The Uses of Sub-domains and Their Impact on SEO

If you do not see the need to create a sub-domain, maybe you do not understand its uses, and you fail to understand how it can help you or your website. Sub-domains have numerous applications. Ease use has the potential to affect SEO positively or negatively. Here is a look at some of the most common uses of sub-domains and their impact on SEO.

  • Show off different product lines – If you offer different product lines on your website, it is wise to have a sub-domain for each.
  • Sharing the root domain – You may want to share your root domain with an associate or a friend. Setting up sub-domains gives each user control over his/her website. When your associate does something stupid with their SEO, it will not affect your site.
  • Creating a website blog – Most sites host their blogs on sub-domains. This allows users to access the blog without having to go through the main site.
  • Separating departments and franchises – For businesses with many departments or branches in different locations, sub-domains allow the creation of websites for each under the same domain. This allows you to optimize content for each department or region.
  • Catering for different languages – If you are setting up a site to cater to different languages, you can set up sub-domains for each language.

Effect on SEO

It is always a contentious issue whether sub-domains are good or bad for SEO. Most experts argue that managing sub-domains is similar to managing more than one website. The hassles and demands can be daunting especially for those new to website management.

However, once you get past this disadvantage, there are a lot of SEO advantages you can gain from sub-domains.  These include:

  • Improved user experience –The organized nature of sub-domains makes navigation easier. Improved user experience is not only good for conversion rate but also for search engine ranking.
  • Allows local optimization – By separating franchises, sub-domains allow local optimization. Locally optimized site rank high on search engines
  • Allows keywords insertion -Sub-domains let you insert keywords into your URL without having to register new domain names. Good keywords can considerably improve your search engine ranking.
  • Promotion of the primary domain – Sub-domains may be treated as separate entities, but they share the domain name. As such, accomplishments of each sub-domain promote the main domain and improve its authority.
  • Improve Niche authority – By separating different niches, sub-domains help improve niche authority. Improved niche authority translates to an improvement in the general authority.



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