify the browser-visible VPN route: visible IP, DNS, WebRTC, IPv6, and browser/session signals. Save a Privacy Receipt only after comparing the before and after state.
Article to tool flow
VPN setup advice is hard to trust if the visible route is never checked.
A Privacy Receipt is a reduced, share-safe diagnostic summary. It removes raw IP addresses, exact city, full User-Agent, resolver IPs, and WebRTC candidates. It is not proof of anonymity, a VPN provider audit, or a security certificate.
Summary FAQ
What should I do after reading this article?
Run the linked VPN Leak Test first, then compare one related tool if the result does not match what you expected.
What should I save or share?
Use the Privacy Receipt when you need a safe summary. Avoid posting raw IPs, exact location, full User-Agent, resolver IPs, or WebRTC candidate strings publicly.
Does a clean-looking result mean everything is private?
No. MyIPScan checks visible browser/session signals in this context. It helps you find review items, but it does not certify a VPN, device, provider, account, or network.
What a VPN Leak Means
A VPN normally changes the network path used by some traffic from your device. In a browser test, the useful question is narrower: what can a website or browser feature see from this current session?
A VPN leak can mean that a visible IP, DNS, WebRTC, or IPv6 signal does not match the route you expected. That does not automatically explain why it happened. It means the signal deserves review in the current browser and network context.
The important distinction is between an observed signal and a conclusion. MyIPScan can show visible browser/session signals. It does not certify a VPN provider, inspect every app on the device, or test every server a provider operates.
What MyIPScan Checks
Start with the VPN Leak Test. It combines visible IP, DNS, WebRTC, IPv6, and browser/session signals into one review path.
Use What Is My IP to check the public IP and network context a normal website response can see. Then use the focused checks: DNS Leak Test, WebRTC Leak Test, and IPv6 Leak Test.
The methodology behind these checks is public at MyIPScan Methodology v1.1. It explains the exposure estimate, confidence level, risk flags, and Privacy Receipt safety rules.
How to Interpret the Result
Read the result as a set of visible signals, not a single pass/fail label. A DNS review flag means the resolver signal may not match expectations. A WebRTC review flag means the browser surfaced a candidate worth checking. IPv6 visibility may be normal on some networks and worth reviewing when VPN routing is expected.
Public IP visibility by itself is not automatically a VPN leak. Websites normally see a public IP to respond. The useful comparison is whether the visible IP matches the network route you intended to use after connecting the VPN.
For the procedure, read How to Run a VPN Leak Test Correctly. If the confusing part is that an IP is still visible at all, compare with VPN Connected But IP Still Visible.
What the Result Cannot Prove
A clean result does not prove anonymity, every security condition, or that every possible leak is absent. It only means MyIPScan did not observe the checked review signals in this browser session.
The test does not inspect every app, every device, every browser profile, every VPN protocol, every DNS path, or every server. Provider-level conclusions require controlled testing that is outside this article.
What to Do Next
Run the broad VPN test first, then use focused tools for any signal that needs context. If DNS needs review, use the DNS tool. If WebRTC shows a public candidate, check browser settings and extensions. If IPv6 is visible, compare before and after the VPN connection.
When the result is ready, a Privacy Receipt can summarize safe categories for saving or sharing. It removes raw sensitive values such as full IP address, exact city, full user-agent, raw DNS resolver IPs, raw WebRTC candidates, and raw fingerprint values. It is not a certificate or provider audit.
Next Step: Run the Related MyIPScan Checks
Check it on MyIPScan: run the primary diagnostic for the current browser session.
- Primary check: VPN Leak Test
- Related check: What Is My IP
- Related check: DNS Leak Test
- Related check: WebRTC Leak Test
- Related check: IPv6 Leak Test
- Methodology: read MyIPScan Methodology v1.1
FAQ
What is a VPN leak?
A VPN leak is a visible browser/session signal that may not match the VPN route you expected. It can involve IP, DNS, WebRTC, IPv6, or browser context.
Can MyIPScan prove that every VPN leak is absent?
No. MyIPScan is a best-effort browser/session diagnostic. A clean result does not prove every leak condition is absent.
How can I verify a VPN leak result?
Run the VPN Leak Test before and after connecting the VPN, then compare IP, DNS, WebRTC, and IPv6 signals.
Is a DNS leak the same as a WebRTC leak?
No. DNS concerns resolver or route signals. WebRTC concerns browser candidate behavior. Both can matter, but they are different signals.
What should I do if review is needed?
Use the focused related tool, check VPN and browser settings, change one variable at a time, and retest in the same browser session.