cookie-consent

# Show a cookie consent notice GDPR violations can result in fines up to €20 million or 4% of global annual turnover. Regulators across the EU have actively fined organizations for deploying tracking cookies without valid consent. ## Quick Reference - GDPR requires consent before setting non-essential cookies (analytics, advertising, personalization) - Essential/strictly necessary cookies (session, security, login) do not require consent - Consent must be freely given, specific, informed, and unambiguous — pre-ticked boxes are invalid - Users must be able to withdraw consent as easily as they gave it - Scripts and pixels must not load until the user has actively accepted their category - Non-essential trackers must stay blocked until consent and after revocation ## Check Check whether the site displays a cookie consent notice before setting non-essential cookies. Verify that analytics, advertising, and tracking scripts do not load until the user has actively accepted. Check whether users can reject non-essential cookies without losing access to content. ## Fix Implement a cookie consent management platform (CMP) that blocks non-essential scripts until consent is granted. Configure analytics and tracking tags to initialize only after explicit consent. Provide a mechanism for users to change their consent preferences at any time. ## Explain Explain what GDPR requires for cookie consent, the difference between essential and non-essential cookies, why pre-ticked boxes are invalid consent, and what a technically compliant consent implementation looks like. ## Code Review Review server config, headers, forms, and integration points related to Show a cookie consent notice. Flag exact responses, cookies, or browser behaviors that violate the rule, and verify them against the effective production-like response. Check that tracker initialization is gated on consent and that a persistent "change cookie settings" path exists after the banner is gone. --- For full implementation details, code examples, and framework-specific guidance, see `references/rule.md`. Rule page: https://frontendchecklist.io/en/rules/privacy/cookie-consent