Does links from main domain to subdomain hurts my SEO? [migrated]
I have a WordPress website (eg example.com) which is basically a blog with weekly educational posts about a specific subject. I also have a subdomain (eg courses.example.com) which offers online courses about the exact topics I write in my blog.
So I want to put a link (courses.example.com) inside my every blog posts in example.com
Does it hurt my SEO that every one of my posts on example.com has the same link to the courses.example.com?
If yes, is there any recommendation?