Sub Domain

[Armin666]

Hi everybody,

My competition has started to use the sub-domains vastly. He has created one sub domain for every single city and keyword. Is it something that I should be worried of? Is it a good idea I start doing the same thing?

Thanks for your help.

[FedeEinhorn]

Subdomains are basically different domains, so if your competitor does it a lot, and they interlink all those pages, they could even get a penalty.

If you use subfolders, all the link juice you get to any page will affect the entire site, as opposed to subdomains, where each backlink affects the subdomain itself, and therefore the main domain gets less juice.

Both are possible and accepted, but if you ask me, I would go with the sub-folders instead.