What is a DNS Leak?

A Domain Name System, or DNS, is like the directory of the internet. It transforms domain names into IP addresses and this allows browsers to access websites, among other internet services. Because of DNS, internet users can simply enter the name of a website and surf online instead of memorizing a long list of IP addresses. Think of it like a phone operator connecting you to a contact. When a DNS leaks, it means that your requests are going to an untrusted phone operator, rather than the one you intended to use.

How Does a DNS Leak Happen?

DNS leaks usually happen when a VPN is programmed incorrectly or if the VPN service you’re using is simply unreliable. Sometimes a VPN you’re using, like a  free VPN provider for example, may not have its own DNS servers at all and use untrustworthy ones that you might not be aware of. Faulty VPNs can also leak your DNS queries by routing them outside of the protection of the VPN.

A good VPN will typically have its own DNS servers, and be a trusted provider across the board. With Mozilla VPN, all DNS queries get routed over within our network of servers, provided by Mullvad. Having a VPN from a reputable company like Mozilla that’s dedicated to online privacy can give users comfort in knowing that all their traffic, including their DNS queries, are protected.

Mozilla VPN, DNS Leaks, and Your Privacy

Subscribing to get Mozilla VPN gives you an extra layer of security for your internet network and is a defense you can use to better protect your internet data from DNS leaks, and other security flaws. With Mozilla VPN, Mozilla does the heavy, online security protection so you can simply focus on what you care about online.