ZeroToVPN
DNS Leak Test

DNS Leak Test — Is Your VPN Leaking?

Check if your DNS requests are leaking outside your VPN tunnel. DNS leaks expose the websites you visit to your ISP, even when connected to a VPN.

DNS Leak Test

Check if your DNS requests are leaking outside your VPN tunnel. DNS leaks expose the websites you visit to your ISP, even when connected to a VPN.

What Is a DNS Leak?

When you use a VPN, all your internet traffic — including DNS requests — should go through the encrypted VPN tunnel. A DNS leak occurs when your DNS queries bypass the VPN and go directly to your ISP's DNS servers. This means your ISP can still see which websites you visit, defeating the purpose of using a VPN.

Why Are DNS Leaks Dangerous?

DNS leaks compromise your privacy because your ISP can log every website you visit. In countries with strict internet censorship, this could put you at risk. Even in free countries, ISPs can sell your browsing data to advertisers.

How to Prevent DNS Leaks

Use a VPN with built-in DNS leak protection and a kill switch. Top VPNs like NordVPN run their own private DNS servers and automatically block DNS requests from leaving the VPN tunnel.

Frequently Asked Questions

Best VPNs with DNS Leak Protection

ProtonVPN website screenshot
#1クーポン

ProtonVPN

4.5
から
$2.49
/月

Swiss-based VPN with strongest privacy focus and free tier.

15,000
サーバー
120
10
デバイス
速度
88%
セキュリティ
99%
Netflix トレント ノーログ無料プラン
レビュー
Mullvad VPN website screenshot
#2

Mullvad VPN

4.5
から
$5
/月

Privacy-first VPN with anonymous account creation and flat pricing.

800
サーバー
43
5
デバイス
速度
91%
セキュリティ
99%
トレント ノーログ
レビュー
#1 Pick
NordVPN website screenshot
#3編集者のおすすめクーポン

NordVPN

4.8
から
$2.99
/月

Industry-leading VPN with exceptional speed and security features.

7,400
サーバー
118
10
デバイス
速度
94%
セキュリティ
98%
Netflix トレント ノーログ
レビュー