disableCookies, Opt-Out and disabled tracking by browser

General questions
1

Good evening,

I have some questions regarding cookies and tracking.
As I understood, a user is still tracked when I use disableCookies(), just not as a unique visitor because no cookie to identify this visitor is set.

So if I don’t want the visitor to be tracked, the opt-out-cookie via the iframe has to be set.

My questions are:

  • Is there a way to set the opt-out-cookie by default and create thereby an opt-in-solution?
  • how is the disableCookie- and opt-out-cookie influenced if tracking is disabled by the browser? Does this affect these cookies also?

Thank you very much for the information and help in advance.

Kind regards
Miriam

2

Hi,

See https://developer.matomo.org/guides/tracking-javascript-guide#asking-for-consent (or the “Asking for Consent” page in Matomo) for an explanation on how to implement an opt-in tracking.

That depends on what you mean by disabled by the browser. If you are referring to DoNotTrack:

If you only have configured DNT in Matomo, then all data is still tracked (including cookies), but Matomo drops them when it recieves it.
If you add _paq.push(['setDoNotTrack', true]); to the tracking code, no data should be sent and (I think) also no cookie is set. But I haven’t tested the latter.

3

Thank you so much for the clarification!

Regarding the browser setting, I was thinking of disabling third party cookies. Does this also affect cookies that prohibit tracking and sending of data?

Miriam