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.