China, UAE, Iran, Russia โ in these and several other countries, VPN services are either officially blocked or operate unstably due to DPI filtering. If you are an arbitrage specialist, SMM expert, or simply working remotely from a "difficult" jurisdiction, you know: NordVPN or ExpressVPN sometimes just won't connect. Proxies solve this problem โ but only if you choose the right type and properly configure the chain.
Why VPNs are blocked and how it works technically
To understand how proxies help bypass VPN blocks, you need to figure out how exactly governments and internet service providers identify VPN traffic. This is not magic โ it's a technology called DPI (Deep Packet Inspection).
When you connect to NordVPN or ExpressVPN, your traffic has characteristic "fingerprints": specific ports (for example, UDP 1194 for OpenVPN), characteristic TLS handshake patterns, fixed IP addresses of VPN provider servers. Government filtering systems โ such as the "Great Firewall of China" (GFW) or the TSPU in Russia โ can recognize these fingerprints and block the connection before it is established.
There are several types of blocks:
- IP blocking โ the provider blocks known IP addresses of NordVPN, ExpressVPN, and other services. Lists are updated regularly.
- Port blocking โ standard ports for VPN protocols (OpenVPN, WireGuard, IKEv2) are closed.
- DPI blocking โ the most complex option: traffic is analyzed by signatures, and the VPN connection is interrupted even if the IP is not on the blacklist.
- DNS blocking โ domains nordvpn.com, expressvpn.com do not resolve through local DNS servers.
That is why simply changing the server or protocol within NordVPN/ExpressVPN often does not help. An intermediate layer is needed โ a proxy that masks the very fact of connecting to a VPN server.
It is important to understand:
A proxy itself does not encrypt traffic as a VPN does. But it serves as a "bridge" through which the VPN client establishes a connection to the server, bypassing the block. The combination of proxy + VPN provides both bypassing blocks and encryption.
Proxy + VPN: how the combination works and why it is needed
The working scheme looks like this: your device โ proxy server (in an unblocked jurisdiction) โ NordVPN/ExpressVPN server โ internet. From the perspective of your provider and DPI systems, you are simply connecting to some server via HTTPS or SOCKS5 โ there are no signs of VPN traffic.
This is especially important for the following scenarios:
- Arbitrage specialists and media buyers who are physically located in a country with restrictions but work with Facebook Ads, TikTok Ads, Google Ads and need a stable foreign IP.
- SMM specialists managing client accounts from Instagram, TikTok, YouTube โ platforms that are blocked in several countries.
- Remote employees connecting to corporate VPN networks from business trips to China, UAE, or other "difficult" countries.
- Marketplace sellers who need access to foreign platforms (Amazon, eBay) for price monitoring and account management.
The key advantage of the proxy + VPN combination over using only a proxy: the VPN encrypts all traffic between you and the VPN server. Even if the proxy provider theoretically sees your traffic, they only see an encrypted data stream, not its content. This is critically important when working with advertising accounts, banking data, and corporate systems.
Which type of proxy is suitable for bypassing VPN blocks
Not every proxy can handle the task. Let's analyze what works and what doesn't โ and why.
| Proxy Type | Bypass DPI | Speed | Stability | Suitable for VPN |
|---|---|---|---|---|
| Residential Proxies | โ Excellent | Average | High | โ Yes |
| Mobile Proxies | โ Maximum | Average | Very High | โ Yes (priority) |
| Datacenter Proxies | โ ๏ธ Weak | High | Average | โ ๏ธ Limited |
| Free Proxies | โ No | Very Low | Very Low | โ No |
Residential Proxies โ IP addresses of real home users from different countries. DPI systems perceive them as regular user traffic, not as data center or VPN service traffic. Residential proxies work well in most countries with moderate restrictions โ Russia, Belarus, Kazakhstan.
Mobile Proxies โ IP addresses of mobile operators (3G/4G/5G). This is the "cleanest" traffic from the perspective of filtering systems: mobile IP addresses are very rarely blocked, as thousands of real users can be behind one IP. For work in China, UAE, and Iran, mobile proxies are the preferred choice.
Datacenter Proxies are fast and cheap, but their IP ranges are well known to blocking systems. In China or the UAE, they are unlikely to help โ GFW and similar systems have long blacklisted most ranges of commercial data centers.
The protocol matters: for the proxy + VPN combination, use SOCKS5, not HTTP/HTTPS proxies. SOCKS5 operates at a lower level and supports any types of traffic, including UDP (which is used by WireGuard and some modes of OpenVPN). HTTP proxies are suitable only for browser traffic and cannot tunnel VPN connections.
Setting up a proxy for NordVPN: step-by-step guide
NordVPN supports working through SOCKS5 proxies in its settings. Here's how to set it up:
Step 1: Get proxy data
You will need: the IP address or hostname of the proxy server, port, username, and password (for authentication). Make sure the proxy supports the SOCKS5 protocol โ this is a mandatory condition.
