实现域名的统一，即使得xsdou.com转向www.xsdou.com,据说对于seo也有些好处，代码 RewriteEngine on RewriteCond %{HTTP_HOST} ^xsdou.com [NC] …

RewriteEngine on RewriteCond %{HTTP_REFERER} !^$ [NC] RewriteCond %{HTTP_REFERER} !www.elinkhost\.com [NC] Rew…