When you browse the Internet using a VPN or a proxy, you expect your identity and IP address to remain hidden. However, if a DNS leak occurs, your privacy can be seriously compromised.
What is a DNS Leak?
A DNS leak happens when, despite using a secure connection, the requests your device makes to resolve domain names (like www.example.com) are sent through your Internet Service Provider's (ISP) servers instead of passing through your VPN's secure servers.
This means that even though your traffic is encrypted, your ISP (and potentially other entities) can see which websites you are visiting. It can also reveal your public IP address and approximate location.
Why is a DNS Leak Dangerous?
A DNS leak puts your privacy at risk for several reasons:
- Your ISP can log your browsing history.
- Websites may detect your real IP, compromising your anonymity.
- You may be vulnerable to tracking or online censorship attacks.
How to Detect a DNS Leak?
Detecting a DNS leak is relatively easy if you use the right tools. Here are some steps you can follow:
- Connect to your VPN or proxy as usual.
- Visit a DNS testing service, such as the one we offer at Cualesmiip.com.
- Check the results. If you see DNS servers that belong to your ISP, you are likely experiencing a leak.
Some popular tools to check for DNS leaks are:
How to Fix a DNS Leak?
If you detect a leak, here are some measures to fix it:
- Change your device's DNS settings to use public DNS servers like Cloudflare (1.1.1.1) or Google (8.8.8.8).
- Use a VPN that offers built-in DNS leak protection.
- Set up a firewall to force all traffic through the VPN only.
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DNS leaks are a silent but serious threat to your online privacy. Knowing how to detect and fix them is essential if you want to browse securely. We invite you to use our tool to check your public IP address and verify if your connection is truly private.
