We see a lot of sites every week. And one of the most common SEO mistakes are Magento storefront websites that use a subdomain.
For example, if you used the term, shop.yourdomain.com, the subdomain (shop) doesn`t confer any SEO-value from the URL string, or from other pages on the root domain. To Google and other search engines, this subdomain is treated as a completely separate entity.
… are all treated as three different websites by Google. Relevant content, inbound links, social media shares… are all split across each and counted separately.
Instead, it`s better to use a structure like this:
www.yourdomain.com/ (main site, may include eCommerce)
www.yourdomain.com/blog/ (blog site)
www.yourdomain.com/shop/ (eCommerce site, if separate from other site)
We have found that moving a Magento store from the subdomain shop.yourdomain.com –> www.yourdomain.com/shop can help increase a store`s rankings considerably.