Key Cookie Laws & Regulations Your Website Must Follow

Published: May 08, 2025

komply.today cookie banner guide

So, you've learned about the different types of website cookies and why cookie compliance is a big deal. You might even be looking into getting a compliant cookie banner. 


But what are the actual rules dictating all this? 


Which specific legal frameworks turn cookie management from a technical detail into a critical compliance task? 


This is where we dive deep. Understanding the specific laws and regulations is the bedrock of any solid cookie strategy. 


This 2025 guide will illuminate the key global legislations that define how you must handle cookies, ensuring you're equipped to navigate the legal requirements confidently.



The European Standard: GDPR and the ePrivacy Directive


The European Union has long been at the forefront of data protection. Two key pieces of legislation dictate cookie compliance for users in the EU:


General Data Protection Regulation (GDPR)


Effective since May 25, 2018, the GDPR is a landmark regulation setting a high bar for data protection globally. While not exclusively about cookies, its principles profoundly impact how they can be used if they process personal data.


Key Principles Impacting Cookies:


  • Lawful Basis for Processing: Consent is the most common lawful basis for using non-essential cookies. This consent must be freely given, specific, informed, and unambiguous.

  • Explicit Consent: Users must take a clear, affirmative action to consent to non-essential cookies. Pre-ticked boxes or Browse activity alone do not count as valid consent.

  • Transparency: Websites must clearly inform users about the types of cookies used, their purposes, the data they collect, how long it's stored, and any third-party sharing. This is typically done via a cookie policy and a clear, layered cookie banner.

  • User Rights: Individuals have the right to access, rectify, and erase their data, as well as withdraw their consent at any time, as easily as it was given.

  • Data Minimization: Only collect personal data via cookies that is necessary for the specified purpose.


Practical Example: A news website serving EU readers must display a cookie banner on a user's first visit. This banner must clearly differentiate between essential and non-essential (e.g., advertising, analytics) cookies. Users should be offered clear "accept all," "reject all," and "customize settings" options, with non-essential cookies inactive by default. The "reject all" option must be as prominent and easy to use as the "accept all."



ePrivacy Directive (The "Cookie Law")


Often dubbed the "Cookie Law," the ePrivacy Directive specifically addresses the privacy of electronic communications, including the use of cookies and similar tracking technologies. It works in conjunction with the GDPR. Despite long discussions about a new ePrivacy Regulation, the existing Directive remains the key legislation governing cookies in the EU.


Key Aspects:


  • Prior Consent: Requires obtaining user consent before storing or accessing information (like cookies) on a user's device, unless the cookie is strictly necessary for a service explicitly requested by the user.

  • Clear Information: Reinforces the GDPR's transparency requirements, mandating clear and comprehensive information about the purpose of cookies.

  • Focus on Tracking Technologies: Directly addresses cookies, device fingerprinting, and other online tracking methods.


Practical Example: An e-commerce site must not deploy analytics or marketing cookies until the user has actively consented through a compliant cookie banner. Simply informing the user that cookies are in use is insufficient; affirmative consent is required.



Navigating Privacy in North America: The California Example


While the US does not have a single federal law akin to GDPR, California has led the way with comprehensive consumer privacy legislation.


California Consumer Privacy Act (CCPA) / California Privacy Rights Act (CPRA)


The CCPA, enacted in 2020, was significantly amended and expanded by the CPRA, with most provisions effective from January 1, 2023. It grants California consumers specific rights over their personal information.


Core Provisions for Cookie Compliance:


  • Right to Know: Consumers can request to know what personal information is being collected about them (including via cookies), the sources, the purposes, and any third parties it's shared with or sold to.

  • Right to Delete: Consumers can request the deletion of their personal information.

  • Right to Opt-Out of Sale/Sharing: Businesses must provide a clear and conspicuous "Do Not Sell or Share My Personal Information" link, allowing consumers to opt out of the sale or sharing (for cross-context behavioral advertising) of their data, which often involves cookie data.

  • Consent for Minors: Specific opt-in consent rules apply to minors. Businesses need opt-in consent from consumers under 16 before selling/sharing their data (parental consent for under 13).

  • Sensitive Personal Information: Consumers have the right to limit the use and disclosure of sensitive personal information.

  • Transparency: Websites must provide a detailed privacy policy outlining data practices, including cookie usage.


Practical Example: A blog targeting Californian readers that uses third-party advertising cookies must feature a "Do Not Sell or Share My Personal Information" link in its footer and potentially on its cookie notice. The cookie notice should also inform users about the categories of cookies used and their purposes.



Post-Brexit: Cookie Compliance in the United Kingdom


Following its departure from the EU, the UK has incorporated GDPR principles into its own legal framework.


UK General Data Protection Regulation (UK-GDPR) & PECR


The UK-GDPR mirrors the EU GDPR. Alongside it, the Privacy and Electronic Communications Regulations (PECR) govern the use of cookies, similar to the ePrivacy Directive in the EU. The Information Commissioner's Office (ICO) is the UK's data protection authority and actively enforces these regulations.


Key Principles:


  • Essentially the same consent and transparency requirements for cookies as under the EU GDPR and ePrivacy Directive.

  • The ICO emphasizes that consent must be unambiguous and involve a clear affirmative action.

