Does the tt_sessionId cookie need consent?

In the EU and the UK, yes. tt_sessionId 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 tt_sessionId cookie?

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

How do I block or delete the tt_sessionId cookie?

Visitors can delete tt_sessionId 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

tt_sessionId cookie

Set by TikTok Pixel.

What it does

Holds a unique ID for the current browsing session. Used to group multiple events (page views, clicks) into one session for attribution.

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

Consent

Needed in the EU and the UK

tt_sessionId 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 tt_sessionId. Advertising and tracking cookies are never covered by the strictly necessary exemption.
UK GDPR and PECR: Consent is needed before setting tt_sessionId.
CCPA and CPRA (California): Setting tt_sessionId 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 tt_sessionId with a consent banner

A consent banner can keep the script that sets tt_sessionId waiting until the visitor accepts marketing cookies. Kukie.io's cookie scanner finds tt_sessionId 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

Related cookies