First-party cookies are small text files set directly by the website you are currently visiting. They store information such as language preferences, login status, or shopping cart content, improving the user experience by making it more convenient and personalized.
Unlike third-party cookies, they are not placed by external domains or advertisers but are created solely by the website shown in the browser's address bar. This makes them more privacy-friendly and less controversial in terms of tracking and data profiling.
They are commonly used to remember returning users, assist navigation, or maintain form inputs and cart contents across pages. In many cases, they are essential for basic website functionality.
Even with growing data protection regulations such as the GDPR and the decline of third-party cookies, first-party cookies remain allowed – especially when technically necessary or based on valid user consent.