Free Website Builders Subdomain With Google Ads

Hi all I'm a newbie here!!
I just want to know is it allowed to promote websites with Webnode subdomain(for example mysite.webnode.com) with google ads?
The same question to other website builders such as Wix and Weebly and Yola.

If you directly use sub-domains as you mentioned, your ad will be rejected OR most probably GAds account suspended.

Raj Kesu said:

If you directly use sub-domains as you mentioned, your ad will be rejected OR most probably GAds account suspended.

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well, that's bad, what do you think about using freenom domains like .cf with GAds? is there any risk for my GAds account?

and what do you think about promoting an article on Medium with google ads? will my ad be approved?