SubDomains & SEO

[sld7]

Do subdomains effect the SEO of the main domain?

For example, if someone owned www.Books.com and added subdomains such as www.ScienceFiction.Books.com, Romance.Books.com, Crime.Books.com etc....

What would the impact be?

 

[duskdawn]

AFAIK, it doesn't.
My mw.domainers.biz and mwdomains.com generates similar amount of traffic to me.

 

[faisj]

Well, the only thing is that: Google has a habit of treating subdomains as individual sites.

 

[sld7]

That is what I was refering to. Would it hurt my Google ranking?

I know in the past their were issues with "similar" sites.

 

[peter phillips]

Subdomains rank just as well as regular domains. Having a subdomain doesn't decrease your main domain's chances of ranking well on search engines. As mentioned above, Google treats each subdomain as a new, individual site which means you will need to work on building PR and links for subdomains as you do with your main domain.

 

[equity78]

Peter what about a site that you have all on one page so it reads just like a never ending scroll I have an idea for a site where I will update each day with the relevant news on that topic for that day I fugured so someone can get every days info easily I owuld just make it one page. IS that bad for SEO ?

 

[MadAboutDomains]

Asa general rule, search engines don't like subdomains

 

[weblord]

nope not a bit
make sure it's different content for
sub.domain.com
www.domain.com
and yeah each sub will have different pr depending on how you promote it on google.

That is what I was refering to. Would it hurt my Google ranking?

I know in the past their were issues with "similar" sites.