I recently read an SEO blog post where the author was giving examples of how to improve the SEO of an e-commerce page.
One of the points the author made was to have a blog, such as
blog.example.com where updates can be made.
I thought this would only have an effect on
blog.example.com and not
Similarly do other areas of SEO work in the same way.
For example does a link to
blog.example.com have an effect on