How to Check Proxies for WebRTC Leaks and Protect Your Real IP: A Guide for Arbitrageurs

WebRTC is a technology that allows browsers to exchange data directly, bypassing the proxy server. The problem is that even if you are using a proxy, WebRTC can reveal your actual IP address. For arbitrage specialists, SMM professionals, and anyone working with multi-accounting on Facebook Ads, Instagram, or TikTok, this is a critical threat — a single leak can lead to the banning of all associated accounts.

In this article, we will discuss what WebRTC leaks are, how to check for them in 30 seconds, and how to properly configure protection in anti-detect browsers like Dolphin Anty, AdsPower, and other popular tools.

What is WebRTC and Why is it Dangerous for Multi-Accounting

WebRTC (Web Real-Time Communication) is a technology built into modern browsers (Chrome, Firefox, Edge, Opera) that allows websites to establish direct connections between users for video calls, audio communication, and file sharing. It sounds useful, but there is a critical problem for those working with proxies.

WebRTC creates a direct peer-to-peer connection, bypassing the proxy server. To establish this connection, the browser collects information about all available network interfaces — including your actual local IP address and the public IP you are trying to hide behind the proxy. This data is sent through special STUN servers, and any website can access it via JavaScript.

For SMM specialists managing dozens of client accounts on Instagram or TikTok, a WebRTC leak can mean losing all accounts at once. Platforms see that requests from different "devices" (profiles in the anti-detect browser) are coming from one real IP address — a clear sign of multi-accounting.

How IP Leaks Occur Through WebRTC

Let's break down the technical side of the process to understand what we are dealing with. When you visit a website through a browser with WebRTC enabled, the following occurs:

1. The browser collects ICE candidates — a list of all possible paths for establishing a connection. This list includes: your local IP (e.g., 192.168.1.100), the proxy server's IP, and your actual public IP.
2. Data is sent to a STUN server — a public server from Google (stun.l.google.com) or another provider. The STUN server returns information about your public IP address.
3. JavaScript on the site accesses this data — through the RTCPeerConnection API, the site can read all collected IP addresses, including your real one.
4. Data is transmitted to the platform — Facebook, Google, and other services store this information and use it to link accounts.

An important point: this happens automatically, without your involvement. You do not need to make a video call or use WebRTC features — simply opening a page in the browser is enough. Many advertising platforms embed WebRTC checks directly into the authorization page code.

How to Check Proxies for WebRTC Leaks: 3 Methods

Before launching advertising campaigns or working with client accounts, make sure to check for protection against WebRTC leaks. Here are three proven methods, from the simplest to the advanced.

Method 1: BrowserLeaks.com — Quick Check in 30 Seconds

This is the most popular and simplest way to check. BrowserLeaks is a specialized service for testing browser anonymity.

Step-by-step instructions:

1. Open a profile in an anti-detect browser (Dolphin Anty, AdsPower, GoLogin, or another) with the configured proxy.
2. Go to the site browserleaks.com/webrtc
3. Wait for the test to complete (5-10 seconds).
4. Check the "Your IP addresses" section — it should display ONLY the IP of your proxy server.

What to Look for in the Results:

• Public IP Address — should match the IP of your proxy. If your real IP is shown here — there is a leak.
• Local IP Address — local addresses like 192.168.x.x or 10.x.x.x may appear here. This is normal; such addresses do not reveal your identity.
• IPv6 Address — if you have IPv6 enabled, it may expose your real address. It's better to disable IPv6 in the profile settings.

Method 2: IPLeak.net — Additional Check

IPLeak.net is another popular service for checking leaks. It shows not only WebRTC but also other possible sources of IP leaks: DNS, torrents, Flash.

How to Use:

1. Open a profile with a proxy in the anti-detect browser.
2. Go to ipleak.net
3. Look at the "Your IP addresses" section at the top of the page.
4. Scroll down to the "WebRTC Detection" section — all IPs visible to WebRTC will be shown here.

The advantage of IPLeak is that it shows more details, including the provider (ISP) for each detected IP. This helps to understand which IP is leaking — the proxy or your real one.

Method 3: Whoer.net — Comprehensive Anonymity Check

Whoer.net is a service that gives an overall score of your browser's anonymity on a scale from 0 to 100%. It checks not only WebRTC but also other parameters: User-Agent, browser language, timezone, screen resolution, WebGL, and much more.

How to Check:

1. Visit whoer.net through a profile with a proxy.
2. Wait for the automatic check to complete.
3. Pay attention to the "WebRTC" line — there should be a green checkmark and the text "Disabled" or the proxy IP.
4. Check the overall anonymity rating — for working with advertising platforms, 80%+ is desirable.

Whoer is useful as it shows other possible issues with profile settings. For example, if the timezone does not match the country of the proxy, or the browser language reveals your real location — Facebook will notice this.

