Does the ttclid cookie need consent?

In the EU and the UK, yes. ttclid is a marketing cookie and needs consent before it is set under the GDPR, the ePrivacy rules and PECR. Under the CCPA and CPRA, visitors can opt out of its use for cross-context behavioural advertising.

Who sets the ttclid cookie?

ttclid is set by TikTok Pixel, from TikTok Inc.. It is in the Marketing category.

How do I block or delete the ttclid cookie?

Visitors can delete ttclid in their browser's cookie settings. On your own website, a consent banner can keep the script that sets it waiting until the visitor accepts marketing cookies. Kukie.io's banner does this for known trackers by default, and for any other script you tag with its category.

Marketing

ttclid cookie

Set by TikTok Pixel.

What it does

Stores the TikTok Click ID when a user arrives on the site via a TikTok ad. Used for conversion attribution to link ad clicks with on-site actions.

Cookie name: ttclid
Category: Marketing
Provider: TikTok Pixel
Vendor: TikTok Inc.

Consent

Needed in the EU and the UK

ttclid is in the Marketing category. In the EU and the UK, it needs the visitor's consent before it is set. Under California's CCPA, visitors can opt out of the sale or sharing of their personal information, including for cross-context behavioural advertising.

GDPR and ePrivacy (EU): Prior consent is needed before setting ttclid. Advertising and tracking cookies are never covered by the strictly necessary exemption.
UK GDPR and PECR: Consent is needed before setting ttclid.
CCPA and CPRA (California): Setting ttclid for cross-context behavioural advertising counts as sharing personal information: offer a "Do Not Sell or Share My Personal Information" opt-out and honour the Global Privacy Control signal.

Managing ttclid with a consent banner

A consent banner can keep the script that sets ttclid waiting until the visitor accepts marketing cookies. Kukie.io's cookie scanner finds ttclid and sorts it into a category. The banner holds back known trackers by default, and any other script you tag with its category waits too.

Learn more about script blocking

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