How to Avoid Chain Bans in Multiaccounting: Protecting 50+ Accounts in 2025

A chain ban is a nightmare for any arbitrageur or SMM specialist. You lose not just one account, but all at once: 10, 20, 50 profiles can be banned in a matter of minutes. Facebook, Instagram, TikTok, and other platforms have learned to find connections between accounts and ban them in groups. One misconfigured proxy or shared fingerprint, and your entire account farm turns to ash.

In this article, we will analyze the mechanism of chain bans, how platforms detect connections between accounts, and what to do to protect your business. All recommendations are based on real experience working with farms of 50 to 500 accounts on Facebook Ads, Instagram, TikTok, and other platforms.

What is a Chain Ban and How Does it Work

A chain ban (also known as a mass ban) occurs when a platform detects a connection between multiple accounts and applies sanctions to the entire group simultaneously. This is not a random coincidence — it is the result of machine learning algorithms analyzing hundreds of parameters and identifying patterns indicating that the accounts are managed by one person or team.

A classic scenario of a chain ban looks like this: you are working with 30 Facebook Ads accounts, all set up through an anti-detect browser, using different proxies. One account gets banned for violating advertising rules (for example, for aggressive creative). Within 2-3 hours, another 5 accounts get banned. Within a day — all 30. Facebook detected the connection and applied sanctions to the group.

The mechanism of a chain ban operates on the principle of a relationship graph. The platform builds a graph where the nodes are accounts, and the edges are common elements: IP addresses, browser fingerprints, payment cards, phone numbers, cookies, and patterns of activity over time. When one account gets banned, the algorithm checks all connected nodes and applies sanctions to the suspicious ones.

Types of Chain Bans by Platforms

Facebook and Instagram (Meta) are the most aggressive in applying chain bans. Their algorithms analyze not only technical parameters but also behavioral patterns: time spent on accounts, ad creation styles, images and texts used. TikTok focuses on payment data and device ID. Google Ads pays more attention to billing information and traffic quality.

How Platforms Detect Connections Between Accounts

Modern anti-fraud systems use multi-level checks to detect multiaccounting. Understanding these mechanisms is critically important for building effective protection. Let’s discuss the main detection methods used by Facebook, Instagram, TikTok, and other platforms.

1. IP Addresses and Network Fingerprints

The most obvious, yet equally important factor. Platforms track not only the IP address itself but also the subnet, ASN (autonomous system), and provider. If 10 accounts log in from the same /24 subnet (for example, 192.168.1.1 - 192.168.1.255), the system will record this.

Data centers with known ranges are especially dangerous. Facebook and Instagram maintain blacklists of IP addresses from popular VPS providers (DigitalOcean, AWS, Hetzner). Accounts registered or actively working from such IPs receive a higher risk score.

2. Browser Fingerprint

A fingerprint is a unique identifier composed of dozens of browser and device parameters. Even if you use different IP addresses, the same fingerprint will instantly reveal a connection between accounts.

Modern fingerprinting systems collect over 100 parameters: browser version, installed fonts, screen resolution, time zone, system language, list of plugins, Canvas and WebGL parameters, audio context characteristics, battery behavior (Battery API), touchscreen parameters, and much more.

3. Cookies and Local Storage

Cookies, LocalStorage, SessionStorage, IndexedDB — all these mechanisms are used to track users. Facebook sets dozens of cookies, including unique identifiers that are retained even after logging out.

A critical mistake is using one browser profile for multiple accounts. Even if you clear cookies between sessions, traces remain in IndexedDB, Service Workers, and HTTP cache. Platforms use evercookies — technologies that recover identifiers from multiple sources.

4. Behavioral Patterns

Machine learning analyzes how you interact with accounts. Activity time, typing speed, mouse movements, click patterns — all create a unique behavioral fingerprint.

If you are working with 20 Facebook Ads accounts from 9:00 AM to 6:00 PM Moscow time, creating ads at the same time, using similar creatives and texts — the algorithm will notice. It is especially suspicious when all accounts perform actions in the same sequence with minimal intervals.

5. Connections Through Data

Payment cards, phone numbers, email addresses, physical addresses — all create direct connections between accounts. Using one card to fund 10 Facebook advertising accounts is a guaranteed path to a chain ban.

Facebook and TikTok pay special attention to billing information. Even if you use different cards, if they are issued by the same bank in one name — that’s a red flag. Google Ads can ban all accounts linked to one Business Profile or payment method.