Setting Up Protection Against WebRTC in Anti-Detect Browsers

All modern anti-detect browsers have built-in mechanisms to protect against WebRTC leaks. But it is important to understand that there are several protection modes, and not all of them are equally effective for different tasks.

Three Protection Modes Against WebRTC: Which to Choose

Recommendations for Different Tasks:

• Facebook Ads, TikTok Ads Arbitrage: "Disabled" or "Altered" mode. If using mobile proxies, choose "Altered" — it provides maximum naturalness.
• Instagram, TikTok SMM (mass management): "Altered" mode. Completely disabling WebRTC may look suspicious to social networks.
• E-commerce (scraping Wildberries, Ozon): "Disabled" mode — video calls are not needed, maximum protection is important.
• Working with Clients via Zoom/Meet: "Altered" mode — video calls will work, but through the proxy IP.

Protection Against WebRTC in Dolphin Anty: Step-by-Step Guide

Dolphin Anty is one of the most popular anti-detect browsers among arbitrage specialists. Let's go through the detailed setup of WebRTC protection for a new profile.

Creating a Profile with WebRTC Protection

1. Open Dolphin Anty and click "Create profile"
   In the main window of the program, click the blue "Create profile" button in the upper right corner.
2. Set Basic Profile Parameters
   Specify the profile name (e.g., "FB Ads USA 1"), choose the operating system (Windows/macOS), and screen resolution. These parameters should match the country of your proxy.
3. Add Proxy Server
   Go to the "Proxy" tab. Select the type of proxy (HTTP/SOCKS5), enter the details: IP, port, username, and password. Click "Check proxy" to verify the connection. Dolphin will show the country, city, and provider of the proxy.
4. Configure WebRTC (critically important step!)
   Go to the "Advanced settings" tab → "WebRTC" section. Here you will see three options:
   • Disabled — complete disabling of WebRTC
   • Altered — IP substitution to proxy
   • Real — no protection (do not use!)
   For Facebook Ads, choose "Altered" — this is the optimal balance between protection and naturalness.
5. Additional Setup: Disable IPv6
   In the same "Advanced settings" section, find the "IPv6" option and set it to "Disabled". IPv6 can expose your real address even with the correct WebRTC settings.
6. Save the Profile and Start
   Click "Create profile". Dolphin will create the profile and automatically apply all settings. Start the profile by clicking the "Start" button.
7. Check Protection (mandatory!)
   Immediately after starting the profile, open browserleaks.com/webrtc and ensure that only the proxy IP is displayed. If you see your real IP — return to the settings and select "Disabled" mode.

Bulk Change WebRTC Settings for Existing Profiles

If you already have dozens of profiles and discovered a WebRTC issue, there is no need to edit each one manually. Dolphin Anty supports bulk editing:

1. In the main Dolphin window, select the desired profiles (hold Ctrl/Cmd and click on the profiles).
2. Right-click → "Mass edit profiles".
3. In the opened window, go to the "Advanced settings" → "WebRTC" section.
4. Select the desired mode (Altered or Disabled) and click "Save changes".

Dolphin will apply the changes to all selected profiles in a few seconds. After that, be sure to check 2-3 profiles on BrowserLeaks to ensure that the settings were applied correctly.

Configuring WebRTC in AdsPower and GoLogin

AdsPower: Protection Against WebRTC Leaks

AdsPower is a popular alternative to Dolphin, especially among those working with Chinese platforms (TikTok Ads, Taobao). The WebRTC setup here is slightly different:

1. Create a New Profile
   Click "New Profile" in the main AdsPower window. Select the platform (Facebook, TikTok, Google) — the program will automatically select optimal fingerprint settings.
2. Configure Proxy
   In the "Proxy settings" section, enter your proxy server details. AdsPower supports HTTP, HTTPS, SOCKS5. Click "Check Proxy" to verify.
3. Configure WebRTC
   Go to the "Advanced settings" → "WebRTC" section. AdsPower has four modes:
   • Forward (recommended) — similar to "Altered" mode in Dolphin. Shows only the proxy IP.
   • Disabled — complete disabling of WebRTC.
   • Local — shows local IP (192.168.x.x). Safe, but less natural.
   • Real — do not use for multi-accounting!
   For working with Facebook Ads and TikTok Ads, choose "Forward" mode.
4. Additionally: Set Geolocation
   AdsPower allows you to spoof the browser's geolocation (Geolocation API). In the "Geolocation" section, select "Proxy location" — the browser will transmit the coordinates of your proxy's city. This is important for local advertising.

GoLogin: WebRTC Configuration

GoLogin is one of the easiest anti-detect browsers to use. The WebRTC setup here is maximally simplified:

1. Create a Profile and Add Proxy
   Click "Create profile", enter the name and proxy details in the corresponding section.
2. Configure WebRTC in the "Advanced" Section
   GoLogin offers three modes:
   • Substitute (recommended) — substitution with the proxy IP.
   • Block — complete disabling.
   • Real — without protection.
   Choose "Substitute" for most tasks.
3. Enable "DNS over HTTPS"
   In the profile settings, find the "DNS over HTTPS" option and enable it. This will prevent DNS query leaks, which can also reveal your real location.

