Is there a standard meaning for _csuid/__qsa in cookies?

2

I was perusing my cookies, and discovered several cookies from various different sites, which all have the same value. They are all named "_csuid". I have another set, all from different sites, all with the same value, named "__qsa". It seemed rather strange that they would all be identical, despite coming from different sites.

In case it's relevant, I'm browsing with Camino on Leopard.

Does anyone know what these cookies are recording, since they appear to be tracking me across domains...?

Dave Gamble

Posted 2009-08-02T05:42:02.820

Reputation: 121

Do you mean __qca? I can't find anything about __qsa. – jtbandes – 2009-08-02T05:56:18.980

Answers

3

It appears that _csuid is from AddThis, and __qca and __qcb from Quantcast. Also, to my knowledge, the __utm* cookies are from Google Analytics.

Here's some good information on the Google Analytics cookies. It appears AddThis and Quantcast haven't published anything like that.

jtbandes

Posted 2009-08-02T05:42:02.820

Reputation: 8 350

Asked: 2009-08-02T05:42:02.820

Viewed: 689 times

Active: 2009-08-02T05:55:50.633