DNSLeakTest.com vs HackMyIP: DNS Leak Testing Compared (2026)
Short answer
For a DNS leak test, use DNSLeakTest.com. When we checked both sites on 25 October 2026, DNSLeakTest.com ran a real DNS leak test and listed every resolver that answered. HackMyIP's DNS page only checks that public DNS-over-HTTPS resolvers are reachable and says itself that it cannot detect a DNS leak. Both sites have a WebRTC leak test. HackMyIP adds tools DNSLeakTest.com does not have, such as a DNS record lookup, a VPN and proxy check, and a port check.
Checked on 25 October 2026 with curl: dnsleaktest.com's homepage, its results page, its "Standard vs Extended" and WebRTC pages, plus HackMyIP's own tool pages. Both sites can change, so re-test before relying on a single row.
Feature comparison
| Check | DNSLeakTest.com | HackMyIP |
|---|---|---|
| DNS leak test | Yes. Standard test (6 queries) or extended test (36 queries); lists each resolver's IP, hostname, ISP and country | No. Its DNS page only checks that DNS-over-HTTPS resolvers are reachable |
| WebRTC leak test | Yes (separate page) | Yes (/webrtc) |
| Shows your public IP | Yes, with city and country | Yes, with location, ISP and ASN |
| DNS record lookup (A, AAAA, MX, TXT, NS, SOA) | Not on its site | Yes (/dns) |
| VPN / proxy / datacenter verdict | Not on its site | Yes (/proxy) |
| Open port check, email breach check, browser fingerprint | Not on its site | Yes (/ports, /breach, /fingerprint) |
| Free API, no key | Not on its site | Yes (/api) |
| Analytics on the page | Matomo, served from its own domain | Google Analytics |
| Run by | IVPN (a VPN provider) | HackMyIP |
Where DNSLeakTest.com is better
A real DNS leak test. DNSLeakTest.com has your browser resolve a series of test names and lists every DNS server that answered, with its IP, hostname, ISP and country. If you are on a VPN and any of those servers is not your VPN provider's, your DNS is leaking. The standard test sends 6 queries; the extended test sends 36 to find every server behind your resolver. HackMyIP has no equivalent.
First-party analytics. Its pages load Matomo from dnsleaktest.com itself. HackMyIP uses Google Analytics.
Where HackMyIP is better
DNS record lookups. HackMyIP's DNS lookup reads A, AAAA, MX, TXT, NS and SOA records for any domain, which DNSLeakTest.com does not offer.
Checks beyond DNS. A VPN and proxy check, a real server-side open port check, an email breach check, a browser fingerprint test and a free no-key JSON API.
Which one should you use?
To test a VPN for DNS leaks, run DNSLeakTest.com's standard test, or the extended test if you want to see every resolver. Both sites can check WebRTC. Use HackMyIP for what DNSLeakTest.com does not cover: DNS record lookups, VPN and proxy detection, ports and breaches.
Frequently Asked Questions
What is the difference between DNSLeakTest.com and HackMyIP?
DNSLeakTest.com, from IVPN, is a focused leak tester: a standard and an extended DNS leak test plus a WebRTC leak test. HackMyIP is a wider toolkit with a WebRTC leak test, DNS record lookup, VPN and proxy check, port, breach and fingerprint checks and a free API. On 25 October 2026 HackMyIP had no real DNS leak test.
Is DNSLeakTest.com or HackMyIP better for detecting DNS leaks?
DNSLeakTest.com. It lists the DNS servers that answered its test lookups, which is how a DNS leak test works. HackMyIP's DNS page only checks that public DNS-over-HTTPS resolvers are reachable and says it cannot detect a DNS leak.
What is the difference between the standard and extended test?
On DNSLeakTest.com the standard test sends 1 round of 6 queries, which it says is enough to find a leak. The extended test sends 6 rounds of 6 (36 queries) to discover every DNS server behind your resolver, and takes longer.
Does DNSLeakTest.com check WebRTC leaks?
Yes. It has a separate WebRTC leak test page that shows your public IP next to the local and public IPs WebRTC exposes. HackMyIP's WebRTC leak test does the same kind of comparison.
Is HackMyIP a good DNSLeakTest.com alternative?
Not for DNS leaks: use DNSLeakTest.com for those. HackMyIP is a useful companion for DNS record lookups, VPN and proxy detection, port and breach checks.