connectivity-test

Honest OpenVPN endpoint benchmarker & config optimizer — test .ovpn files, pick the fastest working VPN server, emit a safe optimized config. Pure-Python CLI, cross-platform.

Self-hosted echo/sound-test service for Telegram voice & video calls — answers, echoes your audio back, and records it, so you can verify calls work over flaky links, DPI firewalls, or proxies. Built on TDLib + tgcalls.

Zero-dependency PowerShell tool for ranking Amazon Lightsail Regions and validating real instance IP connectivity.

免费模型清单调研与连通性测试台：面向自部署自用的选型者，汇总 ModelScope/OpenRouter 免费模型、魔粒费用与编程基准，附纯标准库 Web 连通性测试 UI，运行 start_webui.bat 即用

持续检查代理节点能否真正打开目标网页，查看连接失败的原因、历史记录和可用率。