Is it better to make an online store blog on the main domain or a subdomain?

Question

Blogs

I heard an opinion from a SEO specialist that it is better on a subdomain to separate informational and commercial requests. so that search engines clearly distinguish our online store or blog.
Is it so?

I would like to have a single authorization on one subdomain and you can implement more chips, better integration of the store into the blog and vice versa.

Answer 1

From my point of view, it is not worth making a blog on a subdomain. A subdomain is a separate site that does not inherit anything from the main site. You will have to download it separately and from scratch. Taking into account the fact that it is much more difficult to raise an information box now than a year ago, the more the idea is losing.
Start from semantics and structure based on it. There will be no good information section to the detriment of commerce.

Answer 2

on the main domain. The subdomain makes no sense at all. Just put it in the section and don't invent the wheel

Answer 3

it purely depends on your seo plan,
how you say it will be,
well, or how your SEO specialist says
if you don’t have a plan, then it doesn’t matter at all how to implement it