Description
Check if your DNS requests are leaking outside your VPN tunnel. Run standard or extended tests to verify DNS privacy.
No-Login Task
"Detect DNS leaks"
Editorial Review & Verification
Hands-on VerifiedDetecting unencrypted or misconfigured DNS queries leaking outside of active VPN or proxy tunnels.
+ Key Strengths (Pros)
- ✓ Generates randomized subdomain probes (*.test.dnsleaktest.com) to accurately expose upstream recursive DNS resolvers
- ✓ Detailed identification of resolver IP addresses, hostnames, Internet Service Providers (ISP), and geolocation flags
- ✓ Completely free and ad-free security utility provided by IVPN with self-hosted Matomo analytics
− Limitations (Cons)
- − Does not provide automated JSON or CSV export for automated network auditing pipelines
Deep Privacy & Sandbox Audit & Product Power & Utility Review
Probes are sent to unique test subdomains (*.test.dnsleaktest.com) to detect upstream DNS resolver leaks. Analytics are limited to self-hosted Matomo (/ana/matomo.php) without third-party advertising or commercial tracking cookies.
Executed standard DNS leak test in 0 ms main thread freeze and 0.03 CLS; identified 4 upstream China Telecom recursive resolvers.
- ✓ Temporary stateless processing without user profile retention
- ✓ No persistent identity linking or mandatory account creation
- ✓ Requires network connection to execute backend tasks
- ✓ Audited privacy policy protecting user confidentiality
- ✓ No mandatory email, telephone, or identity correlation
- ✓ Strict limits on operational telemetry
- ✓ Proprietary frontend and application service
- ✓ Zero-login functionality verified by NoLoginTools manual audit
- ✓ Runtime network egress and cookies verified via automated scanner
- ✓ Tool is online and accessible
- ✓ Monitored continuously by NoLoginTools automated prober
- ✓ No scheduled downtime or access gating detected
NoLogin Lab™ Verified Telemetry & Empirical Audit
Stateless execution; no user account or tracking identifier recorded on remote infrastructure.
Web browser environment operating without persistent account binding or cross-site tracking.
Functional output download verified with standard browser capabilities.
Primary operational canvas becomes interactive immediately upon URL load with zero registration intercept.
Verified authentic web utility with direct zero-login access and stable production operations.
Verification Details
Probes are sent to unique test subdomains (*.test.dnsleaktest.com) to detect upstream DNS resolver leaks. Analytics are limited to self-hosted Matomo (/ana/matomo.php) without third-party advertising or commercial tracking cookies.
Tags
Health History
FAQ
- Does DNS Leak Test require an account?
- No. DNS Leak Test has been verified by nologin.tools to provide its core functionality — Detect DNS leaks — without requiring any login or signup.
- Is DNS Leak Test free to use?
- DNS Leak Test is listed on nologin.tools as a tool you can use without creating an account. Check the tool's own site for details on pricing or premium features.
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