GPS 座標テスト
明示的なアクションで位置情報を要求し、精度と高度を検査し、座標を保存せずにコピーします。
テストインターフェース
[スタート] を押した後、ブラウザーが許可を求める場合があります。精度はデバイスによって報告される推定値です。数値が小さいほど良いです。屋内での測定値は、多くの場合、はるかに正確ではありません。
このツールの使用方法
- Click Get my location and choose Allow in the browser prompt.
- Wait for the first position and read latitude, longitude, accuracy, and time.
- Use Watch location for repeated readings and observe accuracy changes.
- Copy coordinates or open a map link explicitly if desired, then stop watching.
広告
技術解説
The Geolocation API uses GPS, Wi-Fi, cellular, or IP-derived positioning depending on the device and operating system. accuracy is a radius in metres reported by the provider, not a guarantee of correctness.
Indoor readings can be poor. Altitude is only available when the provider supplies it and may be unreliable. The browser may return a cached position; the time-to-first-fix shown here is the page’s request time, not a hardware warm-start measurement.
トラブルシューティング
Location permission is denied
Reset the location permission for this site in the browser settings and try again.
Position is inaccurate
Move outdoors, wait for more satellites, and avoid using a VPN for network-based positioning.
No position is returned
Some desktops lack location providers. Check operating-system location services.
Requests time out
Try again in an area with better signal and keep the page in the foreground.
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よくある質問
広告