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How to Run DNS Leak Test On PC? How to Dectect & Protect Your DNS Risks?

Where to do DNS leak test & how important a DNS leak is? This post will tell you the best way to run DNS leak check & how to protect DNS with VPN.

What is the DNS leak test and why does DNS leak matter? To understand this, you need to get some knowledge about the DNS and to know how the DNS system supports your daily internet usage. Also, to understand why DNS leak is a critical problem that threatens your privacy & data security.

DNS Leak Test

Your browser uses a Domain Name System (DNS) to bridge the gap between the IP address and the website name you’ve entered. While you are entering a domain name (for example, google.com) it will be first sent to the DNS server, where the domain name is matched with the associated IP address (for instance,, Google’s IP address), then this IP address will be forwarded to the correct computer so that you can visit Google correctly.

As you may have noticed, all your request to visit websites will pass through the DNS server – it allows your ISP to monitor your online behavior – both sender & receiver's information will be recorded.

DNS Leak Test

The bad news is the DNS servers are owned by your local ISP and governed by national law. Related information can be forcefully given to law enforcement on government requests (follow the suits of Anti-terrorism Patriot Act). On the other hand, the ISPs can also sell your data to companies for marketing purposes.

This is the reason why the DNS leak test is important – it tells you if your DNS is leaked or potentially exposed – it can be a warning if your internet security is flawed. You might need a VPN for PC to protect your information from leaking.

How to Do DNS Leak Test?

It is not hard to do the DNS leak test – there are many web apps to test if your DNS is leaked. To test your DNS Leakage, to use a VPN service is highly recommended. The DNS leak test is meaningful only when your IP address are covered by an encrypted proxy – or your personal data & privacy will always be exposed.

DNS Leak Test

There are many web apps to test your VPN for DNS or other forms of data leaks, and if you're not sure what to do, you can simply go to ipleak.net while your VPN is functioning. The ipleak.net will automatically check for DNS leaks (and provides more information relate to your network).

Step 1. Type ipleak.net into the address bar of your browser.

DNS Leak Test

Step 2. After the page loads, the test starts automatically, and you will see an IP address appears.

DNS Leak Test

Step 3. If the address you see is your IP address and shows your location, and you are using a VPN, this means you have a DNS leak. If the address shown is your VPN's IP address, then it means you do not have a DNS leak.

Figure shows ipleak.net used with a poorly configured VPN. It is returning the real IP address. This is a DNS leak.

DNS Leak Test

After connecting to ipleak with iTop VPN Japanese servers (iTop VPN allows you choose from a range of different countries). No DNS leaks were detected.

DNS Leak Test

For most internet users, the above method of DNS leak test is sufficient. For demanding users, this will not be a perfect solution since it requires you to connect to the Internet and then send requests on the DNS leak test website as the extra step, which increases the risk of DNS leaks. Using a best free VPN for Windows for data telecommunication will increase the credibility of DNS leak test.

You can also use the CMD command to check if there’s a DNS leakage. To do this, search “cmd” in the Microsoft search bar, then execute the CMD.exe. Then enter the following command in the Command Prompt:

Ping [ServerName] -n 1

DNS Leak Test

You might like to choose a reliable private/public test server, here is a list for available public test server:

  • Whoami.akamai.net

  • resolver.dnscrypt.org

  • Whoami.fluffcomputing.com

  • whoami.utladns.net

DNS Leak Test

Please replace the [ServerName] with the test server you would like to connect to do the DNS leak test. For example, “ping whoami.akamai.net -n 1”. Then press Enter key. If the returned message appears in the command prompt includes any of the IP address that matches your real IP, then there is a DNS leak – only your VPN masked IP address should appear here.

We have already known how to do the DNS leak test after reading the post above. You might have noticed that it is necessary to have a VPN service then check the availability of DNS leak check. Also, the best & easiest way to protect your information from DNS leaks is to adopt a VPN service that can properly hide your IP & protect your privacy.

Know more about free unlimited VPN for Windows: >>Best Free Unlimited VPN for Windows 10<< 

The iTop VPN is one of the best VPN free services which can properly protect your information – as one of the best free VPNs on Windows, the iTop VPN can be your best internet security tool that offers professional network security protection, along with DNS leak proofing.

How to Protect DNS Leaks by Clicks – with iTop VPN

The iTop VPN launches a protection tool against DNS leaks specifically. To easily use the iTop DNS protection feature, just follow the instructions as follows:

Step 1: Download & install the iTop VPN for Windows

DNS Leak Test

Step 2: Execute the iTop VPN application, find the “Privacy Protection” tab on the left side, click in.

DNS Leak Test

Step 3: You will see a list of iTop security assistance tools, scroll down to the bottom, click “DNS Protection”, then activate.

After you activated the DNS protection, each time you’ve connected to iTop VPN secured networks, your DNS will be protected and there will have no concern of DNS leaking.

DNS Leak Test

The iTop VPN is a free-to-use VPN service – it cost you nothing to use – and you can access enough features to protect your internet security, like DNS leak proofing. If you need to try some fancy stuff and are willing to upgrade to their premium service, then a $1.99/month service fee could possibly be the best deal you can ever find.

This post has introduced how to do the DNS leak test, also a good DNS leaking protection VPN – iTop VPN- was introduced. Anyway, if you do concern about your internet security, using a proper VPN that hides your IP address, protecting you from possible DNS leaking is important.

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