An important advantage of GoLogin is the automatic WebRTC check when starting the profile. If a leak is detected, the program will show a warning and suggest changing the settings.

Common Mistakes When Protecting Against WebRTC Leaks

Even experienced arbitrage specialists and SMM professionals sometimes make mistakes in configuring protection against WebRTC. Here are the most common problems and their solutions.

Error 1: IPv6 Not Disabled

Even if you have correctly configured WebRTC for IPv4, the IPv6 protocol may operate in parallel and expose your real address. Many proxy providers do not support IPv6, so requests over this protocol go directly, bypassing the proxy.

Solution: In the settings of the anti-detect browser profile, find the "IPv6" option and set it to "Disabled" or "Block". Check at browserleaks.com/ipv6 — your real IPv6 address should not be there.

Error 2: Using Free or Public Proxies

Free proxies are often misconfigured and do not block WebRTC requests. Additionally, such proxies are used by hundreds of other people — Facebook and other platforms already know them and ban them automatically.

Solution: Use quality proxies from trusted providers. For Facebook Ads and Instagram, residential proxies are the best choice — they have IPs of real home users, making them virtually indistinguishable from regular traffic.

Error 3: Checking Only Once When Creating the Profile

WebRTC settings can be disrupted after updating the anti-detect browser, changing proxies, or installing extensions. Many check the protection only when creating the profile and then forget about it.

Solution: Regularly check WebRTC — at least once a week for active profiles. Bookmark browserleaks.com/webrtc and open this page in each profile before starting work. It will take 10 seconds but can save you from a ban.

Error 4: Installing Extensions That Enable WebRTC

Some browser extensions (especially for video calls, VPNs, or "internet accelerators") may forcibly enable WebRTC, ignoring the settings of the anti-detect browser.

Solution: Only install necessary extensions. After installing any new extension, be sure to check WebRTC for leaks. If you find a problem — remove the extension and find an alternative.

Error 5: Simultaneous Use of the Profile on Different Devices

If you synchronize profiles through the cloud (this feature is available in Dolphin Anty and AdsPower) and open one profile on both a computer and a laptop simultaneously, WebRTC may reveal both real IP addresses.

Solution: Never open one profile on multiple devices at the same time. If you are working in a team, use the "Transfer profile" function to pass the profile to a colleague rather than accessing it simultaneously.

Checklist: How to Regularly Check Protection Against WebRTC

Create a simple system for regular checks to avoid missing a leak. Here is a ready-made checklist that you can print and hang at your workplace:

Create an Excel table to track checks. Columns: "Date", "Profile", "Check Service", "Result", "Actions". This will help identify patterns — for example, if a specific proxy provider regularly causes leaks.

Automating WebRTC Checks (for Advanced Users)

If you have more than 50 profiles, manually checking each one will take too much time. Some anti-detect browsers support automation via API:

• Dolphin Anty: Has an API for launching profiles and retrieving their parameters. You can write a script that launches each profile, opens the check page, and saves the result.
• AdsPower: Supports automation via Selenium. You can create a script that checks all profiles and sends a report to Telegram.
• GoLogin: Has a built-in "Profile Health Check" function that automatically checks basic parameters, including WebRTC.

If you are not a programmer, you can hire a freelancer on Upwork or Kwork to create such a script. The cost is from $50-100, but it will save you dozens of hours in the future.

Conclusion

WebRTC leaks are one of the main reasons for bans when multi-accounting on Facebook Ads, Instagram, TikTok, and other platforms. Even quality proxies will not protect you if WebRTC reveals your real IP address. But now you know how to check protection in 30 seconds and how to properly configure an anti-detect browser.

Key takeaways from the article:

• WebRTC bypasses proxies and can reveal your real IP even with the correct browser settings.
• Regularly check protection on browserleaks.com/webrtc — it will take 30 seconds but can save you from chain bans.
• In anti-detect browsers, use "Altered" (Forward, Substitute) mode for most tasks or "Disabled" for maximum protection.
• Always disable IPv6 in profile settings — this is a common cause of leaks.
• Check protection after each browser update, proxy change, or extension installation.

If you plan to work seriously with traffic arbitrage, SMM promotion, or e-commerce, protection against WebRTC leaks should become your daily habit. Add checking to your work checklist and do it automatically before starting work with each profile.

For reliable protection against bans, we recommend using quality proxies with the correct WebRTC settings. Residential proxies provide the highest level of anonymity and the lowest risk of detection by platforms — they use IPs of real home users, making your traffic indistinguishable from regular traffic.