User-agent: *
Disallow: /wp-admin/
Disallow: /wp-admin/admin-ajax.php
Disallow: /?ivrating
Disallow: /*comment-page
Disallow: /?sort
Disallow: /?limit
Disallow: /?tag
Disallow: /?ref
Disallow: /?page
Disallow: /?attribute
Disallow: /#comments
Disallow: /comment-page-2/

User-agent: AhrefsBot 
Disallow: /wp-admin/
Disallow: /wp-admin/admin-ajax.php
Disallow: /wp-content/

User-agent: Googlebot
Disallow:

User-agent: Googlebot-image
Disallow:

User-agent: FacebookBot
Crawl-delay: 10