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Advertising High complexity

Criteo

by Criteo

Sets cookies
Yes
Sends PII
No
Cross-site tracking
No
Consent required
Advertising / Marketing
Transfer mechanism
Standard Contractual Clauses
Cookies
cto_bundlecto_tld_testuid

Overview

Retargeting and performance advertising platform. Places pixels to build audience segments and deliver personalised display ads across the Criteo network. Processes browsing behaviour, product views, and purchase data for ad targeting.

Detection Capabilities

Signature count
1
Detection methods
network

Performance Impact

Performance Impact

Script size
35 KB
Requests per page
1

Common Mistakes

  • 1 Firing Criteo tags before explicit advertising consent is obtained
  • 2 Not disclosing retargeting in the privacy notice — the CNIL enforcement specifically cited transparency failures
  • 3 Sending product catalogue data including prices without verifying this is necessary for the retargeting use case

Compliance Considerations

Sets third-party cookies and processes browsing behaviour for cross-site retargeting. Explicit advertising consent is required under GDPR/ePrivacy. Criteo was subject to a significant CNIL fine (EUR 40 million, June 2023) for consent and transparency failures — ensure robust consent collection and clear disclosure of retargeting in the privacy notice.

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