User-agent: * 
Disallow: /wp-admin
Disallow: /wp-includes
Disallow: /wp-content/mu-plugins
Disallow: /wp-content/plugins
Disallow: /wp-content/backup-db
Disallow: /wp-content/themes
Disallow: /wp-content/upgrade
Disallow: /wp-content/cache
Disallow: /wp-content/wp-cache-config.php
Disallow: /wp-content/advanced-cached.php