WordPress 设置浏览器端缓存，加快访问速度，在网站根目录 .htaccess 文件中添加以下代码：

#Expire Header

ExpiresActive on 

ExpiresByType text/css "access 1 month"

ExpiresByType text/plain "access 2 days"

ExpiresByType text/html "access 2 days"

ExpiresByType application/javascript "access 1 month"

ExpiresByType image/jpeg "access 1 month"

ExpiresByType image/x-icon "access 1 month"

ExpiresByType image/gif "access 1 month"

ExpiresByType image/png "access 1 month"

ExpiresByType image/ico "access 1 month"

ExpiresByType application/pdf "access 1 month"

ExpiresByType application/x-shockwave-flash "access 1 month"

ExpiresDefault "access 1 month"