You are working through a proxy — and suddenly the banking website stops opening, the app throws an error, and the online payment fails. Does this sound familiar? It’s not a coincidence: banks intentionally block connections through proxy servers. But this is solvable — and most often in just a few minutes.
In this article, we will explore why banks cut proxy traffic, what specific errors occur, and what exactly needs to be done to get the banking app working again — without losing anonymity for other tasks.
Why the Bank Blocks Connections through Proxy
Banks are among the most paranoid participants on the internet in terms of security, and this is justified. Every day, their systems record thousands of attempts at fraudulent access to other people's accounts, and proxy servers are one of the main tools used by criminals. That’s why banking anti-fraud systems are set up to automatically block suspicious connections.
Here are the specific reasons why the bank cuts your traffic:
- IP from proxy server databases. There are public and commercial databases of IP addresses belonging to data centers, VPN providers, and proxy services. Banks subscribe to such databases and automatically block traffic from these addresses. If your proxy uses a data center IP — the chance of being on such a list is very high.
- Geolocation does not match account history. If you usually log into the bank from Moscow, but today your IP shows the Netherlands or the USA — the security system raises a red flag and blocks the session.
- Discrepancy between IP and other parameters. Modern anti-fraud systems look not only at the IP. They analyze the browser's time zone, system language, screen resolution, and installed fonts. If the IP shows Germany while the browser is set to Russian with a Moscow time zone — this is a clear contradiction.
- IP address reputation. Proxy servers, especially cheap or free ones, are used by thousands of people. If even one of them commits fraudulent actions — the IP gets blacklisted, and all subsequent users of that address get blocked.
- Proxy protocol is visible in request headers. Some proxy servers add special tags to HTTP headers (for example,
X-Forwarded-For), which directly indicate the use of a proxy. The bank sees this and blocks the connection.
It is important to understand: the bank does not know what exactly you are doing. It simply sees a pattern that is statistically associated with fraud and reacts automatically. Your task is to either exclude banking traffic from the proxy route or use a type of proxy that does not raise suspicions.
What Errors Occur and What They Mean
Before treating, you need to diagnose correctly. Banking blocks through proxies manifest in different ways, and each type of error indicates its own cause.
| Symptom / Error | Likely Cause | What to Do |
|---|---|---|
| Page does not load, timeout | IP blocked at the bank's firewall level | Add the bank to the proxy exceptions |
| Error 403 Forbidden | The bank's server sees the proxy and denies access | Change the type of proxy or disable it for the bank |
| Redirect to "Suspicious Activity" page | Anti-fraud triggered by geolocation or IP reputation | Use a residential proxy from the same country |
| Requires re-authorization or SMS | The system recorded an IP change during the session | Use a static IP, not rotating |
| App says "No connection" | The mobile app does not support the proxy protocol | Set up VPN mode or exclude the app |
| Payment does not go through, card "not found" | The payment processor blocks the transaction from the proxy IP | Disable the proxy during the payment |
The most common scenario for arbitrageurs and SMM specialists: they work in an anti-detect browser (Dolphin Anty, AdsPower, GoLogin) with a data center proxy, and when it’s time to pay for the ad account or top up the balance — the payment fails. This is exactly the case when you need to either set an exception or change the type of proxy.
Quick Solution: Exceptions and Bypasses
The simplest and most reliable way to solve the problem is to not route banking traffic through the proxy at all. This is called "exception" or "bypass." You continue to work through the proxy for all other tasks, while the banking site opens directly through your real IP.
When This Is Suitable:
If you do not need to hide your real IP from the bank — this is the perfect solution. You simply tell the proxy client: "for these addresses — go directly." The bank sees your regular home or office IP, everything works as usual.
