FPID - Cookie policy of 7 days?? | Community
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ChetanyaJain-1
Community Advisor
ChetanyaJain-1Community Advisor
Community Advisor
June 21, 2023
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FPID - Cookie policy of 7 days??

  • June 21, 2023
  • 1 reply
  • 1468 views

Hi Adobe Team,

 

In this video https://youtu.be/s5RVWPeD0AA?t=201 its mentioned that any visitor returning after 7 days will be identified as a new visitor since the cookies will be deleted. I wanted to understand the rationale behind "7 days." Is this just a hypothetical number, or its some governing policy? Can you please share more info on this?

 

Ideally, we can set cookies (ECID specific) for 12 months, so in that case, how will this impact the return visitors issue? Trying to understand if it's really necessary to implement FPID.

 

CC: @woutervg , @bitunsen 

 

Thanks,

Chetanya

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    Best answer by woutervg

    Hi @chetanyajain-1 

     

    The 7 days mentioned in this webinar refers to Apple's ITP rules whereby all JavaSript-cookies are cleared after 7 days.

    From https://webkit.org/tracking-prevention/:

    7-Day Cap on All Script-Writeable Storage

    Trackers executing script in the first-party context often make use of first-party storage to save and recall cross-site tracking information. Therefore, ITP deletes all cookies created in JavaScript and all other script-writeable storage after 7 days of no user interaction with the website. The latter storage forms are:

    • IndexedDB
    • LocalStorage
    • Media keys
    • SessionStorage
    • Service Worker registrations and cache

    CNAME and Third-Party IP Address Cloaking Defense

    ITP detects third-party CNAME cloaking and third-party IP address cloaking requests and caps the expiry of any cookies set in the HTTP response to 7 days.

     

    By using and setting the FPID as a server-side HTTP Only cookie that is managed by your organisation directly, that 7 day ITP limit currently won't apply for the FPID, and as such, you'll have a more consistent visitor count and consistent customer profiles in RTCDP.

    1 reply

    W
    Adobe Employee
    woutervgAdobe EmployeeAccepted solution
    Adobe Employee
    June 22, 2023

    Hi @chetanyajain-1 

     

    The 7 days mentioned in this webinar refers to Apple's ITP rules whereby all JavaSript-cookies are cleared after 7 days.

    From https://webkit.org/tracking-prevention/:

    7-Day Cap on All Script-Writeable Storage

    Trackers executing script in the first-party context often make use of first-party storage to save and recall cross-site tracking information. Therefore, ITP deletes all cookies created in JavaScript and all other script-writeable storage after 7 days of no user interaction with the website. The latter storage forms are:

    • IndexedDB
    • LocalStorage
    • Media keys
    • SessionStorage
    • Service Worker registrations and cache

    CNAME and Third-Party IP Address Cloaking Defense

    ITP detects third-party CNAME cloaking and third-party IP address cloaking requests and caps the expiry of any cookies set in the HTTP response to 7 days.

     

    By using and setting the FPID as a server-side HTTP Only cookie that is managed by your organisation directly, that 7 day ITP limit currently won't apply for the FPID, and as such, you'll have a more consistent visitor count and consistent customer profiles in RTCDP.

      ChetanyaJain-1
      Community Advisor
      ChetanyaJain-1Community AdvisorAuthor
      Community Advisor
      June 27, 2023

      Thank you, @woutervg 

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