What the tests do
When you open a test, your browser checks your public IP address, approximate location and network provider, looks up a few unique test addresses to see which DNS servers answer for you, and checks which IP addresses your browser exposes through WebRTC. Some tools also measure how fast public DNS servers respond, or look up DNS records you enter.
What we store
We don't save your test results and we don't link them to you. Results are shown in your browser and disappear when you close the page.
Services the tests use
- Cloudflare hosts the site and processes basic request data (such as your IP address) to deliver pages and stop abuse.
- bash.ws runs the DNS leak lookups and sees which DNS servers asked for the test addresses.
- proxycheck.io receives your IP address from our server to check whether it belongs to a VPN or proxy.
- Google and Cloudflare STUN servers are contacted by your browser for the WebRTC check.
- ipify is used by the IPv6 test to see whether you have an IPv6 address.
- Public DNS providers (Google, Cloudflare, Quad9, OpenDNS, AdGuard, AliDNS) receive queries from the DNS speed, propagation and DNSSEC tools.
- Google Fonts serves the site's fonts.
Affiliate links
Some links, such as those to NordVPN, are affiliate links. If you buy through them we may earn a commission at no extra cost to you. The VPN provider may set its own cookies once you visit its site.
Contact
Questions about this policy: hello@dnsleakchecker.com