Network Checker - test connect

Know your network. One tap. Net Checker runs a comprehensive suite of network diagnostics across 60+ global targets — all with a single button press. No configuration, no complexity. Just tap and understand exactly how your connection performs. What Net Checker tests: 🔌 HTTP Connectivity — Tests 28 endpoints across 14 major global services on both plain HTTP and HTTPS. 🌐 TCP Connectivity — Non-HTTP services across 5 continents: SMTP, WHOIS, IRC, FTP. 📡 UDP Reachability — Protocol-aware UDP for DNS (Google, Cloudflare, Quad9, DNSPod), NTP, and STUN. 🔍 Advanced Detection — DNS resolution, port scanning, and SOCKS5 proxy detection. ⚡ Bandwidth Measurement — Download/upload throughput in Mbps. Features: - ⚡ One-tap operation — complexity in backend, simplicity for user - 📊 Protocol-level breakdown — see exactly what passed/failed - 🕒 Session history — every run saved, revisit anytime - 📍 Connection details — local IP, public IPv4/v6, gateway, network type (WiFi/4G/5G) - 🔄 Network change detection — WiFi↔mobile switch triggers retest prompt - 🌙 Dark theme Privacy: Only INTERNET, ACCESS_NETWORK_STATE, ACCESS_WIFI_STATE. No personal data. No account needed.