Google affiliate filter?

Question

Google

I am the owner of a website with reviews of various companies and SaaS for business.

Later, 3 months ago, I created my second website. Online course catalog
It compares the courses of different online schools. And also there are reviews about schools.

And it turns out both on my first site and on the second there are pages with reviews about schools. In Yandex, for queries (school name + reviews), the pages of both sites are in the top 10.

In Google, the pages of the first site are in the TOP 10, and the pages of the second site do not seem to fall into the ranking at all. That is, by direct request, the url in the page search is issued. And on request (school name + reviews) no. If you scroll deeply, you may even come across other irrelevant pages for this query from the same site, the course directory. And the right ones don't fit. Reviews on one site and the second are different, original. It is more important for me to be at the top of the page of the new site, the catalog of courses. So I even put links from the reviews pages of the old site to the reviews pages of the new one. For new ones to rise. But it didn't help.

What to do? And how do you know if there is a filter on them?

Answer 1

the filter is worth it - obviously there
are only a dozen of them running, write how to understand for a long time

Answer 2

If this is a filter, then it’s definitely not an affiliate, because there are no affiliate filters in Google. Look in the direction of other points - maybe there are duplicates on the site, the domain itself is under Google sanctions, the content is delivered differently, links are spammed, etc.