Functional

"PREF" Cookie

Youtube

Description

This cookie stores your preferences and other information, in particular preferred language, how many search results you wish to be shown on your page, and whether or not you wish to have Google’s SafeSearch filter turned on.

Details

Cookie Name: PREF
Category: Functional
Service: Youtube
Duration: 10 years from set/ update
Data Source: Open cookie db

Consent Requirement

This cookie is classified as functional. Under GDPR and similar regulations, explicit consent is recommended before setting this cookie.

Consent Requirements by Regulation

GDPR & ePrivacy (EU)

Consent is recommended before setting PREF. Functional cookies are only exempt when strictly necessary for a feature the visitor explicitly requested, such as remembering a language choice they just made.

UK GDPR & PECR

Same position as the EU rules: obtain consent unless the cookie qualifies for the strictly necessary exemption.

CCPA/CPRA (California)

Disclose PREF in your privacy policy. If the stored data is shared with third parties, opt-out requests, including the Global Privacy Control signal, must be honoured.

Managing PREF with a Consent Banner

A consent management platform keeps PREF blocked until the visitor opts in to the functional category. Kukie.io's scanner detects it automatically, categorises it, and the banner's auto-blocking holds back the script that sets it until consent is given - visitors who decline never receive it.

Frequently Asked Questions

Does the PREF cookie require consent?

Usually yes. PREF is a functional cookie, and unless it is strictly necessary for a feature the visitor explicitly requested, you should obtain consent before setting it.

How long does the PREF cookie last?

PREF typically persists for 10 years from set/ update. The exact lifetime can vary with the site's configuration and the version of the script that sets it.

Who sets the PREF cookie?

PREF is set by Youtube. It is categorised as functional.

How do I block or delete the PREF cookie?

Visitors can delete PREF at any time through their browser's cookie settings. Site owners can keep it blocked until consent with a consent management platform: Kukie.io's auto-blocking holds functional cookies back until the visitor opts in.