Does the tt_s_pixel_session_index cookie need consent?

In the EU and the UK, yes. tt_s_pixel_session_index 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_s_pixel_session_index cookie?

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

How do I block or delete the tt_s_pixel_session_index cookie?

Visitors can delete tt_s_pixel_session_index 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_s_pixel_session_index cookie

Set by TikTok Pixel.

What it does

Keeps track of the number of sessions initiated by the same visitor, linked to the TikTok Pixel ID. Supports event de-duplication and session attribution.

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

Consent

Needed in the EU and the UK

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

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