Compare the speed of public DNS resolvers from your network and see your IP's reverse DNS.
⚠️ What this test does NOT do
A traditional "DNS leak test" depends on a dedicated test domain with its own authoritative name server, capable of logging which resolver a query actually came from. This site is 100% static (no server of its own), so that exact check isn't technically possible here.
What we do instead: we query, directly from your browser, the main public DNS resolvers (Cloudflare and Google) via DNS-over-HTTPS and compare each one's response time from your network — useful for knowing which resolver responds fastest for you. We also show your public IP's reverse DNS.
🌐 Your IP and ISP
Public IP
loading...
ISP
—
Reverse DNS (PTR)
—
⚡ Public Resolver Comparison
Response time to resolve mvsp.com.br from your network, right now.
Cloudflare (1.1.1.1)DoH JSON
—
Google (8.8.8.8)DoH JSON
—
Frequently asked questions
Is this a real "DNS Leak Test"?
Not in the strict sense. A real leak test checks which resolver your operating system uses by default during ordinary browsing, which requires your own DNS infrastructure with query logging. Here we only show a speed comparison between known public resolvers and your IP's reverse DNS, transparently about this limitation.
Why are Cloudflare and Google different in speed?
Both use a global anycast network, but the fastest route to you depends on peering, your ISP's location and momentary congestion — the "winner" can even change between runs.
How do I run a complete DNS leak test?
Dedicated tools with their own infrastructure (test domains with exclusive authoritative servers) can perform this full check. That's outside the scope of a 100% static site like this one.
🍪 We use cookies for access analytics via Google Analytics (GA4).
No personal data is collected or sold. By continuing to browse, you agree to the use of analytics cookies.
Learn more.