This is a really questionable business practice IMHO:
free-fonts dot com is a website operated by »Neuber Software« (publisher of »Typograf«, a commercial font viewer for Windows).
First of all it creates »fake/SEO content« by suggesting it offers free downloads to the respective fonts by saying »The best website for free high-quality Proxima Nova fonts, with 26 free Proxima Nova fonts for immediate download, ...« and it also has a »Relevant Web pages about ...« section that includes links to actual illegal download sites (not in all cases, but for some).
Proxima Nova is just an example here, you can actually use any other font name, Gotham, Helvetica or any other commercial font that is in their database.
You might want to check their website if it includes any of your work listed and then may ask them to remove it ...
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It's kinda bad SEO tricks only, however due to the domain name and the fact it's been around for some time they rank pretty good for some common Google queries and to me this is like "fake news" for fonts.