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GDPR Compliant Cookie Policy: A Comprehensive Legal Guide for Websites
October 31, 2025 | BY Demirışık Hukuk
The European Union's General Data Protection Regulation (GDPR), in particular, aims to protect user privacy and imposes serious obligations on data controllers (site owners) with its strict rules on the use of cookies by websites. In this article, we will discuss in detail how to create a legally compliant cookie policy within the framework of GDPR.
Cookies and Their Place Under GDPR
Cookies are small data files saved to your computer or mobile device via your browser when you visit a website. Their primary function is to recognize you when you return to the site, remember your preferences (language selection, username, etc.), and provide a more personalized experience. However, cookies can collect personal data by tracking users' browsing habits, IP addresses, location information, and even their interests. This is where GDPR comes into play, defining any information relating to an identified or identifiable natural person as 'personal data.' Consequently, the use of cookies that collect personal data is subject to the strict rules of GDPR.
The Essentials of Valid Consent
According to GDPR, for all cookies other than 'strictly necessary cookies' (those required for the basic functionality of the site, e.g., shopping cart), valid, freely given, specific, informed, and unambiguous consent must be obtained from the user. For this consent to be considered valid, it must meet the following criteria:
Freely Given: The user must have the option to refuse cookies, and this refusal should not prevent them from accessing the site's basic services. An 'accept all' button should be as prominent as a 'reject all' button.
Specific: The user must be specifically informed about which cookies will be used for which purpose and give their consent accordingly. For example, separate consent should be obtained for analytical cookies and marketing cookies.
Informed: Before obtaining consent, the user must be provided with clear and understandable information about what data is collected, the purpose of its use, how long it will be stored, and whether it will be shared with third parties.
Requires a Clear Affirmative Action: Pre-ticked boxes or the assumption that continued use of the site constitutes consent (implied consent) are invalid under GDPR. The user must give consent through an active action (e.g., ticking a box or clicking a button).
What Should a GDPR-Compliant Cookie Policy Include?
A cookie policy published on your website is a requirement of the transparency principle and fulfills your obligation to inform your users. This policy should be easily accessible (usually via a link in the site's footer) and written in plain language. Your policy must include the following information:
Definition and Purpose of Cookies: Generally explain why you use cookies on your site.
Types of Cookies Used: List the cookies you use by categorizing them, such as necessary, performance, functionality, and marketing/targeting.
Detailed Cookie List: Provide information on each cookie's name, provider (first-party/third-party), purpose, and expiration period.
Consent Management: Clearly explain how users can change their cookie preferences and withdraw their consent.
Conclusion
GDPR has placed significant responsibilities on website owners regarding the use of cookies. Unlawful cookie usage can result in hefty administrative fines and can also damage a company's reputation and user trust. Therefore, conducting a cookie audit of your site, implementing a mechanism that obtains valid and transparent consent from users, and preparing a comprehensive cookie policy detailing this entire process are critically important for the legal compliance of your digital presence. Seeking professional legal support in these complex areas of data protection law will help you minimize potential risks.
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