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What are obfuscated servers?

Obfuscated servers are specialized VPN (Virtual Private Network) servers that make encrypted VPN traffic look like regular internet traffic to bypass restrictions, firewalls, and DPI (Deep Packet Inspection).  

Also called stealth VPN or undetectable VPN, obfuscated servers are helpful if you’re connecting from a place with heavy internet censorship. Obfuscation ensures that even your ISP (Internet Service Provider) will have a hard time identifying that you’re connected to a VPN.

What are obfuscated servers?

How does VPN obfuscation work?

VPNs can be detected by checking the digital makeup of your transmitted data. If the data looks like it’s been formatted by a VPN, your ISP, a firewall, or even an oppressive government can block it.

An infographic showing DPI looking at a data packet and a firewall blocking VPN traffic, resulting in denied access.

The obfuscation process is all about transforming VPN traffic. An obfuscated VPN server scrambles your data packets, so they won’t look like VPN traffic anymore and can bypass VPN-blocking firewalls. 

Instead of using traditional obfuscated servers, Surfshark’s stealth VPN offers obfuscation via a modified version of the OpenVPN protocol.

An infographic showing DPI approving obfuscated traffic of a data packet and it passing through a firewall to the website.

Why would you need obfuscated servers?

Censorship

If you live in a country that censors internet use, you might need obfuscated servers for your VPN to work. Obfuscation makes your encrypted connection harder to detect and helps you maintain your privacy.

ISP snooping

Concerned that your ISP monitors and controls too much of what you do online? Obfuscation will hide the fact that you’re using a VPN from ISPs, websites, and more.

Government tracking

Government tracking

Some governments track their citizens more than others. If you want to ensure your privacy is intact, obfuscated servers can help by preventing any VPN activity detection.

Strict internal networks

Strict internal networks

Network administrators for places like schools or universities can block VPN traffic. In these cases, obfuscation hides the fact that you’re using privacy-protection tools.

How do you use obfuscated servers?

Get Surfshark

Get Surfshark

Pick a Surfshark plan, install the app, and log in.

Go to your settings

Go to your settings

Go to Settings > VPN settings > Protocol.

Switch to OpenVPN

Switch to OpenVPN

Choose one of the OpenVPN options, and you’re all set.*

*The OpenVPN protocol automatically applies obfuscation to your traffic. OpenVPN is available on Windows, Linux, Android, and iOS apps. It can also be manually set up on macOS and all other platforms.

How can your ISP tell you’re using a VPN?

Generally, your ISP can tell you’re using a VPN by looking at your traffic patterns. All VPN services work similarly — they send your traffic through an encrypted VPN tunnel, which involves multiple layers of protection.

Traffic covered by VPN security has specific patterns and looks different from regular online traffic. A VPN uses common ports for identification and initiates unencrypted handshakes that can be monitored via DPI. These differences indicate to your provider that you’re using a VPN.

How can your ISP tell you’re using a VPN?

Surfshark security features

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See why millions trust Surfshark

Check out what users and tech experts around the world have to say about Surfshark.

The reviews highlighted in this section were selected from publicly available posts on social media platforms. They reflect the opinions of individual users at the time of posting and may not represent the full range of our product features and qualities.

Surfshark is a highly polished and powerful VPN that competes with the very best premium providers, all while offering a seriously tempting price point.

Surfshark is one of the best VPN services, comes crammed with features, runs on almost anything, and has some of the best download speeds around.

Surfshark is an excellent, well-rounded virtual private network that consistently ranks as one of CNET’s best VPNs.

The reviews quoted on this page have been published by media outlets associated with Surfshark through affiliate partnerships. Their recommendations are based on their own independent research and insights to ensure value for the readers.

I have been using Surfshark since I got it and I love it!

MRWHOSETHEBOSS
23M subscribers

When I am traveling, I use Surfshark to access the internet quickly and securely, works like a treat in China.

