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About
This tool performs comprehensive DNS and network diagnostics across multiple protocols:
- DNS Resolver Tests: IP detection, DoH, DoT, DoQ, DNSSEC, ECS, NXDOMAIN, Caching, TTL
- Network Tests: IPv4/IPv6 reachability, latency, jitter, packet loss, HTTP/3 support
- Security Tests: WARP/VPN detection, EDNS Client Subnet leakage
- DNS over HTTPS (DoH) - RFC 8484
- DNS over TLS (DoT) - RFC 7858
- DNS over QUIC (DoQ) - RFC 9250
All tests are performed from your browser, ensuring privacy and allowing you to test from your actual network location.