CookieBanner

A cookie banner is a user interface element displayed on websites to inform visitors about the use of cookies and to obtain user consent for storing or accessing information on the user’s device. It is typically shown as a banner, bar, popup, or modal at or near first visit and may allow ongoing access to site functionality while consent is managed.

The primary purpose of a cookie banner is to support privacy law compliance. Laws such as the European Union’s GDPR and ePrivacy Directive require transparency about cookie usage and, for non-essential cookies, explicit user consent. In other jurisdictions, consent requirements vary. Banner implementations usually distinguish strictly necessary cookies from those that require consent, such as analytics or marketing cookies. Consent can be explicit opt-in with granular controls or, in some cases, implied, though modern practice favors explicit consent and the ability to withdraw it.

Typical features include information about cookie categories and purposes, options to accept all, reject all, or customize choices, and the ability to save preferences. Many sites integrate a consent management platform (CMP) to manage consent states, record the user’s choices, and apply them to future sessions. Banners should be accessible, allowing keyboard navigation and screen reader compatibility, and must allow users to revoke consent at any time.

Critics note that banners can disrupt user experience or be used to bypass meaningful consent. Regulations continue to shape best practices for design and enforcement. See also privacy policy and consent management platforms.