查看一個IP共有多個網站在用

For those on shared hosting, myIPneighbors IP search is a great way to find out who your neighbors are or just to see how many other websites your hosting company hosts your server.

Is your website packed into a crowded host with hundreds of other sites? Or is there questionable content being hosted side by side with your site? If so, it may be time to look for a better host.

查了一下 hinet 的

也不是百分之百的準

還有 http://webhosting.info/ 有相同的功能