Undetectable.io on a USA 5G Proxy Line

Undetectable.io is an antidetect browser: it runs many separate browser profiles, each with its own fingerprint, cookies and proxy, so that each one appears to a website as a different device. A USA 5G Proxies line supplies the network identity for a profile, and the 5G tier supplies the speed to run several profiles at once without them starving each other. This guide shows exactly where the line's details go, which profile settings must agree with the line's metro, how to verify the carrier address before the profile touches anything, and how to confirm you are getting 5G throughput inside the profile.

What you need from the dashboard

Sign in at fast.usa5gproxies.com and open the line. The card shows the host, an HTTP port, a SOCKS5 port, a username and a password, and the rotation link. Undetectable.io accepts HTTP and SOCKS5; use SOCKS5, which also carries UDP and keeps DNS lookups inside the line. Keep the rotation link out of the profile; it is only needed when you want a new address.

Adding the line to the proxy manager

Undetectable.io lets you store a proxy once in its manager and attach it to any number of profiles. Store the line there rather than typing it into each profile: when the plan renews or the line moves to another metro, you update one entry and every profile follows.

1. Open Undetectable.io, go to the proxy manager and choose Add proxy.
2. Select SOCKS5, then paste the host, SOCKS5 port, username and password from the line's card, or the single line socks5://user:pass@host:port.
3. Name the entry after the line's metro and carrier, for example Houston T-Mobile 5G, so the pairing is obvious later.
4. Press Check. The result should show United States, the carrier, and a city in the line's state.
5. Save the entry.

Creating the profile

A profile's fingerprint is independent of the proxy, so pick the operating system and browser the account should appear to use; for most US consumer accounts a Windows or Android fingerprint is ordinary. Then attach the saved proxy and set the three signals that must agree with the line: time zone, language and geolocation.

1. Choose New Profile, give it a name that includes the metro, and pick the fingerprint OS.
2. In the Proxy section select the saved USA 5G Proxies entry.
3. Set Time zone to follow the proxy, or set it by hand to the metro: Central for Houston and Chicago, Eastern for New York, Boston, Miami and North Carolina, Mountain for Phoenix, Pacific for Los Angeles.
4. Set Language to en-US and Geolocation to follow the proxy.
5. Save and launch.

Checks before you use the profile

Open an IP lookup page inside the profile. The organisation should be the carrier and the connection type cellular or mobile. Open a WebRTC leak test; the only address listed should be the carrier address or none. Compare the profile's clock with the metro's clock. Then run a download test inside the profile, remembering that your own path to the US is part of what you measure.

If the profile shows a 5G+ eligible line, the add-on gives the profile more download headroom; it does not change the fingerprint or the address.

Running several profiles on one 5G line

Because the line is yours alone, several profiles can share it. Each sees the same public address, so use one line per identity that must look unrelated, and share a line only among profiles that belong together. A 5G line comfortably carries two or three active profiles; with 5G+ more. Rotate with the profiles closed, and after a free metro move update the saved proxy once so every profile follows.

One more habit worth keeping: write the line's metro into the profile name and into the saved proxy's name. When a client asks six weeks later which city a set of screenshots came from, the answer is in the profile list rather than in someone's memory, and a profile that is accidentally launched on the wrong line is obvious at a glance.

If the profile feels slow

Check hardware acceleration in the profile's settings first, since video suffers most without it. Then look at how many profiles are open on the line at once, and whether any of them is playing video in the background. If it still feels slow, try again outside the busy evening hours in the line's metro, when towers are less crowded. Close what you are not using.

Frequently asked