DNS Leaks Explained Without the Scare Graphic

The phone book is not the letter

DNS turns a name like mail.example.com into an address. On a cafe network, whoever answers that question learns which names you asked for. HTTPS still encrypts the page. A leak is a gossip problem, not a body-snatcher problem.

Scare graphics make leaks look like a stolen laptop. The honest version is a resolver: IPv6, a family 'filter' app, a corporate profile, or an OS that bypasses the VPN's DNS. Fix the resolver. Do not buy a new brand because a random website turned red.

From the record

Metadata is not nothing. It is also not your password. Keep those two sentences in the same paragraph.

GUIDEORA rule for DNS panic

How leaks actually happen

Typical paths: the OS uses a configured DNS that is not the tunnel; IPv6 is on and the VPN only wrapped IPv4; a 'smart' leak-test page is wrong. Use the vendor's DNS setting. Turn IPv6 off on travel if you do not need it and do not understand it.

• Enable the VPN app's DNS / prevent-leak toggle if it has one.
• Treat public leak-test sites as hints, not certificates.
• Watch for IPv6 bypass on laptops that 'just work' at home.
• A leak does not mean you should type passwords into a portal.

Proton VPN and DNS

Proton currently documents its own DNS inside the VPN path as part of the no-logs privacy story. That is the product this guide points at for people who want the resolver to follow the tunnel. Confirm live docs. Other serious VPNs do this too.

If a leak test still flags you, check split tunneling and IPv6 before you change brands in a panic.

Calm down, then check the resolver

A red leak page is a clue to check DNS and IPv6, not a crime scene. Proton VPN is the privacy-first example this site uses. GUIDEORA did not run your test.