Tokyo VPN Speed Monitor - Performance Dataset

This dataset contains 1245 automated measurements of VPN performance from Tokyo, Japan, collected over 3+ weeks. Key Features 15 VPN providers tested Measurements every 6 hours Time-series data (December 2024 - December 2025) Statistical analysis (Coefficient of Variation for stability) Data Format CSV format with the following columns: timestamp: Measurement datetime vpn_name: VPN provider name download_speed: Download speed (Mbps) upload_speed: Upload speed (Mbps) latency: Latency (ms) cv: Coefficient of Variation (%) Live System Dashboard: https://www.blstweb.jp/network/vpn/ Source Code: https://github.com/hmy0210/vpn-stability-ranking VPN Leak Detection Tool: https://www.blstweb.jp/network/vpn/security-diagnosis/ Methodology Automated testing using Google Apps Script. All measurements are performed from Tokyo, Japan. Statistical analysis includes Coefficient of Variation (CV) for stability assessment. Use Cases VPN performance analysis Network research Time-series forecasting Comparative studies Educational purposes License MIT License - Free to use for any purpose including commercial use.