How to Add the Bank to Exceptions — General Principle
Regardless of which tool you use, the logic is the same: you specify the domains or IP addresses of the bank that should bypass the proxy. Here’s what you need to add to the exceptions list:
- Main domain of the bank: for example
sberbank.ru,tinkoff.ru,alfabank.ru - Subdomains via mask:
*.sberbank.ru— this will cover all subdomains - Payment system domains:
3ds.paymaster.ru, domains of 3D Secure of your bank - API domains of the mobile app (if you know them)
If you do not know the exact domains — open the banking website without a proxy, press F12 (developer tools), go to the "Network" tab, and see which domains the page accesses. All these domains need to be added to the exceptions.
Setting Exceptions in Browsers and Anti-Detect Browsers
Now let’s specifically discuss where and how to set exceptions in popular tools. Most readers of this blog work with anti-detect browsers — so let’s start with them.
Dolphin Anty
Dolphin Anty is one of the most popular anti-detect browsers among arbitrageurs. Setting exceptions here is done at the profile level:
- Open the profile where you need to set the exception
- Go to profile settings → "Proxy" section
- Find the "Bypass list" or "Exceptions" field
- Enter the bank domains separated by commas or on new lines:
*.tinkoff.ru, tinkoff.ru - Save the profile and restart the browser
If there is no field for exceptions in Dolphin in a specific version — use a proxy manager extension within the browser (for example, SwitchyOmega).
AdsPower
In AdsPower, setting exceptions is similar:
- Go to edit the required browser profile
- "Proxy" section → find the line "No Proxy for" or "Proxy Bypass"
- Enter the bank domains. Format:
*.alfabank.ru - Save changes
GoLogin and Multilogin
GoLogin and Multilogin also support bypass lists. In GoLogin, this field is called "Bypass proxy for these hosts" and is located in the proxy profile settings. In Multilogin — there is a similar setting in the "Proxy settings" section of each profile.
Regular Chrome / Firefox Browser
If you use a proxy not through an anti-detect browser, but through system settings or an extension:
Through the SwitchyOmega extension (Chrome/Firefox):
- Open SwitchyOmega settings → "Bypass List" section
- Add the bank domains: each on a new line
- Click "Apply changes"
- Now when you go to the bank's website, the traffic will go directly
Through Windows system settings:
- Start → Settings → Network & Internet → Proxy
- In the "Do not use a proxy server for the following addresses" field, enter the bank domains
- Save the settings
Which Type of Proxy is Not Blocked by Banks
Sometimes it is impossible or undesirable to set an exception — for example, if you need to work with a bank from a specific country or city. In this case, the solution is to choose the right type of proxy that the bank does not recognize as a proxy.
| Type of Proxy | Risk of Blocking by the Bank | Why | Suitable for Banks? |
|---|---|---|---|
| Datacenter | Very High | IP belongs to a hosting provider, easily identifiable | ❌ No |
| Residential | Low | IP of a real home user, looks like regular internet | ✅ Yes (static) |
| Mobile | Minimal | IP of a mobile operator — banks trust them the most | ✅ Yes |
| Free Proxies | Maximum | All IPs are blacklisted, traffic is not encrypted | ❌ Never |
The key point: if you still need to work with a bank through a proxy (for example, managing client ad accounts from different countries and paying them through the corresponding banks), choose residential proxies with the option of a static IP. Rotating residential proxies are not suitable for banks — the bank will notice the IP change and block the session.
A static residential IP is the address of a real home user, which is assigned to you for a long period. From the bank's perspective, this looks like an ordinary person who always logs in from the same home connection. This is how normal client behavior should look.
For tasks where maximum resemblance to a real mobile user is needed, consider mobile proxies — they use IPs from cellular operators (MTS, Beeline, Tele2, and analogs in other countries). Banks historically trust mobile IPs more than home ones, as millions of people use banking apps through mobile internet daily.
What to Do If the Mobile Banking App Does Not Work
Mobile banking apps are a separate story. They do not support proxy settings directly (unlike browsers), so the solutions here are different.
