I have an amazon niche site and a subdomain is not getting indexed. I submitted it many times to google but google is not indexing it. What can i do ? But i am sure its not disallowed at robots file. What can be the problem ? My second question: another subdomain on a niche site for mobile offers is on 29 google germany. What can i do to rank it to page 1 ? What will be the best seo ?