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The restrictions really affect cookie based traffic reports (so use weblogs or image beacons instead), A/B testing preferences, accepting money from advertisers to track visitors through your site.

The article says that anything which you could use instead to get basically the same end result a cookie, but which technically isn't one, is still covered by this legislation. If so, you would need to get consent for non-essential image-beacons as well, or weblogs(?) or whatever else you chose.