Hello I have a quick question. I have a business site that has blog which is hosted on WP and having subdomain i.e. blog.domain.com. What I have seen is that blog is receiving wow hits but what I have been thinking is that it is only beneficial for blog, but not for the website. When I used a site:blog.domain.com, it supply pages associated with the blog not with the original website. My question is that if Google treated sub domain a separate domain then how Matt says that the original domain gets the benefit of blog traffic? which is in my viewpoint is totally nonsense. WP is totally a separate platform which is not associated and hosted where original site is? WP only deployed on our server and ran with the hosting we provide. But the content of the blog is basically stored on WP. Very confusing ... tell me if you have any thing you feel about.
If your blog is hosted at wordpress dot com and not hosted on your own domain, that is correct. Your link to blog.example.com is redirecting visitors to the wordpress dot com domain. It is pretty easy to move it all to your own site.
When I used a site:blog.domain.com, it supply pages associated with the blog not with the original website.
that's the way it works. if you want to see the index for your main site you could do a search like: site:www.example.com
or if the canonical hostname for your main site is example.com: site:example.com -site:blog.domain.com
as blog is treated separately
if you treat your blog separately (with minimal or no interlinking) then google will also treat it separately, other than the minimal connection of the domain name. a good example of this is blogspot, where all the subdomains are essentially islands of content with relatively little interlinking. on the other hand craigslist uses cityname.craigslist.org hostnames which are all interlinked and google probably views craigslist.org as more of a unified site.
Your link to blog.example.com is redirecting visitors to the wordpress dot com domain.
if this is done correctly, there is no redirect - it happens in the domain name resolution where the DNS translates blog.example.com to an IP address. the fact your blog's IP address is hosted by wordpress is about as irrelevant as your main site being hosted by godaddy (or whatever.)
very good explanation of my queries. But still I have a question on my mind. And that is, shall I get the benefit of blog traffic for my original domain i.e. www.123fjkdfj.com ? because as far as I have experienced that analytics treated both the traffic separately. I am very confused and seeing that blog's traffic is coming but it doesn't give benefit to my original domain. Previously, I ran my blog with html pages and those are associated with my original domain. Since then I separated my blog from my original domain, I can see my ranking going down and down.. So thanks a lot for the information you have shared, it helps me a lot. Thanks Bilal