As we all know, Google treats sub-domains as completely separate domains so we have to fight for both, to get ranked in search results.One of my client's websites had example.com and blog.example.com. So to keep all the stuff in one place, we redirected blog.example.com to example.com/blog/But in this case, we lost our Pagerank and are still wondering where we went wrong.  Maybe it just takes more time to show up. What is the reason behind this?
Why do I lose my Pagerank after a 301 redirect?
google;301 redirect;pagerank