VPN services can look complicated when you first start comparing them.

One provider might advertise hundreds or thousands of servers. Another may highlight advanced encryption, a kill switch, split tunneling, multi-hop connections, or threat protection.

But what do these features actually mean?

You don’t necessarily need every feature advertised by a VPN provider. The important thing is understanding what each feature does and whether it is relevant to the way you use the internet.

This guide explains some of the most common VPN features in straightforward terms, including encryption, VPN protocols, server locations, kill switches, split tunneling, DNS leak protection, simultaneous connections, and more.

What Is a VPN?

A virtual private network, or VPN, creates a connection between your device and a VPN server and routes your internet traffic through that connection.

One of the main purposes of a VPN is to provide an encrypted connection between your device and the VPN server.

A VPN can also make websites generally see the VPN server’s IP address instead of the IP address associated with your normal internet connection.

However, a VPN doesn’t make you completely anonymous or protect you from every type of online threat.

The specific features and capabilities vary between providers.

1. Encryption

Encryption is one of the fundamental technologies behind a VPN.

In simple terms, encryption transforms information into a form that cannot be easily understood without the appropriate means of decrypting it.

A VPN uses encryption to protect traffic traveling between your device and the VPN service.

This can be particularly useful when you’re connected to a network that you don’t control.

The FTC notes that many websites already use encryption, including through HTTPS, so using a VPN isn’t the only form of encryption you may encounter online.

Why does encryption matter?

Without appropriate encryption, someone with access to a network may potentially be able to observe certain network traffic.

A VPN adds another encrypted layer between your device and the VPN server.

However, once your traffic leaves the VPN server and continues to its destination, other forms of encryption—such as HTTPS—may still be important.

A VPN does not replace HTTPS or other security measures.

2. VPN Protocols

A VPN protocol determines how your device establishes and maintains the VPN connection.

Different protocols can have different characteristics involving:

• Security
• Connection speed
• Stability
• Compatibility
• Battery usage
• Network performance

Common VPN protocols include technologies such as:

• WireGuard
• OpenVPN
• IKEv2/IPsec

The exact protocols offered depend on the provider.

Do you need to understand VPN protocols?

Not necessarily.

Many VPN applications automatically select an appropriate protocol.

But knowing which protocols are available can be useful if you experience connection problems or want more control over your VPN setup.

When comparing providers, check whether the VPN supports modern protocols and whether those protocols are available on the devices you use.

3. Server Locations

VPN providers operate servers in different geographic locations.

When you connect to a particular location, your internet traffic is routed through a VPN server in that location.

Providers often advertise the number of countries or locations they support.

For example, a provider might offer servers in:

• United States
• Canada
• United Kingdom
• Germany
• Australia
• Singapore
• India

The exact locations vary by provider.

Does more servers mean a better VPN?

Not necessarily.

A provider with thousands of servers isn’t automatically better for every user.

Instead, consider:

• Are servers available where you need them?
• Are there multiple locations in important regions?
• Does the provider disclose whether certain locations use virtual servers?
• How reliable are connections to the locations you use?
• Are specialized server types available?

If you mainly use a VPN for privacy while traveling, the locations that matter most may be the countries you regularly visit rather than the provider’s total worldwide server count.

4. IP Address Masking

When you connect to a VPN, websites generally see the IP address of the VPN server rather than the IP address associated with your normal internet connection.

This can make your apparent network location different.

For example, you could be physically located in one city while your VPN connection exits through a server in another location.

But IP address masking should not be confused with complete anonymity.

Websites can identify users through other information, including:

• Account logins
• Cookies
• Browser characteristics
• Device information
• Information users provide directly

A VPN changes an important part of your network identity, but it doesn’t erase every other identifier.

5. Kill Switch

A VPN kill switch is designed to help prevent your device from continuing to use its normal internet connection if the VPN connection unexpectedly drops.

Without a kill switch, there can be situations where your VPN connection disconnects and your device automatically continues accessing the internet through the regular connection.

A kill switch can help reduce the chance of your traffic continuing outside the VPN connection.

When is a kill switch useful?

It may be particularly useful if maintaining the VPN connection is important for your privacy requirements.

For example, you might want a kill switch when:

• Using a public Wi-Fi network
• Working remotely
• Handling sensitive information
• Using a VPN consistently for privacy

The exact behavior varies between VPN applications and operating systems.

When comparing providers, check whether the kill switch works on the specific devices you use.

