Robots.txt для MODX, правильно!

User-agent: * 
Disallow: /assets/cache/ 
Disallow: /assets/docs/ 
Disallow: /assets/export/ 
Disallow: /assets/import/ 
Disallow: /assets/modules/ 
Disallow: /assets/plugins/ 
Disallow: /assets/snippets/ 
Disallow: /install/ 
Disallow: /manager/ 
Disallow: /? 
Disallow: /*? 
Disallow: /index.php 
Host: sitename.com
Sitemap:http://sitename.com/sitemap.xml 

User-agent: * 
Disallow: /manager/ 
Disallow: /assets/components/ 
Disallow: /core/ 
Disallow: /connectors/ 
Disallow: /index.php 
Disallow: *? 
Host: sitename.com
Sitemap: http://sitename.com/sitemap.xml