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They can even be dynamic. Filter on location, uplink/computer speed, screen size, browser etc. None of it requires storing data. Adtech might move to correlati

• krisdol 8y ago
  They can also be quite smart. What was your referrer, what's your user flow through the site, what do similar users do when arriving from the same pages and searches? What time of day is it for the visitor? ie: figure out why they are doing what they're doing and direct them to ads that capture that intent.
  • jimmaswell 8y ago
    I'm not certain but much of that sounds like the kind of information GDPR doesn't let you use like that.
    • Angostura 8y ago
      The only reason that IP address logging is a problem is that ISPs could theoretically cross reference with subscribers leases and identify them. I think this much vaguer stuff will be fine.
    • tormeh 8y ago
      Why? None of it requires saving info on an individual server-side. As long as you don't do that the GDPR doesn't even apply to you.