armagon
October 24, 2018, 11:53pm
1
According to section 2 of this post on privacy and Matomo if Matomo can not use cookies, it will use fingerprinting.
Is it possible to disable fingerprinting?
Thanks.
msi
February 4, 2020, 8:00am
2
Does anybody has an idea, how to disable the use of device fingerprinting in Matomo?
Lukas
February 4, 2020, 9:00am
3
No! currently disabling the finger print is not an option in the current version of Matomo, developers are planing to give this as an option in the next update still the announcement is not totally final yet.
Lukas
May 22, 2020, 8:56am
5
Just for an update:
A minimal version of this (making the fingerprint only valid for 30 minutes and impossible to identify a user after that) has already been developed and will be released even before Matomo 4 in 3.13.6:
matomo-org:3.x-dev ← matomo-org:cookiefingerprint
opened 09:41PM - 29 Apr 20 UTC
The purpose of the fingerprint is to put all tracking requests within the same v… isit into the same visit in the DB. A fingerprint is basically valid for up to 30 minutes after the visit ends (unless different visit length is configured).
By adding a random hash to the fingerprint we make sure when a user disables cookies, a visitor cannot be identified across multiple days and such no cookie consent should be needed.
This change should not really change behaviour for anyone AFAIK. In Matomo 4 we could remove the check for `create_new_visit_after_midnight` potentially. We cannot limit the fingerprint in that case as when someone has `create_new_visit_after_midnight=0` and has cookies disabled, then a new visit would be still created after midnight since the configId would change.
The limited fingerprint will also not apply when enabling `[Tracker]enable_fingerprinting_across_websites = 1` since different sites can have different timezones and therefore we can't add any date to the fingerprint.
refs https://github.com/matomo-org/matomo/issues/13655