Cookie Banner Guide:
What it is and Why your website needs it

Today, several data privacy legislations govern millions of companies and safeguard the information of billions of people worldwide. This environment is in a state of perpetual change, not just due to amendments to current legislations and the enactment of new ones but also due to changing business practices and advances in data collection, storage, and utilization technologies.

Privacy experts and beginners alike have worked assiduously to find the optimal means of complying with the rising and sometimes conflicting needs of data privacy legislation in various jurisdictions. Though the regulatory landscape is ever-changing, a number of best practices have arisen particularly, the use and maximization of cookie banners. Data protection legislation often mandates that companies inform web site visitors how they use data collection technologies (e.g., third-party and first-party cookies).

They have to make sure that there are clear and readable links to their privacy policies as well. And they must provide ways for visitors to manage their consent opting in or out of data collection based on the particular legal scheme under which they operate.

Cookie banners have become a widely adopted tool to meet these requirements effectively and unobtrusively.

In this article, we’ll explore the function and necessity of cookie banners, assess whether your website needs one, and provide guidance on implementing a cookie banner on your website that ensures compliance with your local data protection authority’s requirements and aligns with best practices.

A cookie banner refers to a notification or pop-up message that displays on your screen the first time you visit a site. A cookie notice explaining the use of cookies by a website, soliciting your user consent, or both is commonly contained in the cookie banner.

Cookie banners are a central part of consent management, an activity that requires soliciting, logging, and responding to web site visitors’ preferences about information collection. A full-fledged consent management platform generally encompasses cookie banner capabilities as a method for collecting visitor approval.

These banners may be in different formats: some are basic cookie banners that expire on their own, while others need interaction, like tapping a button to agree to the use of certain categories of cookies. The regulations for cookie banners differ by jurisdiction, as different legal schemes place varying obligations.

Depending on the cookie consent banner type and relevant cookie laws, website users can be prompted to choose which cookies they accept or customize their cookie settings.

A strong consent management tool will have provisions to classify cookies and provide a preference center in which visitors can refresh, add, or withdraw consent for various types of cookies. Certain cookies are necessary for the site’s functionality-like remembering products in a shopping cart-while others are employed for marketing, personalization, or analytics, which visitors can opt to block, or permit based on their preferences.

Last but not least, these banners usually contain a link to the cookie policy, which gives a comprehensive overview of all the cookies on the site, their uses, and so on. Having the cookie policy easily accessible and periodically updated is important to uphold transparency and compliance.

In today’s digital landscape, privacy laws such as the GDPR (General Data Protection Regulation) and the California Privacy Rights Act (CPRA) mandate strict guidelines on how websites collect and process user data. One critical aspect of compliance is obtaining user consent before processing personal data, which is often achieved through cookie banners.

Cookie banners are now a common feature on websites across the globe. They play a vital role in protecting privacy, transparency to users, and data security as a whole. Here, we discuss the most important reasons why cookie banners are necessary and how they assist businesses in complying with legal and ethical requirements.

Most international privacy legislation demands that websites notify users of cookie use and receive permission prior to storing non-essential cookies. Non-compliance can lead to significant fines and legal proceedings.

GDPR (General Data Protection Regulation- EU & EEA)

• Requires explicit, informed, and freely given consent before using non-essential cookies (e.g., marketing, analytics).
• Users must be able to reject cookies as easily as they accept them.
• Websites must provide a clear explanation of the purpose of cookies and allow users to change preferences anytime.

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

• Gives users the right to opt out of data collection, including cookies used for targeted advertising.
• Requires websites to display a “Do Not Sell or Share My Personal Information” link if they sell data.

LGPD (Lei Geral de Proteção de Dados – Brazil)

• It requires clear and detailed information on data collection via cookies.
• Users must be able to freely provide or refuse consent.

PIPEDA (Personal Information Protection and Electronic Documents Act – Canada)

• Requires transparency in data collection and use.
• Users must be informed about how their data is processed and given a choice to accept or reject cookies.

• Cookie banners empower users by providing control over their personal data.
• Users can accept, reject, or customize cookie settings based on their privacy preferences.
• This helps prevent unauthorized tracking and intrusive advertising.

• Users are more likely to engage with websites that clearly disclose their data practices.
• A well-designed cookie banner improves brand reputation by showing commitment to privacy.
• Transparency in cookie policies fosters long-term customer loyalty.

• Regulatory bodies have imposed multi-million-dollar fines on companies for non-compliance with cookie laws.
• Examples:
  • Google (€150M fine in France for non-compliant cookie banners)
  • Amazon (€35M fine for cookie violations under GDPR)
• Ensuring proper consent mechanisms helps businesses avoid costly penalties.

• A well-designed cookie banner allows users to customize their preferences and accept only the cookies they are comfortable with.
• A non-intrusive design ensures seamless browsing without disrupting user experience.
• Clear language and an easy opt-out option improve accessibility and fairness.
• A preference center enables users to update cookie settings anytime, enhancing trust.

