This is more or less the same way SimilarWeb collects its data, so I wonder when will they start being treated the same. They operate a number of inhouse extens

This is more or less the same way SimilarWeb collects its data, so I wonder when will they start being treated the same. They operate a number of inhouse extensions and partner with other extension developers to collect the entire click trail of the users. Internal links in your intranet, localhost, "private" google drive links, all is collected and sold. It's beyond me how this shady business is treated as legitimate, including major web and tech publications citing their data reports.