Antidetect browsers and proxies: one stable IP per profile

An antidetect browser, or multi-profile browser if you prefer the less dramatic name, gives every profile its own browser. The one thing it cannot give a profile is its own internet address. That is the proxy’s job. This guide covers what a good antidetect browser proxy looks like, which of our lines fits, how to make the profile’s timezone and language agree with the IP, and how to check the result. The four setup guides at the end cover GoLogin, AdsPower, Multilogin and Dolphin Anty click by click.

What an antidetect browser actually does

Each profile is a separate browser environment: its own cookies, local storage, saved logins, extensions and history, plus its own set of values a website can read, such as screen size, fonts, graphics card, timezone and language. Log into a client’s ad account in profile A and profile B has no idea it happened.

People use this for ordinary, legitimate work:

• Agencies and freelancers who manage several clients’ accounts they are authorised to use, and want each client’s sessions kept apart.
• Ad verification and brand protection teams checking what an ad or a listing looks like to a visitor in another country. Our ad verification page covers that job.
• QA and localisation testers who need to see a site the way a user in Madrid or Toronto sees it, with the matching language and timezone. See geo-testing.
• Anyone keeping work and personal browsing apart, for privacy or plain tidiness.

What we will not help with

We do not support fake-account farms, getting round a ban a platform has placed on you, or anything else aimed at people rather than data. Using a proxy does not change a platform’s terms of service; they still apply to every account in every profile. Automated account creation is a grey area, so ask us before you start. The acceptable use policy has the full list, and we enforce it.

Why each profile needs its own stable IP

Short answer: give every profile one proxy IP that stays the same for as long as the profile exists. A static ISP IP is the default choice. Put two profiles on one IP and they share its luck: if a site rate-limits or blocks that address, both stop working. Put one profile on an IP that keeps changing and its logins stop sticking, because many sites tie a session to the address that signed in.

The second case catches people out. Our residential gateway, resi.proxymonkey.io:8000, gives a new exit address on every new connection. A browser opens new connections whenever it likes, so a profile on plain rotating residential changes address mid-session, and a login made on one IP gets used from another. Many sites respond by signing you out or asking you to verify again, and a strict login-security check can lock the account’s own owner out until they do. That is a lot of verification codes for one afternoon.

Sticky sessions, a setting in your dashboard, keep one residential exit for a while, and rotating vs sticky explains the trade. But a sticky session still ends, and the next one is a different address. For a profile you will open again next week, a static address is simpler.

Which proxy is best for GoLogin, AdsPower or Multilogin?

The tool does not change the answer; the job does. Here is how each line fits a long-lived browser profile.

• ISP proxies. A static address hosted in a data centre but registered to a consumer broadband provider, in the country you pick at checkout. It stays yours for the term, so the profile keeps one address for its whole life. ISP proxies are what we would put behind almost every profile.
• Datacenter proxies. The same static setup, on a hosting network. Some sites treat hosting ranges with suspicion or block them, others do not care. If yours do not, datacenter proxies work exactly the same way in the profile. Residential vs datacenter helps you tell which kind of site you have.
• Residential. Good for scraping, awkward here, for two reasons: the address moves, and you cannot pick the country. More on that next.

On static lines, choose a dedicated plan rather than shared. A shared IP has other customers on it, and if their traffic gets the address rate-limited, your profile is stuck behind it too.

Match the profile’s timezone, language and location to the IP

A profile reports a timezone, a list of preferred languages and, if a site asks, a location. Websites use those, alongside the IP’s location, to decide what to show. Get them out of step and the results are wrong: a profile on Berlin time with an address in Chicago sees a version of the site nobody in either city gets, which is no use for a localisation check or for verifying an ad shown in Germany.

All four tools can set these from the proxy automatically, usually with an option named something like “based on IP” or “auto”, and for timezone that is usually the default. Leave it on. Two cautions:

• You choose the country on ISP and datacenter, not on residential. Static IPs come in the country you pick at checkout; the locations page lists them. Our residential pool cannot be pinned to a country, so a rotating or sticky residential profile gets whatever country the exit happens to be in. That alone makes residential a poor fit for a profile that must stay in one place.
• Language is not always automatic. Some tools derive it from the IP, and Multilogin defaults to English whatever the proxy’s country. Check it once per profile.

Then WebRTC. It is the browser feature behind video calls, and a page can use it to learn your real IP, even when everything else goes through the proxy. Each tool has a WebRTC setting; the right choice is the one that reports the proxy’s IP or disables WebRTC, never the one that uses your real connection.

HTTP or SOCKS5 in an antidetect browser?

Either works. Unlike Chrome, which cannot send a username and password to a SOCKS5 proxy at all, all four tools accept SOCKS5 with a login. Their docs showed that when we checked in September 2026. The SOCKS5 vs HTTP guide explains the difference. For browsing, HTTP is the safe default: your HTTPS traffic is still encrypted end to end, and SOCKS5 adds nothing a web page needs.

Whichever you pick, use the host, port and credentials your dashboard lists for the order, and set the profile’s proxy type to match. A profile set to SOCKS5 talking to an HTTP port, or the other way round, fails the connection check with an unhelpful error.

Most of these tools accept a pasted line, in the profile or in their saved proxy list, and split it into fields for you. The shape all four understand is:

IP:PORT:USER:PASS

How to check a profile’s exit IP

Each tool has a built-in check that connects through the proxy and shows the IP and country it found. Use it, then check from inside the profile too, because the built-in check runs from the app, not the browser:

1. Start the profile and open https://httpbin.org/ip. The origin it prints should be the IP from your dashboard.
2. Run a WebRTC leak test page in the same profile. Your home IP must not appear anywhere on it.
3. Look at the timezone and language the profile reports, on a browser-information page such as BrowserLeaks, and confirm they match the IP’s country.

If the check fails with a 407, the proxy rejected the login: see 407 Proxy Authentication Required. If it times out, the app never reached the proxy, and the connection timeout page walks through why. A proxy that works in the tool but shows the wrong country is usually a geolocation database disagreeing with another; they are estimates, and not every checker agrees.

Setup guides for each antidetect browser

Each guide was checked against the vendor’s own help centre in September 2026 and uses the tool’s current labels:

• GoLogin proxy setup: adding a proxy from the profile list, bulk import on the Proxies page, and the “based on the external IP” toggles.
• AdsPower proxy setup: the Custom proxy fields, the saved proxy list, and WebRTC modes.
• Multilogin proxy setup: custom proxies in Multilogin X, proxy templates, and the language default to change.
• Dolphin Anty proxy setup: the New Proxy formats, the Proxy screen, and fixing “Error checking connection to proxy”.

Using a plain browser instead? Proxies in Chrome and Firefox covers a separate proxied profile without any extra software.