User-agent: * 
Disallow: /manager/
Disallow: /core/
Disallow: /connectors/
Disallow: /index.php
Disallow: /source/
Disallow: *?*
Disallow: *utm*=       

User-agent: Yandex
Disallow: /manager/
Disallow: /core/
Disallow: /connectors/
Disallow: /index.php
Disallow: /source/
Disallow: *?*
Disallow: *utm*=       
Clean-param: cultureKey 

User-agent: Google 
Disallow: /manager/
Disallow: /core/
Disallow: /connectors/
Disallow: /index.php
Disallow: /source/
Disallow: *?*
Disallow: *utm*=