6. DNS Leak Protection

DNS, or the Domain Name System, helps translate domain names into IP addresses.

For example:

protectionseek.com → an IP address

When using a VPN, DNS requests may also need to be handled appropriately to prevent them from being sent outside the VPN connection.

Some VPN providers therefore include DNS leak protection.

The purpose is to help ensure that DNS requests are routed through the intended VPN connection rather than being exposed through another DNS service.

If privacy is a major reason you’re using a VPN, DNS leak protection is a feature worth understanding.

7. IP Leak Protection

A VPN can provide privacy benefits only if traffic that should be routed through the VPN isn’t accidentally exposed through your normal connection.

VPN providers may therefore advertise IP leak protection as part of their service.

This can be particularly relevant when:

• The VPN connection changes
• A connection unexpectedly drops
• You switch networks
• You change VPN servers

A VPN application may use several mechanisms to reduce the possibility of traffic or identifying information escaping outside the VPN connection.

8. Split Tunneling

Split tunneling lets you decide which traffic uses the VPN and which traffic uses your normal internet connection.

For example, you might configure:

Work application → VPN

Local banking application → Normal connection

The exact configuration depends on the VPN application and operating system.

Why use split tunneling?

It can be useful when:

• A particular application doesn’t work properly through the VPN
• You need local network access
• You want only certain traffic to use the VPN
• You want to reduce unnecessary VPN traffic

It’s a useful feature for some users, but not something everyone needs.

9. Simultaneous Connections

VPN providers often allow multiple devices to use one subscription.

But there’s an important distinction between:

Supported devices

and

Simultaneous connections.

A provider might support Windows, Mac, Android, and iPhone while limiting the number of devices that can be connected at the same time.

If you have several devices, check the provider’s current simultaneous-connection limit.

For example, you might want to use the VPN on:

• Desktop
• Laptop
• Smartphone
• Tablet
• Smart TV

The subscription may support all of those platforms but impose a limit on how many can be connected simultaneously.

10. Multi-Hop or Double VPN

Some VPN providers offer a feature called multi-hop or double VPN.

Instead of routing your connection through one VPN server, the traffic is routed through more than one VPN server.

The idea is to add another layer to the VPN routing process.

This can be useful for people who have specific privacy requirements.

However, additional routing can also affect connection speed.

For most users, multi-hop isn’t necessarily required for everyday VPN use.

11. Obfuscated Servers

Some VPN providers offer obfuscated servers or similar technologies designed to make VPN traffic less recognizable to certain network systems.

This can be useful in environments where VPN traffic may be restricted or treated differently.

The availability and purpose of obfuscation features vary between providers.

If you don’t regularly encounter VPN restrictions, this may not be an important factor when choosing a service.

12. Private or Dedicated IP Addresses

Some VPN providers offer dedicated or private IP address options, sometimes for an additional fee.

A normal VPN connection may assign you an IP address that is shared with other users.

A dedicated IP gives you an IP address that is associated specifically with your account or subscription.

This can be useful for certain situations, such as:

• Accessing systems that require a consistent IP address
• Remote work environments
• Certain business applications
• Reducing repeated CAPTCHA prompts in some circumstances

However, a dedicated IP isn’t necessarily better for everyone.

If your goal is simply to reduce the association between your regular internet connection and websites you visit, a dedicated IP may not be the feature you’re looking for.

13. Threat Protection and Malicious-Site Blocking

Some VPN providers offer features that go beyond the basic VPN connection.

These may include:

• Malicious website blocking
• Tracker blocking
• Ad blocking
• Malware-related protection
• Phishing protection

These features can provide additional security, but they don’t turn a VPN into a complete antivirus solution.

If a provider advertises threat protection, check exactly what it does and what platforms support it.

14. VPN Apps and Ease of Use

A technically capable VPN isn’t particularly useful if the application is difficult to use.

When comparing providers, consider:

• How easy it is to connect
• Whether server selection is straightforward
• Whether settings are easy to understand
• Whether automatic connection is available
• Whether the application is stable
• Whether the interface is available on your devices

For someone who isn’t technically experienced, ease of use may be more valuable than having several advanced settings.

15. Automatic Connection

Some VPN applications allow you to automatically connect to a VPN when:

• Your device starts
• You join an unfamiliar Wi-Fi network
• You connect to a particular type of network

Automatic connection can be useful if you want the VPN to be active without remembering to turn it on manually.

Whether you need it depends on how you use your device.

