What is the TDID cookie?it needs consent first
Set by The Trade Desk (The Trade Desk, Inc.). Expires after 1 year.
Block it until the visitor opts in
Under the ePrivacy Directive (Art. 5(3)) and GDPR, TDID may only be set after the visitor accepts marketing cookies.
Purpose
The Trade Desk's unique ID for the visitor's browser, used for programmatic ad targeting.
Cookie details
- Cookie name
TDID- Service
- The Trade Desk
- Provider
- The Trade Desk, Inc.
- Category
- Marketing / Advertising
- Duration
- 1 year
- Consent
- Required — opt-in
GDPR requirements
Marketing cookies are used to track visitors across websites to display relevant advertisements. Consent is required under GDPR.
For TDID to be compliant, it must be:
- Not set on the first visit — not even for a fraction of a second
- A consent banner is shown, and the visitor actively accepts marketing cookies
- Stays blocked if the visitor rejects or ignores the banner
- Listed in your cookie policy with its name, purpose and retention period
- Removed or invalidated when the visitor withdraws consent
How to handle it
- 1Block it by default
Configure your consent platform (CMP) or tag manager so The Trade Desk doesn't load until the visitor accepts marketing cookies.
- 2Map it to a consent category
Put it under “Marketing / Advertising” in your CMP configuration.
- 3List it in your cookie policy
Name, purpose, provider (The Trade Desk, Inc.) and expiry (1 year).
- 4Sign a DPA
Have a Data Processing Agreement with The Trade Desk, Inc. covering the data this cookie collects.
- 5Verify it works
In a private window, reject cookies and confirm
TDIDis not set.
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