August 9, 2025
2 min read
The analysis of GDPR’s requirements demonstrates that consent is explicitly required before placing most cookies on users’ devices. Several authoritative sources confirm that cookies, as defined by Article 4(1) of the GDPR as “online identifiers,” are considered personal data when they can identify a user, either directly or indirectly (European Parliament, 2016).
Key findings:
"Consent must be obtained before any cookies are placed or accessed on the user’s device, except for those strictly necessary for the provision of the service explicitly requested by the user" (European Court of Justice, Planet49 case, 2019).
Empirical studies of cookie banners and compliance across EU websites reveal widespread implementation of consent mechanisms. However, dark patterns and misleading designs still result in non-compliant practices (Utz et al., 2019). Effective consent management platforms (CMPs) must provide:
Non-compliance with GDPR’s consent requirements has resulted in several high-profile enforcement actions and fines by data protection authorities.
In summary, GDPR mandates prior, affirmative user consent for all cookies except those strictly necessary for website operation, with a growing body of regulatory guidance and legal precedent reinforcing this obligation across the EU and UK.