Step 2: Open NordVPN settings
Launch the NordVPN application. In the lower left corner, click on the gear icon (settings). Go to the Advanced section.
Step 3: Find the Proxy section
In the "Advanced" section, find the Proxy or Proxy Settings item. Turn on the "Use Proxy" switch. In the drop-down menu, select the SOCKS5 type.
Step 4: Enter proxy data
Fill in the fields:
- Address (Host): IP address or domain of your proxy server
- Port: usually 1080 for SOCKS5, but it depends on the provider
- Username: login for authentication
- Password: password for authentication
Step 5: Choose the connection protocol
In the NordVPN settings, go to the "Protocol" section and select NordLynx (WireGuard) or OpenVPN TCP. For countries with strict DPI filtering (China, UAE), OpenVPN TCP is recommended, as its traffic is easier to mask as regular HTTPS. NordLynx is faster, but its UDP traffic is easier to detect.
Step 6: Enable Obfuscated Servers
NordVPN has special servers with obfuscation โ Obfuscated Servers. They mask VPN traffic as regular HTTPS. Enable this option in the settings: Specialized Servers โ Obfuscated Servers. In conjunction with a proxy, this provides a double layer of protection against DPI.
Advice for China and UAE:
Set up the proxy and enable Obfuscated Servers before entering the country or before activating a local SIM card. Once you are already under a block, downloading app updates or getting a server list may be impossible.
Setting up a proxy for ExpressVPN: step-by-step guide
ExpressVPN has its own Lightway protocol, which works well to bypass blocks, but in some countries, even it does not work without an additional proxy layer. Hereโs how to set up the combination:
Step 1: Setup through system proxy (Windows)
ExpressVPN on Windows and Mac uses system proxy settings. Open Windows Settings โ Network & Internet โ Proxy. Turn on "Use a proxy server". Enter the address and port of your SOCKS5 proxy. Click "Save".
After that, launch ExpressVPN โ it will automatically use the proxy to connect to its servers.
Step 2: Setup on Mac
On macOS, go to System Preferences โ Network โ select active connection โ Advanced โ Proxies. Check the box next to SOCKS Proxy. Enter the server address and port. Click "OK" and "Apply".
Step 3: Choose protocol in ExpressVPN
Open ExpressVPN, go to Settings โ Protocol. For working through a proxy in blocked countries, choose:
- Lightway TCP โ preferred choice, works well to bypass DPI
- OpenVPN TCP โ alternative if Lightway does not work
- Automatic โ ExpressVPN will select a working protocol itself
Step 4: Choose a server
Choose servers in neighboring countries with good connectivity: for China โ Hong Kong, Japan, Singapore; for UAE โ Netherlands, Germany, United Kingdom; for Russia โ Finland, Netherlands, Germany. Servers in geographically close countries provide lower latency.
Step 5: Check the connection
After connecting to ExpressVPN through the proxy, check your IP on whatismyip.com or ipleak.net. You should see the IP address of the ExpressVPN server, not the proxy or your real IP. If everything is correct โ the combination works properly.
Features of operation by country: China, UAE, Russia, Iran
Each country with VPN restrictions has its own features of technical implementation of blocks. This affects the choice of proxy type and configuration.
๐จ๐ณ China โ Great Firewall (GFW)
The most complex jurisdiction. GFW uses multi-layer DPI filtering, actively blocks IP ranges of data centers and known VPN providers. Blacklist updates occur in real-time. Filtering is especially strict during political events.
Recommendation: only mobile or residential proxies with IP rotation. Datacenter proxies do not work. Be sure to enable Obfuscated Servers in NordVPN or use Lightway TCP in ExpressVPN.
๐ฆ๐ช UAE โ Telecommunication Control
In the UAE, VoIP services and many VPNs are officially blocked. Two state operators โ Etisalat (e&) and du โ control all traffic. Blocks are less aggressive than in China, but consistently work against popular VPN services.
Recommendation: residential or mobile proxies with European or American IPs. Proxies with IPs from the UAE are not suitable for this task โ a connection through an unblocked jurisdiction is needed.
๐ท๐บ Russia โ TSPU and Roskomnadzor Registry
Since 2022, Russia has been actively using the TSPU (Technical Means of Counteracting Threats) system. IP addresses of VPN provider servers that do not meet Roskomnadzor requirements are blocked. Many VPNs operate unstably, periodically "falling through".
Recommendation: residential proxies with IPs from unblocked countries (Netherlands, Germany, Finland) usually work stably. Datacenter proxies work worse, but still better than in China. Mobile proxies provide maximum reliability.
๐ฎ๐ท Iran โ NSFW and National Intranet
Iran is building a national intranet and actively blocks external services. VPN blocks are very strict, especially during protests. The speed of international channels is artificially limited.
Recommendation: only mobile proxies. Residential proxies operate unstably. It is important to have several backup proxy servers โ switching between them may take several minutes at a critical moment.
