http://astrillrcpusdryujyzbsl7wsugvyfc5s6veyrpkojiqbrorgkfdxvid.onion/vpn-leak-test
When your operating system, even while connected to an anonymous network, continues to use its default DNS servers instead of the anonymous DNS servers assigned to your computer, it results in DNS leaks. These leaks compromise the effectiveness of the anonymous network and pose a significant threat to your privacy.