Is that open wifi really letting you access the web? Network Tester quickly validates you're connected to the real web (by downloading a very small dedicated file and checking its content). If the hotspot is actually redirecting you to a billing portal, you'll know instantly.
For troubleshooting any data connection, you can also validate hostname resolution and TCP connection.
And for statistics and fun sake, Network Tester lets you measure downlink speed on a 10K, 100K and 1M HTTP download.
Network tester is open-source.
是开wifi真的让你访问网站的？网络测试仪快速验证您连接到真正的网络（通过下载一个很小的专门文件，并检查其内容）。如果热点实际上是你重定向到一个计费门户网站，你会立刻知道。
对于故障排除任何数据连接，您还可以验证主机名解析和TCP连接。
而对于统计数据和乐趣的缘故，网络测试仪用于测量下行速度在10K，100K和1M HTTP下载。
网络测试仪是开源的。

- change hosting for downloads (fix broken 1MB download)