  • "Cookie walls" (forcing users to accept cookies to access content) are generally not considered compliant if they don't offer a genuine choice. The ICO has provided guidance on "consent or pay" models, requiring careful assessment.


Practical Example: A UK-based online retailer must ensure its cookie consent banner provides equally prominent options to accept or reject non-essential cookies and allows granular choices. They must also keep records of consent and make it easy for users to change their preferences. The ICO has been actively reviewing websites for compliance.



Latin American Privacy: Brazil's LGPD


Brazil has also established a comprehensive data protection law.


Lei Geral de Proteção de Dados (LGPD)


Brazil's LGPD, which came into effect in stages starting in 2020, is heavily influenced by the GDPR.


Core Provisions for Cookie Compliance:


  • Lawful Basis: Processing of personal data, including via cookies, requires a lawful basis, with consent being a primary one for non-essential cookies.

  • Consent Requirements: Consent must be free, informed, unambiguous, and provided for a specific purpose.

  • Transparency: Data subjects have the right to clear information about data processing activities.

  • User Rights: Includes rights to access, correction, anonymization, blocking, or deletion of unnecessary or excessive data.

  • Principle of Necessity: Data collection, including through cookies, should be limited to what is necessary to achieve the stated purpose. While the LGPD doesn't set a specific expiration time for cookies like some interpretations of EU law, the principle of necessity implies data shouldn't be kept indefinitely.


Practical Example: A Brazilian company using analytics cookies on its website must obtain clear consent from users, explaining what data these cookies collect and for what analytical purposes. Users should be able to refuse these cookies without detriment to accessing the website's core services.



Other Global Regulations and Emerging Trends


While the above represent some of the most influential regulations, many other countries and regions are enacting or strengthening their data privacy laws with implications for cookie usage. These include:



  • Canada: The Personal Information Protection and Electronic Documents Act (PIPEDA).

  • Asia-Pacific: Countries like Japan (APPI), South Korea (PIPA), Singapore (PDPA), and Australia (Privacy Act) have robust frameworks, with ongoing updates and maturing enforcement.

  • Africa: Nations like South Africa (POPIA) and Kenya (Data Protection Act) are implementing comprehensive data protection laws.


Common Themes and Global Trends:


  • Increased Emphasis on Explicit Consent: Moving away from implied consent models.

  • Greater Transparency Requirements: Users demand to know what data is collected and why.

  • Enhanced User Control: Providing users with meaningful choices and rights over their data.

  • Stricter Enforcement: Data protection authorities are becoming more active in auditing and penalizing non-compliance.

  • Rise of Privacy-Enhancing Technologies (PETs): Exploration of alternatives to third-party cookies and methods to enhance user privacy.

  • Focus on First-Party Data: Businesses are increasingly focusing on building direct relationships with customers and collecting data with clear consent.



Conclusion: Building Trust Through Compliance


Navigating the complex global landscape of cookie regulations requires a proactive and informed approach. Understanding the nuances of each relevant law – whether it's the GDPR in Europe, the CCPA/CPRA in California, the LGPD in Brazil, or the UK-GDPR – is fundamental. 


Beyond mere legal obligation, prioritizing transparent and user-centric cookie practices builds trust with your audience, enhances your brand reputation, and mitigates the risk of significant fines and reputational damage associated with non-compliance. 


As digital privacy continues to evolve, staying abreast of these regulatory frameworks and implementing robust compliance strategies will remain a key differentiator for successful and responsible organizations.



Frequently Asked Questions (FAQ)


Q1: Do all cookies require consent?A1: No. "Strictly necessary" or "essential" cookies, which are vital for the basic functioning of a website (e.g., session cookies for shopping carts, authentication cookies), generally do not require explicit consent under most regulations like GDPR/PECR. However, all other cookies (e.g., for analytics, advertising, social media) typically require prior, explicit consent.


Q2: What is a "cookie banner"?A2: A cookie banner (or pop-up/notice) is a notification displayed on websites when a user first visits. It informs users about the site's use of cookies, their purposes, and requests their consent for non-essential cookies in line with legal requirements.


Q3: What are the penalties for non-compliance with cookie laws?A3: Penalties vary by regulation but can be severe. For example, GDPR fines can reach up to €20 million or 4% of the company's global annual turnover, whichever is higher. Other laws like CCPA/CPRA also impose significant financial penalties.


Q4: How does "Do Not Sell or Share" under CCPA/CPRA relate to cookies?A4: Many advertising and tracking cookies involve the "sale" or "sharing" (for cross-context behavioral advertising) of personal information. The CCPA/CPRA requires businesses to offer an opt-out from such activities, which means providing a mechanism for users to stop these types of cookies from collecting and transferring their data.


Q5: Is implied consent (e.g., "by continuing to browse, you accept cookies") still valid?A5: Generally, no, especially under GDPR and similar high-standard regulations. These laws require explicit, affirmative consent for non-essential cookies. Simply continuing to use a website does not constitute valid consent.


Q6: How often should I review my cookie compliance?A6: Regularly. Privacy laws and regulatory guidance evolve. It's good practice to conduct periodic audits of the cookies your website uses, update your cookie policy and consent mechanisms accordingly, and stay informed about changes in relevant legislation. Using a Consent Management Platform (CMP) can help automate some of these processes.

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