Scenario 1: Proxy is Set at the Device or Router Level
If all traffic from your phone goes through a proxy (via Wi-Fi settings or a VPN app), the banking app will also use this route. The solution:
- On Android: Settings → Wi-Fi → Your network → Advanced → Proxy → select "None" or add bank domains to exceptions
- On iOS: Settings → Wi-Fi → Your network → Configure Proxy → in the "Ignore" field, add bank domains
- If using a VPN app — find "Split tunneling" in its settings and add the banking app to the exceptions list
Scenario 2: Working on a Computer, Banking App on Phone
This is the simplest case. If the proxy is set only on the computer — the mobile app on the phone works independently and should not be affected. Just use the banking app directly from the phone.
Scenario 3: Android Emulator on Computer
Some specialists run banking apps through emulators (BlueStacks, LDPlayer). If the emulator works through a proxy — the bank may block access as it sees the IP of a data center or proxy service. In this case:
- Set up a proxy in the emulator with an exception for the banking app
- Or use a separate connection without a proxy for the emulator
- Or completely abandon the proxy for the banking app in the emulator
Why Banking Apps Are Especially Sensitive
Mobile banking apps use additional verification methods beyond IP: they analyze the device ID, check for root access, look at installed apps (some anti-detect tools may be on a blacklist), and check the integrity of the app itself. Therefore, even if you solve the proxy issue — there may be other blocking reasons related to the device.
Checklist: Check These 7 Points Before Panicking
If the banking website or app does not work through a proxy — go through this list in order. In most cases, the problem is resolved in the first three points.
- Completely disable the proxy and check if the bank works without it. If it does not work without the proxy either — the problem is not with the proxy, but with the bank's website or your internet.
-
Check if your proxy's IP has been blacklisted.
Go to
whoer.netoripqualityscore.comthrough the proxy and check the IP rating. If it says "Proxy detected" or "High fraud score" — change the IP. - Add the bank domains to the bypass list of your proxy client. This is the quickest solution — the bank will open directly, everything else through the proxy.
- Check the type of proxy. If you are using a data center proxy — they are almost always unsuitable for working with banks. You need residential or mobile proxies.
- Make sure the proxy's geolocation matches the country of your bank account. Russian bank + IP from Germany = almost guaranteed session blocking.
- Check if your IP is rotating during the session. Banks require a static IP. Rotating proxies (when the IP changes every few minutes) are not suitable.
- Clear the cache and cookies of the browser for the bank's website. Sometimes the bank "remembers" the old IP in cookies and blocks the session, even if you have already changed the proxy or disabled it.
Additional Tips for Arbitrageurs and SMM Specialists
If you work with multiple ad accounts in Dolphin Anty or AdsPower and regularly pay for ads through the bank — develop a habit: keep one separate browser profile without a proxy (or with a static residential proxy) specifically for banking operations. Do not mix the banking profile with working accounts like Facebook Ads or TikTok Ads — this will reduce the risk that the bank's anti-fraud system "remembers" suspicious patterns.
One more point: if you use a data center proxy for your main work — this is fine for most tasks: scraping, monitoring prices on Wildberries or Ozon, working with APIs. But for any financial operations, data center proxies are better avoided — or at least set exceptions for payment services.
Conclusion
The problem of "proxy blocks bank" is solved in most cases by one of two methods: either you add the bank domains to the exceptions list (and it opens directly), or you change the proxy type to residential or mobile. Data center proxies and free proxies for banking services almost never work — this must be accepted as a fact and the workflow built considering this limitation.
The main rule: do not use the same proxy for work tasks and for the bank. Separate the streams — and most problems will disappear on their own. For ad accounts and multi-accounting — one profile with a working proxy. For payments and banking operations — a separate profile with a clean IP.
If you need to work with a bank through a proxy (for example, managing foreign ad accounts and paying for them through foreign cards), we recommend paying attention to residential proxies with a static IP — they have real home addresses that banking anti-fraud systems perceive as ordinary users, not as proxy servers.