Subdomains Vs. Subfolders: From an Indexation Perspective
We find that many questions remain unanswered in our world as SEO’s. Every one seems to think they have the answers when it comes to SEO but the reality of the situation is that with over 200 factors that effect ranking, we can’t know everything. So the question of the day is, “Should we build our site with Subdomains (cars.mysite.com) or Subfolders (mysite.com/cars)?”
Our client whocanisue.com was having in indexation problem after a shift over to a new CMS. While still ranking very high for their well converting keywords they went from about a 70% IR (Indexation Rate) to an IR of about 20 percent over 120 days post New CMS. Although it seems very commonsensical, whocanisue.com had the standard subfolder structure with a deep page hierarchy that we felt may have been making it difficult to get all the pages indexed. After confirming our theory with SEOMoz and their post about how flattening your site could yield better indexation results we put it to the test.
Less than one month after migrating 1800 pages of content into 140 subdomains we have found that we have 1710 pages indexed for an IR of 95%. Additionally, our search engine traffic increased 7% over the same time frame. Although some of our keywords dropped position on a nominal level we now have more pages indexed which are resulting in far more keywords appearing in search querys.
We are elated by this move as is our client. It’s important to understand that if your goals are to make the user experience better, chances are Google and the other big Search engines will take note and help you out.