Hello John

Thanks you for your answer.
In fact this is a set up used for multi domains magenta store that we copied
But maybe that if I explain more you could advise that it's not useful with your own experience ?

We have a main domain at https://activ-ha.com and another one at https://site113.com with a 301 redirect to the first one.
We only use site113 for subdomains used by our users like username.site113.com ,then providing them with a small website using the resources of our main one and allowing them to pin their blog items.

What we want to achieve is a good SEO for our mainwebite targeting our specialities and know how and another SEO for each or our subdomain users with only main page and their blog page items.

How do you thing that JSiteMap pro could help us achieve this ?

Thanks for helping