DNS Leak Test
Compare DNS resolver signals with the network you expect while using a VPN. Understand third-party probes, unavailable results and browser DNS limits.
Check DNS privacy
Run this while connected to your VPN or normal connection. Resolver detection uses a one-time external DNS probe.
How to use this tool
- Connect to the VPN or network configuration you want to check.
- Run the test and note whether a resolver response is available.
- Compare the reported provider with your VPN’s documented DNS configuration; repeat after changing settings.
What the results mean
A resolver address different from your public IP is normal. A third-party resolver can be intentional, especially with browser secure DNS. An unavailable probe is inconclusive, and a result without reported client subnet is not proof that every DNS request is private.
Common problems
If the probe fails, a blocker, firewall, network filter or the probe service itself may be responsible. Do not disable protections simply to obtain a green result. Check the VPN’s DNS protection settings and use another trusted test for comparison.
Privacy and data use
This is a network test. It contacts the MyLaptopTools network endpoint and third-party resolver probes at edns.upset.dev or a random subdomain of edns.ip-api.com. Those services receive connection metadata. Results are not included in sharing buttons.
Frequently asked question
Does an unexpected resolver prove a DNS leak?
No. Compare it with the DNS provider you intended to use. Browser secure DNS, VPN settings and corporate networks can route DNS differently. A single probe cannot see every application’s traffic.