(Entry was posted by SEO UP on this post in the Dumb SEO Questions community on Facebook, 10/18/2013).

Can subdomains harm my site in SEO?

Hello,
I have a question that I can`t find a good answer on.
I have a site, actually a "portal"/ "directory" for service providers.
Now, for start, we opened every service provider own page on our site, but now we get a lot of applications from those providers that thy want sites from their own.
We want to make every service provider his own site, but on sub domain url. ( they don’t mind… its ok for them)
So, my site is www.exaple.com
There site will be: provider.exaple.com
Now I have two questions:
1. can it harm my site in SEO?
2. if one from those sub domain , punished by google because is owner do "black hat seo" , how it will affect the rood domin? It can make the root domain to get punished?
Thanks!!

This question begins at 03:00:20 into the clip. Did this video clip play correctly? Watch this question on YouTube commencing at 03:00:20

Share on Twitter

Share on Facebook

YOUR ANSWERS

Selected answers from the Dumb SEO Questions Facebook & G+ community.

SEO UP: Hello,
I have a question that I can't find a good answer on.
I have a site, actually a "portal"/ "directory" for service providers.
Now, for start, we opened every service provider own page on our site, but now we get a lot of applications from those providers that thy want sites from their own.
We want to make every service provider his own site, but on sub domain url. ( they don’t mind… its ok for them)
So, my site is www.exaple.com
There site will be: provider.exaple.com
Now I have two questions:
1. can it harm my site in SEO?
2. if one from those sub domain , punished by google because is owner do "black hat seo" , how it will affect the rood domin? It can make the root domain to get punished?
Thanks!!