.htaccess

ErrorDocument 400 /errores/400.php
ErrorDocument 401 /errores/401.php
ErrorDocument 403 /errores/403.php
ErrorDocument 404 /errores/404.php
ErrorDocument 500 /errores/500.php

Options -Indexes

Options +FollowSymlinks

RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME}\.html -f
RewriteRule ^(.*)$ $1.html

RewriteEngine on
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME}\.php -f
RewriteRule ^(.*)$ $1.php

# 1 Año
<FilesMatch "\.(ico|pdf|flv)$">
Header set Cache-Control "max-age=29030400, public"
</FilesMatch>
# 1 Semana
<FilesMatch "\.(jpg|jpeg|png|gif|swf)$">
Header set Cache-Control "max-age=604800, public"
</FilesMatch>
# 2 Días
<FilesMatch "\.(xml|txt|css|js)$">
Header set Cache-Control "max-age=172800, proxy-revalidate"
</FilesMatch>
# 1 Minuto
<FilesMatch "\.(html|htm|php)$">
Header set Cache-Control "max-age=60, private, proxy-revalidate"
</FilesMatch>

# Activa la compresion en el servidor
AddOutputFilterByType DEFLATE text/html text/plain text/xml text/css application/x-javascript