An effective cookie banner ensures legal compliance, enhances the user experience, and builds trust by providing clear and accessible choices. Below are the key elements that make a cookie banner both compliant and user-friendly:

• Use simple, easy-to-understand wording to explain cookie usage.
• Avoid complex legal jargon that may confuse users.

• Provide users with multiple choices: Accept all, reject all, or customize cookies.
• Allow selection of cookie categories such as essential, marketing, analytics, and functional.

• Ensure a visible and accessible “Reject All” button alongside the “Accept All” option.
• Users should be able to decline non-essential cookies effortlessly.

• The banner should be well-placed without disrupting website navigation.
• Use neutral colors and readable fonts to maintain a professional look.

• Include a link to a comprehensive cookie policy explaining:
  • Types of cookies used
  • Purpose of each cookie category
  • Data retention and third-party sharing details

Cookie banners exist in a number of different shapes and designs. The majority of providers permit you at least some degree of basic customization, although they shouldn’t allow so much customization that your banner is no longer compliant. Examples would be modifying colors and fonts to align with your branding or inserting your own logo.

Placement-wise, cookie banners can be in the center of the page, bottom, or top. The most important thing is that the visitor has to engage with the banner, particularly in jurisdictions where opt-in consent is necessary.

The different data privacy regulations across the globe generally mandate one of two forms of consent: opt-in or opt-out. But what does that imply for your cookie banner?

Depending on the regulation, companies might have to adopt an opt-in/opt-out banner or cookie policy in order to be compliant.

Opt-in consent is used more frequently outside the U.S. and involves visitors consenting to data processing prior to any such action taking place. The GDPR in Europe and the LGPD in Brazil are two regulations that call for compliant cookie banners.

An alternative expression to opt-in consent is explicit consent. It is where the banner does not take for granted website visitors’ giving of consent to data collection unless they give it explicitly. It is always in force until the visitor has done something about it, and many allow visitors to choose which cookie categories they agree or disagree with.

In opt-in or explicit consent models, you can only load necessary cookies for a new visitor. Once they agree to non-essential cookies, you can load those too.

Opt-out consent is more prevalent in the United States and also referred to as implicit consent. You must disclose using cookies but can presume consent until the visitor withdraws permission.

A classic example is a banner reading, “By proceeding to use this website, you agree to the use of cookies.” Such banners are not compliant under more stringent legislation like the GDPR or LGPD. They can still be allowed under certain U.S. legislation, such as the CPRA, though even in the U.S., the direction is towards more express forms of consent, especially in states like California and Virginia, where more stringent regulations apply.

All businesses have different privacy requirements, and doing a cookie consent solution is based on whether you implement an out-of-the-box solution or create one from scratch. In case you want to have a seamless ready-to-use solution, Mandatly’s Consent Management Platform (CMP) provides an easy setup and high-capacity compliance tools.

Mandatly’s cookie consent solution can be deployed within minutes with just one line of JavaScript inserted into your website header. Configuration takes only a handful of easy steps, so even small businesses can be compliant—no technical knowledge needed!

(To see an easy-to-follow guide, look at our CMP Setup Guide.)

Mandatly automatically detects a visitor’s location and displays the appropriate cookie banner based on their jurisdiction. Whether your users are in the EU (GDPR & EPrivacy Directive), California (CCPA/CPRA), Brazil (LGPD), Canada (PIPEDA), or other regions, Mandatly ensures compliance with the latest regulations.

Companies can customize their cookie banner to fit their brand without sacrificing compliance. In contrast to other solutions that have free-form modification allowance, Mandatly has compliance guardrails built-in, avoiding unintended non-compliance that comes from over-customization.

Most consent management platforms leave it up to users to comprehend intricate privacy regulations in order to stay compliant. With Mandatly, you don’t have to stress-we’ve incorporated our privacy knowledge into the platform. Mandatly applies the right consent rules automatically, ensuring compliance without extensive legal knowledge.

In an increasingly regulated digital environment, cookie banners have evolved from being merely a best practice to becoming a legal necessity in many jurisdictions. Whether your website visitors are from the EU, the US, Brazil, Canada, or beyond, respecting their privacy rights is more than just an obligation, it’s a reflection of your organization’s commitment to transparency, trust, and ethical data use.

As demonstrated in this guide, a compliant cookie banner does far more than inform users; it empowers them to make informed decisions about their data. From granular consent options and clear opt-out mechanisms to jurisdiction-specific compliance, every element of a cookie banner must be purposefully designed to meet both legal and user experience expectations.

Achieving compliance doesn’t have to be complex. With solutions like Mandatly’s Consent Management Platform, businesses can take the guesswork out of privacy compliance.

Request a Demo – See how it works for your business.