SAM CHUI
3.91M subscribers

We love Surfshark because it is an easy-to-use app that you can download on all your devices.

MAX & OCCY
326K subscribers

The reviews quoted on this page have been published by media outlets associated with Surfshark through affiliate partnerships. Their recommendations are based on their own independent research and insights to ensure value for the readers.

The reviews highlighted in this section were selected from publicly available posts on social media platforms. They reflect the opinions of individual users at the time of posting and may not represent the full range of our product features and qualities.

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Forbes Technology Council member 2026 Badge

Surfshark supports the open internet

We partner with digital rights organizations to promote online freedom and keep the internet safe and accessible to all.

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Frequently asked questions

Can a VPN be detected?

Yes, it’s possible to see that you’re using a VPN by looking at your traffic patterns. That doesn’t mean your activities are visible — only your VPN use is. You can use obfuscated servers to hide the fact that you’re using a VPN.

Can obfuscated servers bypass the Great Firewall of China?

While obfuscated servers are essential to bypassing China’s firewalls, they alone can’t guarantee that your VPN provider will work in China.

It takes complicated algorithms, advanced technologies, and continuous maintenance to keep a VPN service up and running for users in China. However, if your VPN provider offers obfuscation as Surfshark does, it’s a step in the right direction.

What does a VPN blocker do?

A VPN blocker is a tool that governments, ISPs, or website administrators use to deny access to a particular service when you connect to the internet with a VPN. The most commonly used method for preventing VPN access is by blocking specific IP addresses. Another common way is blocking ports that VPN tunneling protocols use, e.g., PPTP and L2TP. 

Can anyone track you using a VPN?

While a typical internet user can’t track you when you use a VPN, you’re never 100% anonymous online. That said, you’re much harder to track when you use a VPN.

A good VPN service encrypts your data and makes it unreadable to anyone else. Surfshark, for example, uses AEGIS-256X2, AES-256, and ChaCha20 encryption, which are considered the strongest encryption standards.

How do you know if a server is obfuscated?

There’s no easy way to check if a VPN server is obfuscated. You’d first need to look into your traffic patterns, which have a specific footprint. If you can identify these patterns, and your traffic doesn’t show them when you turn on your VPN, you’re probably connected to an obfuscated server.

Keep in mind that this kind of inspection requires extensive technical knowledge. If you’re unsure where to start, you can ask your VPN provider’s customer support team for help.

Can obfuscated servers impact your internet speed?

Yes, connecting to obfuscated servers can affect your internet connection speed like any other VPN connection. If your ISP is restricting your internet access or throttling your speeds, however, connecting to obfuscated servers should actually improve speeds.

In most cases, the additional layer of encryption from obfuscation slows your internet connection a little more than a regular VPN connection. That said, advanced VPNs like Surfshark use the newest infrastructure and 10 Gbps servers to make that speed loss unnoticeable.

What is the difference between obfuscated servers and a double VPN?

A double VPN routes your data through two VPN servers. Obfuscated servers only use a single server with a special stealth VPN protocol to hide VPN usage. 

However, a double VPN — like Surfshark’s Multi Hop feature —  also works on obfuscated servers.

Are obfuscated servers better than standard servers?

Obfuscated servers aren’t necessarily better than traditional VPN servers, as the optimal choice depends on your specific needs.

Obfuscated servers hide your traffic to bypass censorship and enhance privacy, but they’re often slower due to the added encryption layer. On the other hand, standard servers are faster and simpler, but they don’t offer any traffic concealment.

Obfuscated servers can be better for you if privacy and censorship avoidance are priorities, but standard servers might be preferable for better performance and general browsing.

What are the benefits of obfuscated servers?

Obfuscated VPN servers can help VPN users by:

  • Masking VPN activity: obfuscation hides the fact that you’re using a VPN from your ISP and network admins;
  • Maintaining online security: although your VPN traffic is disguised, all your data remains fully encrypted;
  • Avoiding detection: your VPN traffic patterns can’t be identified by DPI technology.