Web hosting providers offer services such as hosting multiple domains in one account. Then my concern is about seo friendliness. say the main domain of my account is maindomain.com on which I have added an addon domain say domain2.com. That means cpanel will generate domain2.maindomain.com and the contents of domain2.com will be practically stored into a subfolder in maindomain.com.
Now, assume both maindomain.com and domain2.com have same structure both optimized for seo same way. My question is that would maindomain.com links be more seo friendly due to that fact that maindomain.com is the mani domain of my account?