Opera is unusually precise about what its built-in VPN is. Its help pages describe a secure tunnel between your device and Opera's servers and add that this proxy is also used for WebRTC and DNS while browsing. Its product page says the feature keeps activity within the Opera browser private but does not apply to internet use outside Opera. Those two sentences decide almost everything a leak test can tell you here.
Opera describes its built-in VPN as a browser proxy that also covers WebRTC and DNS, and as not applying outside Opera, so this reading is about Opera and nothing else on the device.
Run the checks before and after switching the browser VPN on, in Opera itself. Testing from another browser measures your ordinary connection, because Opera documents the feature as not applying outside Opera.
The points below come from Opera's own help pages for the browser VPN and from the product page describing what it covers.
Opera calls it a proxy, and means it
Opera's help states that requests are sent through a secure tunnel established between your device and its VPN servers, and describes that mechanism as a proxy. The wording matters here more than usual, because it sets the boundary of what any check can observe: the browser, and the traffic the browser itself produces. Most of the settings people go looking for after a surprising result, kill switches and split tunnels and network adapters, do not exist in this product, because the thing they would protect is not in scope. What exists instead is a switch in the browser, and whether it was on.
WebRTC and DNS use the same proxy
Opera says the proxy is also used for WebRTC and DNS while browsing. That is a stronger statement than many browser features make, and it means the WebRTC and DNS lines below are genuinely testing something rather than reporting on a path the feature never claimed to cover.
Nothing outside Opera is covered
The product page says the feature keeps your activity within the Opera browser private but does not apply to your internet use outside of Opera. Run these checks in another browser or read a result from an application and you are measuring your ordinary connection, correctly, and learning nothing about the feature.
One part of Opera itself is excluded
Opera's own answers note that it does not currently proxy data from the built-in news feature on the start page. That is a small carve-out inside a product already scoped to the browser, and it is the kind of detail worth knowing before treating any single observation as complete.
The paid product is a different thing
Opera offers a separate subscription described as device-wide protection across applications and multiple devices. It is not the built-in browser feature this page is written about, so a reading here says nothing about it either way.
Between the readings
Record a kill-switch drop on Opera VPN
Opera's built-in VPN applies to this browser, so switching it off changes what this page can see and nothing outside it. That makes the change easy to force and easy to time.
This does not test every server, app, device, or connection.
This does not prove anonymity.
This does not prove every security condition.
A clean result does not prove every leak is absent.
How to compare before and after on Opera VPN
Open these checks in Opera itself, with the browser VPN switched off.
Note the address, the resolver and the WebRTC line.
Enable the browser VPN and rerun the same checks in the same Opera window.
Compare all three lines, since Opera documents the proxy as covering WebRTC and DNS too.
Safe Copy limits
Safe Copy exports use safe summary categories and remove raw IP, exact city, full user-agent, raw fingerprint data, raw resolver IPs and WebRTC candidates. It is not a certificate, provider audit, or proof of anonymity.
FAQ
Opera VPN leak test FAQ
Is Opera's built-in VPN a proxy?
Opera's help describes a secure tunnel between your device and its VPN servers and refers to that mechanism as a proxy, used for WebRTC and DNS while you are browsing.
Does it protect my other applications?
No. Opera states that the feature keeps activity within the Opera browser private and does not apply to internet use outside of Opera. Other applications use your ordinary connection.
Will a WebRTC check show anything useful here?
Yes, because Opera says the proxy is also used for WebRTC while browsing. That makes the WebRTC line a meaningful reading rather than a test of something the feature never covered.
Why should I run this in Opera rather than another browser?
Because the feature is scoped to Opera. A reading taken in a different browser describes your ordinary connection accurately and tells you nothing about whether the Opera feature is working.
Is anything inside Opera left out?
Opera notes that data from the built-in news feature on the start page is not currently proxied. It is a narrow exclusion, but worth knowing before a single observation is treated as the whole picture.
Is this page about the paid Opera product?
No. Opera sells a separate subscription described as device-wide across applications and devices. This page is written about the browser feature built into Opera itself.
Other provider self-tests
The same current-session checks, walked through for another provider. Listed alphabetically; this is not a ranking or a comparison.