Sub domains and sub directories exist for websites.  The trouble is there is a lot of information talking about the various options, and you might not understand what option is better. If you are hoping to learn if you should use a sub domain or sub directory you are in the right place for this search engine optimisation technique.

A sub directory is going to look like this: http://www.yourdomain.com/topic, whereas the sub domain is http://topic.yourdomain.com, and as you can see there are definitely differences in how the URL’s are constructed.  Continue reading →