我在 BlueHost（“专业”计划）上有一个经常关闭的网站。火狐说：
The connection has timed out
The server is taking too long to respond.
The site could be temporarily unavailable or too busy. Try again in a few moments.
If you are unable to load any pages, check your computer's network connection.
If your computer or network is protected by a firewall or proxy, make sure that Firefox is permitted to access the Web.
但是，跟踪路由很好：
1 <1 ms <1 ms <1 ms speedport.ip [192.168.2.1]
2 39 ms 40 ms …我不时收到来自 Google bot 的消息，说它无法访问我的网站。
在过去 24 小时内，Googlebot 在尝试检索您网站的 DNS 信息时遇到了 1 个错误。您站点的 DNS 查询的总体错误率为 50.0%。
我尝试了“Fetch as Google”选项，但得到了一个橙色感叹号：
http://visualbioinformatics.com/
URL 和提交到索引的链接页面
此 URL 重定向到：http : //www.visualbioinformatics.com
Downloaded HTTP response:
HTTP/1.1 301 Moved Permanently
Date: Mon, 02 Nov 2015 08:34:58 GMT
Server: Apache
Location: http://www.VisualBioinformatics.com/
Content-Length: 318
Keep-Alive: timeout=10, max=500
Connection: Keep-Alive
Content-Type: text/html; charset=iso-8859-1
X-Pad: avoid browser bug
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>301 Moved Permanently</title>
</head><body>
<h1>Moved Permanently</h1>
<p>The document has moved <a href="http://www.VisualBioinformatics.com/">here</a>.</p>
<hr>
<address>Apache …