16. Privacy and No-Logs Policies

A VPN provider’s privacy practices deserve particular attention because your internet traffic is being routed through its infrastructure.

Many providers advertise a no-logs policy, but you shouldn’t assume that every provider means exactly the same thing by that term.

Look at:

• What information is collected
• Whether connection information is stored
• Whether browsing activity is recorded
• How long data is retained
• Whether data is shared with third parties
• Whether the provider has published independent assessments of its privacy practices

A provider’s privacy policy is an important document to review before subscribing.

VPN Features: What Matters Most?

You don’t necessarily need every feature described above.

A practical way to prioritize them is:

Essential considerations

• Privacy practices
• Encryption
• Supported devices
• Reliable connections
• Appropriate VPN protocols
• Clear terms and pricing

Useful depending on your needs

• Kill switch
• DNS leak protection
• Split tunneling
• Multiple simultaneous connections
• Server locations
• Automatic connection

More specialized features

• Multi-hop
• Obfuscated servers
• Dedicated IP
• Advanced routing options

Your priorities should depend on how and why you intend to use the VPN.

A VPN Feature Comparison Checklist

Before choosing a provider, consider this checklist:

Feature	What to Ask
Encryption	How is the VPN connection protected?
Protocols	Which protocols are supported?
Server locations	Are the locations you need available?
IP masking	Does the VPN route your connection through its servers?
Kill switch	Does it work on your devices?
DNS leak protection	How are DNS requests handled?
IP leak protection	What happens if the VPN connection drops?
Split tunneling	Can you choose which apps use the VPN?
Simultaneous connections	How many devices can connect at once?
Multi-hop	Is multiple-server routing available?
Obfuscation	Is it available if you need it?
Dedicated IP	Is a private IP available?
Threat protection	What additional blocking features are included?
Privacy policy	What information does the provider collect?
Pricing	What is the long-term subscription cost?

Do You Need All These VPN Features?

No.

A common mistake when comparing VPNs is choosing the provider with the longest feature list.

Instead, start with your reason for using a VPN.

If your main goal is privacy

Focus on:

• Privacy policy
• Logging practices
• Encryption
• Leak protection
• Kill switch

If you travel frequently

Consider:

• Server locations
• Connection reliability
• Supported devices
• Automatic connection
• Public Wi-Fi use

If you use many devices

Focus on:

• Platform compatibility
• Simultaneous connections
• Router support
• Ease of managing multiple devices

If you need advanced privacy features

You might consider:

• Multi-hop
• Obfuscated servers
• Dedicated IP options
• Split tunneling
• Advanced connection controls

There’s no reason to pay for advanced features you don’t need.

What a VPN Does Not Do

Understanding the limits of VPN technology is just as important as understanding its features.

A VPN does not automatically:

• Remove malware from your device
• Prevent every phishing attack
• Make you completely anonymous
• Protect accounts with weak or stolen passwords
• Replace antivirus software
• Replace software updates
• Guarantee that a website is legitimate
• Prevent every form of online tracking

The FTC warns that even encrypted websites can be fraudulent, meaning HTTPS or a VPN connection doesn’t prove that the website you’re visiting is trustworthy.

A VPN should therefore be viewed as one part of a broader security and privacy strategy.

Final Thoughts

VPN features can look complicated, but most of them address a fairly specific purpose.

Encryption helps protect the VPN connection.

VPN protocols determine how the connection is established.

Server locations determine where your VPN connection exits the internet.

A kill switch can help prevent traffic from continuing through your normal connection if the VPN disconnects.

Split tunneling lets you choose which traffic uses the VPN.

Leak protection helps reduce the chance of certain identifying information escaping outside the VPN connection.

And features such as multi-hop, obfuscation, dedicated IPs, and threat protection may be useful for particular users but aren’t necessary for everyone.

The best VPN isn’t necessarily the one with the longest feature list.

It’s the one whose privacy practices, security features, device support, performance, and cost match the way you actually intend to use it.

ProtectionSeek helps consumers research and compare VPN and online privacy services so they can understand what different features mean before choosing a provider.

Explore ProtectionSeek’s VPN & Online Privacy category to compare providers and learn more about their available features and plans.

Disclosure

ProtectionSeek may receive compensation from affiliate links when a visitor purchases a product or service through certain links on our website. This does not change the price you pay. VPN features, pricing, privacy policies, server locations, supported devices, and terms can change, so review the provider’s current information before making a purchase.