mod_deflate网页压缩问题

mod_deflate网页压缩问题

已经把压缩模块加到了配置文件中,如下:
<VirtualHost 192.168.30.51:80>
    DocumentRoot /usr/html/zhcw07
    ServerName www.xxxx.com
    DirectoryIndex  index.htm
    CookieTracking on
    CookieName ZHCW
    CookieExpires "6 months"
    AddOutputFilterByType DEFLATE text/html text/plain text/xml
    <IfModule mod_deflate.c>
    AddOutputFilter DEFLATE css js txt htm
    </IfModule>
    CustomLog "|/usr/local/sbin/cronolog /var/log/zhcw/zhcw_access_log.%Y%m%d" combined

</VirtualHost>

我加的是否正确?怎样看压缩已经起作用?请高手赐教谢谢!
高手快来啊