Internet Connection Monitor

The Internet Connection Monitor continuously checks whether your device can actually reach the internet — not just whether it thinks it has a network, which is the flaw in a plain 'online/offline' indicator that stays green while your Wi-Fi router has quietly lost its uplink. On every interval it makes a tiny reachability request to well-known always-on hosts, measures the round-trip latency, and records the result. The moment those checks start failing, it flags you offline, logs the outage with a timestamp, and — if you want — sounds an alarm so you notice immediately instead of ten minutes into a dropped call.

Everything runs locally in your browser. There is no account, no server storing your uptime, and no data leaving your device beyond the small reachability pings themselves. It is built for the situations where a silent dropout costs you: monitoring a flaky home connection, keeping an eye on Wi-Fi during an important upload, or just proving to your ISP that the connection really does drop every afternoon — the downtime log, with times and durations, is the receipt.