Real scenarios: arbitrage, SMM, remote work
Let's analyze specific work situations where the proxy + VPN combination is critically important.
Scenario 1: Arbitrage specialist on a business trip to China
A media buyer works with Facebook Ads and TikTok Ads. He flies to Shanghai for 3 weeks. Without preparation โ complete loss of access to advertising accounts. Proper preparation:
- Before entering: buy a mobile proxy with an IP in Hong Kong or Singapore
- Set up a SOCKS5 proxy in the system settings of the laptop
- Install NordVPN with Obfuscated Servers enabled, server โ Hong Kong
- Check the operation of Facebook Ads Manager and TikTok Ads through this combination
- Save a backup proxy in case the main one gets blocked
When working through an anti-detect browser like Dolphin Anty or AdsPower โ set up the proxy within the browser profile, and run the VPN on top. This provides a triple layer of protection: proxy โ VPN โ anti-detect.
Scenario 2: SMM agency with clients from UAE
An SMM specialist manages 15 Instagram and TikTok accounts for clients from UAE. Part of the work is done remotely from Russia. Problem: Instagram and TikTok work in UAE, but some automation tools and VPN services do not.
Solution: mobile proxies with IPs from UAE to simulate local presence + ExpressVPN for traffic encryption. In Multilogin or GoLogin, each account receives a separate profile with proxies from UAE, while the VPN ensures the security of the communication channel.
Scenario 3: Remote employee connecting to corporate VPN
A developer works remotely and needs to connect to the company's corporate VPN network (for example, Cisco AnyConnect or Palo Alto GlobalProtect). From Russia or China, a direct connection to the corporate VPN server is blocked.
Solution: residential proxy with a European IP โ corporate VPN. Traffic to the proxy server looks like regular HTTPS, and from the proxy to the corporate VPN server โ a standard VPN connection that is not blocked in Europe.
Scenario 4: Monitoring prices on foreign marketplaces
A seller monitors prices on Amazon and eBay from Russia. Direct access is restricted, and parsers are often blocked. Combination: datacenter proxies with rotation (for parsing speed) + NordVPN for encrypting requests. For parsing tasks, datacenter proxies are better suited โ they are faster and cheaper, and strict DPI filtering is not typical for marketplaces.
Checklist: how to check that everything works
After setting up the proxy + VPN combination, be sure to check each item:
โ Basic connection check
- Open ipleak.net โ the IP should belong to the VPN server, not the proxy or your provider
- Check for DNS leaks at dnsleaktest.com โ DNS requests should go through the VPN
- Check for WebRTC leaks at browserleaks.com/webrtc โ the real IP should not be visible
- Visit whoer.net โ anonymity should be at least 90%+
โ Checks for specific tasks
- Facebook Ads: open Ads Manager โ it should load without geo-restriction errors
- TikTok Ads: check the availability of the ad account and loading statistics
- Instagram: make sure there are no warnings about suspicious logins
- Speed: run speedtest.net โ for working with ad accounts, a minimum of 5 Mbps is required
Common mistakes during setup:
- Using HTTP instead of SOCKS5 โ HTTP proxies do not support VPN traffic
- Proxy and VPN from the same country โ does not provide an advantage, choose proxies in unblocked jurisdictions
- Forgot to enable kill switch โ if the proxy disconnects, the VPN will connect directly and will be blocked
- Cheap proxies with overloaded servers โ speed will drop to an unacceptable level
Additional tools for stability
If you work from a country with strict restrictions on a regular basis, consider additional tools:
- Shadowsocks / V2Ray โ traffic obfuscation protocols specifically designed to bypass GFW. Used as a layer between you and the proxy.
- Tor Browser โ a last resort for very high anonymity, but the speed is too low for working with ad accounts.
- Anti-detect browsers (Dolphin Anty, AdsPower, Multilogin, GoLogin) โ if you work with multiple accounts, each profile gets its own proxy, while the VPN operates at the system level.
Conclusion
Working with NordVPN and ExpressVPN in countries with blocks is a solvable task if approached systematically. Key takeaways from this guide:
- Proxy + VPN is not redundancy, but a necessary combination in countries with DPI filtering
- For China and Iran โ only mobile proxies, for Russia and UAE โ residential or mobile
- Proxy protocol โ must be SOCKS5, not HTTP
- Enable obfuscation in the VPN client (Obfuscated Servers in NordVPN, Lightway TCP in ExpressVPN)
- Prepare in advance โ set everything up before entering a country with restrictions
- Always check for DNS and WebRTC leaks after setup
If you are working with Facebook Ads or TikTok Ads accounts from countries with restrictions, or managing client accounts through Multilogin or GoLogin โ we recommend starting with mobile proxies: they provide maximum resilience against DPI blocks and minimal risk of being blacklisted. For most tasks in Russia and the CIS, residential proxies work well โ they are faster than mobile ones and effectively handle standard IP blocks.
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