Оптимизация скорости загрузки сайта

В .htaccess
Включить кэширование:

<IfModule mod_expires.c>
ExpiresActive On
ExpiresDefault "access plus 3600 seconds"
ExpiresByType image/x-icon "access plus 29030400 seconds"
ExpiresByType image/jpeg "access plus 29030400 seconds"
ExpiresByType image/png "access plus 29030400 seconds"
ExpiresByType image/gif "access plus 29030400 seconds"
ExpiresByType text/css "access plus 604800 seconds"
ExpiresByType text/javascript "access plus 2419200 seconds"
ExpiresByType application/x-javascript "access plus 604800 seconds"
</IfModule>

Включить Gzip сжатие:

AddOutputFilterByType DEFLATE text/plain
AddOutputFilterByType DEFLATE text/html
AddOutputFilterByType DEFLATE text/xml
AddOutputFilterByType DEFLATE text/css
AddOutputFilterByType DEFLATE application/xml
AddOutputFilterByType DEFLATE application/xhtml+xml
AddOutputFilterByType DEFLATE application/rss+xml
AddOutputFilterByType DEFLATE application/javascript
AddOutputFilterByType DEFLATE application/x-javascript

Проверить скорость загрузки: http://gtmetrix.com
Настройка gzip: http://eax.me/mod-gzip-config/
Проверка gzip: http://www.feedthebot.com/tools/gzip/
Часть взята отсюда: http://blog.wadmin.ru/2011/01/caching-content/

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