Subdomains for niche related keywords

[CMTM]

I wanted to know how efficient using a subdomain is, taking in consideration all the updates Google has made lately.

I am looking to use a subdomain for a well branded website for a niche specific part of their website. The subdomain will end-up having more than 100 pages.

I'd like to see in what cases do you guys recommend using a subdomain? How to get the same benefit out of a subdomain as i am getting from the actual main domain?

[CMTM]

I agree with you and thank you for your answer but at the same time i am more worried abt the structural standpoint - as i responded above to one of the replies - use the example with the hospital

A hospital may target very general related keywords but then it may offer very specific services and programs that are all indirectly related. Now those programs are very niche related and specific for certain types of surgeries and services offered, they contain a lot of information and can be expanded way above the 10 pages mentioned.

Now the question is what do you do in that case? You'd rather have 5 sub folders divided in other 20-30 categories and subcategories? Or you would rather have them structured in a better way on a sub-domain? What would be your choice in this case?

[CMTM]

ok the main website targets 5 very competitive niches. They are different niches and they all offer different types of services.

as a good example would be a hospital that offers a couple of different programs and surgeries. Each program offers a different service, and targets different niche related keywords. But because the main site offers all of those its hard to categorize them in subfolders.

[Tompt]

You will be doubling your workload, essentially starting a brand new website from scratch in the same niche. I feel I need to make that very clear.

You asked about efficiency and that's pretty much the core of what I'm talking about, subdomains are inefficient.

Niche subdirectories are by far the better option.

[krissy-cca]

Cary,

In my opinion sub-domains should be used for completely different content. If your niche has anything to do with the current site then a sub-folder is the way to go. Can you provide more info on the current site and the new niche?

DD

[CMTM]

Ok so my understanding is that if you don't mind doing the extra work for a sub-domain then you do recommended it being used. Do you see sub-domains as achieving better placements down the road if the necessary extra work will be put into these?

[Tompt]

I can't speak for the Panda update, but I do agree with Daniel Deceuster, subdomains have been treat historically as separate sites. So unless things have changed dramatically you will essentially be starting from scratch link and work wise.

Subfolders may not be as neat or compartmentalised as sub-domains, but they are unambiguously under the ownership of the domain in question. Search engines can trust that.

Almost all of this work is about reducing ambiguity for the search engines, and sometimes that is at the cost of elegance.

[CMTM]

how about from a category standpoint - on the main site if you are creating a subfolder you are limited to how deep u structure your categories as opposed to a subdomain you have more flexibility and are able to categorize those 100 pages much cleaner and user friendly

how about if you target a different geo location? wouldnt that be optimized better with a subdomain?

[DanDeceuster]

SEO rule #1: Never use subdomains. Ever. For any reason.

Ask yourself this, what's the difference between putting these 100 pages on a subdomain as opposed to a subdirectory? None? Then why bother? Make it a subdirectory!

99 times out of 100 you will say no difference to the question above. In the random instance that you do have some kind of reasoning for using a subdomain that will get you something different, then sure, why not, but I doubt you can find a reason. Subdomains are treated as separate domains by Google. Why would you hinder your SEO efforts for no reason? Just put your 100 pages in a subdirectory of the domain and link to it from your website internally. That's all I would do.