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Detect DNS Leaks

Our tool identifies which DNS servers transmit your requests and reveals potential data leaks.

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FAQ

How often should an online DNS query leak test be conducted?

It is advisable to perform a DNS leak test after making changes to network settings or installing new network applications to ensure the reliability and confidentiality of your internet connection.

If a proxy is set up only to redirect HTTP traffic, DNS queries may remain unprotected. When choosing a proxy, make sure it supports secure handling of DNS requests for full protection.

It is recommended to use reliable DNS servers, such as Google DNS or OpenDNS. These servers can be configured manually through the network settings of the device or through specialized DNS management software.

The DNS check displays the IP address associated with the requests, the provider offering this address, and the country where the DNS server is located, helping to determine its affiliation and potential risks.

This tool determines which DNS servers are handling user requests and identifies potential data leaks through DNS queries. Additionally, it displays the name of the provider, the user's IP address, and, if a leak is present, the IP address through which it occurs.

Why conduct a DNS leak test

Online DNS leak test is a tool for analyzing the security of an internet connection. This process helps identify instances where DNS requests pass outside encrypted channels, which could lead to the disclosure of information about the websites a user visits. Detecting a DNS leak is crucial for preventing unwanted monitoring of activity by third-party services.

It is important to note that a DNS leak test also helps assess whether VPN services and other protection tools are concealing user data.

Main reasons for DNS leaks:

  • Improper VPN configuration – DNS requests may be sent through a standard internet gateway instead of an encrypted VPN tunnel.
  • Software vulnerabilities – these can allow DNS requests to bypass protective measures.
  • DNS hijacking or spoofing – attacks where attackers redirect DNS requests to fake servers to intercept traffic.
  • Lack of DNS Security Extensions or improper use of the technology – makes DNS requests vulnerable to external manipulation.
  • Leaks through WebRTC – can reveal the true IP address of the user, including DNS information, even when using a VPN.
  • Use of unsecured or outdated DNS protocols – such as plain DNS without encryption, can allow attackers to intercept and alter DNS queries.

In the event of detecting a leak during an online test, it is highly recommended to change DNS settings to avoid potential privacy issues.

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