Google recently updated one more policy – it’s for sub-domains. As, sub-domains have always been treated as something not within the website and with the URL SEO structure – it made even worse for sub-domains to be used in websites.
People have been shy to use sub-domains in their websites because of Google and its policy. But now things have changed. New, sub-domain policy has been introduced.
New Sub-domain Policy
According to the recent update from Google – sub-domains that were previously treated as something not within the website is changed.
Now, sub-domains are treated the entity within the website. Links generated or linked from sub-domains previously were treated as outside links but now they will be treated as one unit.
I do think with this new sub-domain policy there will be some change in the URL structure as well.
Since, sub-domains links are now treated as generated within the website. More and more people will use it.
The reason Google must have changed this policy is due to the face that more and more seo hungry people were making sub-domains and linking back to their main domain. This could have given rise to spam link-building technique.
Now, with changed scenario it will still be powerful to use sub-domains as it will increase the onsite seo authority for any site.