How does the specified service affect search results?

Question

Search Engine Optimization

I read somewhere on the forums that search engines downgrade sites that use similar services:
socfishing.ru
ru.soctracker.com
traffgui.ru
get-plus.ru
https://www.whoisvisiting.com/
I would like to know if this is true and why or why not.

Answer 1

Yes, that's right, Yandex has a separate filter for clickjacking.
https://yandex.ru/blog/webmaster/21745