Curious how useful is an IP address with a simple HTTP get request? As long as a sane Referer-Policy is set, the Referer won't be sent. Sure there's a lot more to browser fingerprinting but with just an HTTP request, all the data that would be known from it is the language and the user agent. Both of which are not unique data points and shared by thousands of other users. No cookies either in this case of Google Font…
So how valuable would it be to you if I would share with you that I spent $20 yesterday on shopping groceries. Probably not so much. But if I would share with you 90% of my spending, you might be able to infer a lot more information about me. So the question isn't how useful the single request is, but rather what can be done with a lot of these requests. And Google and Facebook are specialists in generating lots of s…
Your thoughts about a like button widget, or even Google Analytics are perfectly valid. But I am talking about this specific topic under discussion, Google Fonts.