Proper Isolation Through Proxies: Types and Strategies

Proxies are the first line of defense against chain bans. But simply buying proxies is not enough. A proper strategy is needed: selecting the type of proxy, binding to accounts, rotation, geographical matching. Incorrect proxy configuration is the cause of 60% of all chain bans in arbitrage and SMM.

Types of Proxies for Multiaccounting: Comparison

Data Centers are the cheapest option, but for working with Facebook Ads, Instagram, or TikTok, they are practically unusable. Platforms instantly identify IPs from data centers and apply enhanced checks. Use them only for scraping prices on marketplaces or bulk data collection where authorization is not required.

Residential Proxies are the optimal choice for Facebook Ads, Google Ads, and TikTok Ads accounts. These are real IP addresses of home users that platforms cannot distinguish from regular traffic. It is critically important: one residential proxy = one account. Never use one IP for multiple profiles.

Mobile Proxies provide maximum protection for Instagram, TikTok, and other mobile platforms. Mobile IPs have the highest trust score because millions of real users access them from their phones. A feature: mobile IPs are often dynamic and change upon reconnection, providing additional protection.

Proxy Binding Strategy

The golden rule of multiaccounting: one account = one unique IP address for the entire lifetime. This is not a recommendation, but a mandatory requirement for protection against chain bans.

For a farm of 50 Facebook Ads accounts, you need at least 50 unique residential proxies plus 10-15 spare ones. Do not try to save money by using one proxy for 2-3 accounts with time rotation — Facebook's algorithms can detect this.

Critical Mistakes When Working with Proxies

Checking Proxy Quality Before Use

Before binding a proxy to an account, be sure to check its quality. Even paid residential proxies can be burned or blacklisted.

Protection Through Fingerprint and Anti-Detect Browsers

Proxies solve the IP address problem, but that’s only 30% of the protection. The remaining 70% is a unique fingerprint for each account. A regular browser like Chrome or Firefox leaves the same digital fingerprint regardless of which proxy you are using. For full isolation, anti-detect browsers are needed.

What is an Anti-Detect Browser and How Does it Work

An anti-detect browser is a specialized application based on Chromium that allows you to create multiple isolated browser profiles with unique fingerprints. Each profile has its own set of parameters: Canvas, WebGL, User-Agent, fonts, screen resolution, time zone, system language, and dozens of other characteristics.

The main anti-detect browsers for arbitrage and SMM are: Dolphin Anty (the most popular in the CIS), AdsPower (strong in automation), Multilogin (premium segment), GoLogin (budget option), Octo Browser (growing popularity).

Key Fingerprint Parameters for Protection Against Chain Bans

Anti-detect browsers can spoof dozens of parameters, but not all are equally important. Here are the critical parameters that must be unique for each profile:

Most anti-detect browsers offer automatic fingerprint generation. This is convenient but risky. Automation can create unrealistic combinations (e.g., Windows XP with the latest version of Chrome) or use the same templates for different profiles. For critical Facebook Ads accounts, it is better to configure fingerprints manually.

Fingerprint Profile Creation Strategy

The correct strategy is to create fingerprints based on real devices. If you are working with Facebook Ads from Russia, your fingerprint should resemble a typical Russian Windows 10 user with Chrome.

Setting Up Dolphin Anty and AdsPower for Chain Ban Protection

Theory is important, but the main thing is practical setup. Let’s go step by step on how to configure the two most popular anti-detect browsers for maximum protection against chain bans. Dolphin Anty is for professionals with large farms, while AdsPower is for beginners and medium volumes.

Setting Up a Profile in Dolphin Anty: Step-by-Step Guide

Dolphin Anty is the industry standard for arbitrageurs in the CIS. The interface is in Russian, with a powerful profile management system and built-in automation. Let’s look at setting up a profile for working with Facebook Ads.

After setup, be sure to check the fingerprint. Dolphin Anty has a built-in check — open the profile and go to browserleaks.com or pixelscan.net. Check that all parameters are unique and realistic, and that there are no leaks of the real IP through WebRTC.

Setting Up a Profile in AdsPower

AdsPower is easier to learn and cheaper, making it popular among beginners. The setup process is similar to Dolphin, but with some differences in the interface.

Organizing and Managing Multiple Profiles

When you have...