[zerocrates]

I suppose the issue here is that these aren't really "third" parties doing the recording, even if they're using third-party scripts.

[arkh]

Yeah the owner of the website which include the script has only their website data.

The third party follows users over all the websites they're deployed on. Best example is google analytics and all beacons scripts (G+, FB like, share on twitter etc.) which track you almost everywhere.