镜像前的域名
http://flowerpassword.sinaapp.com/html/image.php?filetype=JPEG&dpi=72&scale=1&rotation=0&font_family=Arial.ttf&font_size=10&text=15651256113&thickness=30&code=BCGcode11

配置镜像之后的域名
http://7xojci.com1.z0.glb.clouddn.com/html/image.php?filetype=JPEG&dpi=72&scale=1&rotation=0&font_family=Arial.ttf&font_size=10&text=15651256113&thickness=30&code=BCGcode11

目标服务器日志查到的域名
[22/Nov/2015:08:15:21 +0800] /html/image.php 200 11734 4 1367
flowerpassword.sinaapp.com "GET HTTP/1.0" "-" "qiniu-imgstg-spider-1.0" 183.136.139.14.1448151321567426 yq22