Earlier quoted context omitted.
There are three things that you can demand of a company (that meets certain revenue thresholds) if you’re a California resident: - that they delete information about you that they have (with potential exceptions) - that they provide you with what information they have about you, and for what purposes they have that information (with exceptions) - that they opt you out of sharing data with other entities (with excepti…
> You cannot, as implied by the email, demand a response to an arbitrary query. I wouldn't say that the questions were arbitrary; they were exactly the things you would need to know in order to submit a request for information, but without the actual request. The only alternative that I can think of to get the same information is to register at all of these websites, use them for five minutes, then make an actual leg…
They made no guesses - they randomly selected sites from rankings of top websites (specifically, from an common academic time-smoothed aggregation of Alexa and some of its competitors).
From the study website (https://privacystudy.cs.princeton.edu/): "The set of websites for this study is sampled from the Tranco list of popular websites and publicly available datasets of third-party tracking websites."