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What is a DNS leak

2018/10/10

The Domain Name System (DNS) is a system of associated URLsand IP addresses. When you use a browser to access a website, it sends the address request you entered to the DNS server, and the DNS server will indicate its correct IP address. This is a key part of how the Internet works.

What is a DNS leak

Typically, DNS servers are provided by your Internet Service Provider (ISP), which means they can monitor and log any requests you send to the server. When you use a virtual private network (VPN), the DNS request should be directed to an anonymous DNS server through your VPN to prevent the ISP from monitoring your connection.


Unfortunately, sometimes your browser ignores the VPN you open and will send DNS requests directly to your ISP. This is called a DNS leak. This will cause you to think that you are anonymous and the network is not monitoring you, but in fact you will not be protected.


How to prevent leaks - change the DNS server?


If your default DNS server is assigned by your ISP, one of the easiest ways to prevent them from seeing what you are doing online is to change your DNS server. Even if you don't worry about DNS leaks, it's good to change the default DNS server, as this can increase your internet speed.


Since there are a large number of public DNS users on the market, there are certain security risks. Therefore, using VPN can effectively solve such security problems. The following is recommended for you:


NordVPN           >> GET DEAL

DNS Leak Blocking, First-party DNS, Smart DNS service


CactusVPN          >> GET DEAL

Good IP and DNS leak protection, Smart DNS option   


Related Reading >> Top 10 Best VPN Comparison
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