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Knowledge base

Set a proxy for a profile

A profile without a proxy leaves through your own address. This is how to give it its own, where the password goes, and how to be sure the window really went out through it.

Store the address once

Paste the seller's lines into the proxy library. Fifty lines become fifty entries in one paste, and each is stored once.

The library reads the usual shapes, including login and password in the same line.

  1. 1

    Open the proxy library

    The Proxies tab in the left column.

  2. 2

    Paste the lines

    One address per line, in whatever shape the seller sent.

  3. 3

    Check what was read

    Lines that did not parse are listed rather than dropped.

Where the password goes

Not into the command line. A small bridge on loopback speaks to the browser without a password and to your proxy with one.

On disk the password is sealed by the operating system, in the same place it keeps your other passwords.

Check before you launch

The check runs the same road a launch runs: the same bridge for a proxy with a login, a real tunnel for an SSH entry.

What comes back is the exit address, the country and city, and the time to first response.

A check that passes means a launch will pass

That is only true because the check uses the launch path rather than a shortcut. A checker that takes a different road tells you about that road.

What could slip past

Open the profile and look at its start page: it shows the exit address the site would see.

WebRTC is the other way out, and it is closed by policy rather than by hope. The free leak test on this site reads your own candidate addresses without asking anyone else.

What this does not do

  • It does not sell you a proxy. The library stores what you bought elsewhere.
  • It does not keep a dead address alive. A proxy that stopped answering stops the launch rather than leaking around it.
  • It does not hide that a profile has no proxy at all. The list says so plainly.

Where this is decided

Each step above is one place in the code and one stand.

The password reaches the proxy through a loopback bridge, not the command line
apps/desktop/test/proxy-auth-bridge.js
The rule covers every scheme, so https does not slip past
apps/desktop/test/proxy-covers-https.js
The check uses the launch path, bridge and tunnel included
apps/desktop/test/proxy-check-uses-bridge.js
Proxy passwords on disk are sealed or honestly recorded as unsealed
apps/desktop/test/proxy-password-sealed.js

Questions

Can two profiles share one address?
They can, and it is usually a mistake. Two accounts leaving through one address is the pattern a platform reads as one person.
What happens if the proxy dies mid session?
The window stops loading rather than falling back to your own address. A silent fallback would be the worst of both.
Does the exit country change anything else?
Yes. It sets the profile clock and the language list, so the three agree with each other.

Try it on one profile

The free plan gives two profiles, with no time limit and no card.