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madeofpalk 2 days ago

> If you're using localstorage to track users [...] but nobody does

I promise you every adtech/surveillance js junk absolutely is dropping values into local storage you remember you.

root_axis 2 days ago | parent [-]

They are, but without cookies nearly all of the value disappears because there is no way to correlate sessions across domains. If commercesite.com and socialmediasite.com both host a tracking script from analytics.com that sets data in localstorage, there is no way to correlate a user visiting both sites with just the localstorage data alone - they need cookies to establish the connection between what appears to be two distinct users.