.htaccess

AddDefaultCharset utf-8
DirectoryIndex en_obras.html
RewriteEngine On
#Esto es un comentario
#RewriteBase /

RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME}.php -f
RewriteRule ^(.*)$ $1.php
RewriteRule ^bd-(.*)-(.*)$ $2.php
RewriteRule ^dominio-extension-(.*) showInfoExt.php?ext=$1
RewriteRule ^contacto-(.*) contacto.php?ext=$1

#Redirigir un directorio a otra parte (ideal para Prestashop)
RedirectMatch 301 /es/(.*) http://www.midominio.com/$1
________________________________________________________
Bloquear a bots y spiders no deseados:

### block bad bots
Options All -Indexes
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} ^$ [OR] # Esto es para los agentes de usuario en blanco
RewriteCond %{HTTP_USER_AGENT} ^spider$ [OR]
RewriteCond %{HTTP_USER_AGENT} ^robot$ [OR]
RewriteCond %{HTTP_USER_AGENT} ^crawl$ [OR]
RewriteCond %{HTTP_USER_AGENT} ^(.*)AhrefsBot(.*) [OR]
RewriteCond %{HTTP_USER_AGENT} ^AhrefsBot/5.0 [OR]
RewriteCond %{HTTP_USER_AGENT} ^discovery$ [OR]
RewriteCond %{HTTP_USER_AGENT} ^Wget [OR]
RewriteCond %{HTTP_USER_AGENT} 360Spider [OR]
RewriteCond %{HTTP_USER_AGENT} Ezooms/1.0 [OR]
RewriteCond %{HTTP_USER_AGENT} MJ12bot/v1.4.4
RewriteRule ^(.*)$ <a href="http://no.access/" rel="nofollow" target="_blank" >

http://no.access/</a>  ### una URL que no existe #######

Más información en: 

http://www.apañados.es/tenemos-que-apanar/internet