What is a cookie banner?

The notice informs users about the use of cookies and gathers their choice before enabling them.

Definition

A cookie banner is a notice displayed to a website visitor informing them which cookies are used and for what purpose, allowing them to accept, refuse, or configure each category, and recording this choice as consent.

A valid banner is not just a warning. It needs to block unnecessary cookies until a choice is made, give the same prominence to "decline" as to "accept," allow customers to change their minds later, and keep a record of what was chosen, when, and with what text.

What does the LGPD say?

The rules come from article 8 of LGPD (free, informed and unequivocal consent, with the burden of proof on the controller) and the ANPD's Guidance Guide on cookies and personal data protection, available at ANPD websiteThe guide considers banners with pre-checked boxes, hidden opt-out options, or those that continue navigation as if by tacit acceptance to be inadequate. Article 9 requires that information about the processing be clear and easily accessible.

In practice

Show the categories and allow selection by category.
Give equal prominence to both "accept" and "reject," and do not use pre-checked boxes.
Block third-party scripts until consent is obtained and respect the revocation process.
Save the record: identifier, date, categories, and text version.

How Privacy Tools it deals with the topic

A Cookie Management and Policies It provides a banner with the site's visual identity, automatic cookie blocking, a version in multiple languages, and a record of each interaction as evidence; it is the same banner used on this site.

Updated October 3th, 2026.

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