title: How to know who is the owner of (secondary) Tumblr blog? How to know followers blogs?
body: <p>Definitions, infos in Tumblr before my question to be all clear:</p>
  
  <ol>
  <li>In Tumblr all user account had a primary blog, for example noticiasdepoliticahoy.tumblr.com .</li>
  <li>This user can create secondary blogs, what had a limitations: cannot follow as secondary blog other blog, cannot like this secondary blog other blog, just the primary account user.</li>
  </ol>
  
  <p>My questions: </p>
  
  <p>Q1: how I know when I following any Tumblr blog, this is someone's primary blog or secondary blog?</p>
  
  <p>Q2: If I follow the user's secondary blog, how I know this user primary blog name?</p>
  
  <p>Real world example with example Tumblr blog names:
  1. I following ABC1.tumblr.com blog
  2. I following ABC2.tumblr.com blog
  3. DEFG3.tumblr.com user started following me
  4. HIJK4.tumblr.com user started following me</p>
  
  <p>How I know who is the owner of ABC1.tumblr.com and ABC2.tumblr.com blog?</p>
  
  <p>If I check blog with <a href="http://postlimit.com" rel="nofollow">http://postlimit.com</a>, I can get informations what maybe helps to detect this blog primary or secondary.</p>
  
  <p>Check this, 3queries, first maybe primary account and 2 secondary:</p>
  
  <pre><code>URL:                http://whisperedepiphanies.tumblr.com/  
  Username:           whisperedepiphanies
  Blog Title:         ~whispered epiphanies~
  Total Posts:        6539
  Allows Ask:         Yes
  Allows Ask (anon):  Yes
  Number of Likes:    6685
  Shares Likes:       Yes
  
  
  URL:                http://noticiasdepoliticahoy.tumblr.com/    
  Username:           noticiasdepoliticahoy
  Blog Title:         Noticias de Política
  Total Posts:        1169
  Allows Ask:         No
  Allows Ask (anon):  No
  Number of Likes:    Not Shared
  Shares Likes:       No 
  
  URL:                http://lobo-de-luna.tumblr.com/     
  Username:           lobo-de-luna
  Blog Title:         In ignota
  Total Posts:        2011
  Allows Ask:         Yes
  Allows Ask (anon):  Yes
  Number of Likes:    Not Shared
  Shares Likes:       No 
  </code></pre>
  
  <p>So, secondary account now not had share likes.
  But how to know - back to my example - who is the owner of secondary blog?</p>
  
  <p>For example if I want only follow who is following me, but I following the user's secondary blog and the user started following me, I will unfollow his blog because not his primary blog and I don't know who is the owner of that not primary blog.</p>
  
  <p>You clearly understand what I want to know?</p>
  
  <p><em><strong>Summary</em>: how I can know if I follow any user's secondary blog, then this owner of secondary blog start following me (but of course I don't following his primary blog what same as his user account, blog name) ?</strong></p>