• Alia Formoy

    Interesting article Dax. I recently heard something about asynchronous cookies which are embedded in URLs so tracking tags don’t have to be inserted into your website. Is this the same as a cookie side cookie? (I may have got the terminology completely wrong, so apologies in advance).

  • Pat Grady

    Probably should append information about:
    +Browsers setting limits on total number of cookies, total per domain, and total file size.
    +Cookies expire, either through the expiration date set in each cookie, or because some browsers delete the oldest cookies when the max limit of total cookie count on that machine is reached.
    +Like writing your name on a chalkboard, tracking cookies aren’t bad and can’t do anything malicious – it’s just a marker of who and when. It’s people who try to erase your name (or other data), and write another name (most often theirs) in it’s place, who are sometimes up to no good. There are legit reasons to overwrite a cookie – like a last visit cookie, with each visit, it over writes old data, with new data. And there can be illegitimate reasons why someone overwrites a cookie. Point being, cookies themselves are harmless, it’s what people do with, and to, the cookie’s stored data that matters.
    +Some browsers have been restricting 3rd party cookies, because of data sharing abuses, or the risk thereof.
    +Might want to address “cookies” in the App ecosystem, maybe just direct people to an article like this one:

  • Stuart Kaufman

    @Dax, I’d like to chat with you and your knowledge of affiliate links, I run a very clean site which has some affiliate links which my advertiser is benefiting from much more than I am and I’d like to understand how to serve the affiliate link when clicked but not allow him to retarget and market directly to my visitors as you mentioned. Please see note to you on G+

  • Pat Grady

    article I read today…

    Think Cookies Hurt Your Privacy? You’ll Beg For Their Return Once You See What Google And Facebook Are Planninghttp://finance.yahoo.com/news/think-cookies-hurt-privacy-youll-123744973.html

  • ChrisHunt

    “If I was a publisher and allowed another company to pixel my site, that company now has a cookie on all my visitors and can target those individuals themselves without the need to pay me.”
    What exactly do you mean by that? How are you suggesting that this “targetting” can take place? Sure, an advertiser could place a cookie on a user to indicate to them that the person had been to my site, but that’s pretty much it. It wouldn’t give them email addresses or Facebook ids or anything else that would enable them to “target” the people concerned.
    Heck, I can’t “target” past visitors of my own site if they didn’t choose to leave an email address, and don’t choose to come back. What is a third party going to do with a cookie?

  • Dax Hamman

    Hi Stuart – if your affiliate has the pixel on your site, then they can absolutelty retargeting your audience. The only way around it from what you describe is to create code on your site that only fires their pixel when a conversion occurs that they drove.

  • Dax Hamman

    Hi Chris, good question.

    So let’s say I am a fashion brand. I want to advertise my products on GQ.com, and so I call them, negotiate a deal and have my ads placed. At that point I can not retarget the GQ.com audience, only those that subsequently come to my site.

    Now imagine I went to GQ and said as part of my buy, I want them to place my pixel so I could track the number of people that saw my ad or sponsored content. I now have a pixel on their site, and those people can then be added to my own retargeting pool.

    The next time I want to run a promotion, I don’t need to pay GQ to run my ad, instead I buy cheap inventory against that retargeting pool.

    GQ wouldn’t allow the pixel for this reason.

    (Dear Readers – I know there are lots of caveats and alternatives to this example, and there is of course value from having the brand associated with the GQ brand that couldn’t be generated from just running retargeting ads elsewhere… this is just a simple example :) )

  • Dax Hamman

    Hi Alia – sorry for the delay in responding, I just saw your comment. I would need a bit more information I think. You could be referring to click trackers that can tell when a client occurs, or perhaps a click that redirects through a page that isn’t seen, and that page drops a cookie.