Functional Cookies Examples

In the digital world, cookies often get a bad reputation. They are frequently associated with invasive tracking and third-party advertising. However, not all cookies are created equal. While some are designed to follow you across the internet, functional cookies are the unsung heroes of a smooth, personalized user experience.

If you are a business owner or a developer, understanding these cookies is essential for building a site that works correctly while maintaining transparency in your privacy notices and cookie transparency pages from Captain Compliance.

What Exactly Are Functional Cookies?

Before diving into examples, let’s define the term. Functional cookies are a specific category of cookies that allow a website to remember choices you’ve made in the past. Their primary job is to provide enhanced, more personal features.

Unlike “strictly necessary” cookies (which are required just to make the site load), functional cookies are not “essential” for the site to exist, but they are essential for the site to feel “smart.” Without them, a website would treat every visit as if it were the very first time you ever landed on the page.

The Core Difference: Necessary vs. Functional

• Strictly Necessary: These allow you to log in or hold items in a cart during a single session.

• Functional: These remember that you prefer “Dark Mode,” that you live in Miami, or that you want the site displayed in Spanish.

Real-World Functional Cookies Examples

To help you categorize these for your cookie consent banners and privacy policies, let’s look at how popular platforms like Shopify, WordPress, and HubSpot utilize them.

1. User Preference Memory (The “Personalizer”)

The most common use of a functional cookie is remembering how a user likes their interface.

• Language Settings: If a user selects “French” on a global site, a functional cookie ensures they don’t have to re-select it on every sub-page.

• Display Preferences: This includes things like font size adjustments or “Dark Mode” vs. “Light Mode” toggles.

• Region Selection: If your business has different pricing or shipping rules for Florida versus California, a functional cookie remembers the user’s region to show accurate data.

2. E-commerce and Cart Persistence

While a basic cart might be “strictly necessary,” many advanced e-commerce features are functional.

• Shopify Examples: Shopify uses cookies to keep a “persistent cart.” This means if a user adds a pair of shoes to their cart on Monday, closes the browser, and returns on Wednesday, the shoes are still there. This significantly improves the user experience and conversion rates.

• Recently Viewed Items: Functional cookies track which products a user recently looked at to display a “Recently Viewed” section at the bottom of the page.

3. Enhanced Interaction and Support

Modern websites use third-party tools to interact with customers. These tools rely heavily on functional cookies.

• HubSpot Chat Widgets: When you see a “Chat with us” bubble in the corner of a screen, that widget often uses a functional cookie to remember who you are. If you move to a different page, the chat history stays with you so you don’t have to explain your problem to the agent three different times.

• WordPress Commenting: In many WordPress setups, a cookie can remember a user’s name and email address when they leave a comment. This saves the user from re-typing their credentials the next time they want to join a discussion.

4. Multimedia and Video Players

If you embed videos on your site (like YouTube or Vimeo), these platforms often drop functional cookies.

• Playback Settings: These cookies remember where a user left off in a video or what volume level they prefer.

• Bandwidth Detection: They may detect the user’s internet speed to ensure the video doesn’t buffer, providing a seamless experience without the user having to manually adjust settings.

High-Level Implementation Logic

For developers, implementing functional cookies is less about complex coding and more about logic and persistence.

When a user makes a choice—like clicking “Dark Mode”—the website sends a small snippet of data to the browser. The logic follows a simple path:

1. Trigger: User interacts with a preference setting.

2. Storage: The browser stores this choice in a cookie with an expiration date (often 30 days to a year).

3. Recall: On the next page load, the website “asks” the browser if a preference cookie exists.

4. Action: If it exists, the website applies the setting before the page finishes rendering.

Pro Tip: To remain user-friendly, always ensure these cookies are set to “Secure” and “HttpOnly” where possible to prevent them from being intercepted by malicious scripts.

CCPA and Beyond

While we aren’t focusing strictly on the GDPR, businesses must be aware of the California Consumer Privacy Act (CCPA) and similar global standards.

Under the CCPA, functional cookies are generally viewed as less “risky” than tracking or advertising cookies. However, transparency is still the gold standard. You must inform users that these cookies are being used and explain what they do.

Cookie Consent and Choice

Even though functional cookies make a site better, many modern privacy frameworks require you to give users the option to turn them off.

• The Opt-In Model: Users see a banner asking if they accept functional cookies.

• The Opt-Out Model: Cookies are active by default, but the user can disable them in a “Privacy Settings” menu.

If a user disables functional cookies, your site won’t “break,” but it will feel “forgetful.” It is helpful to explain this to the user in your cookie consent manager: “Turning these off will mean we can’t remember your language or theme preferences.”

Why You Should Include This in Your Privacy Notice

Business owners often make the mistake of grouping all cookies into one “Tracking” bucket. This is a mistake for two reasons:

1. Trust: When you explain that a cookie is there to “remember your shopping cart,” users are much more likely to accept it than if you simply say “we use cookies.”

2. Clarity: Clear labeling helps you stay compliant with frameworks like the CCPA by proving you aren’t selling personal data, but rather using it to improve the service.

Recommended Structure for Your Notice:

• Name of the Cookie: (e.g., cart_id or theme_pref)

• Purpose: (e.g., “Remembers your selected website theme.”)

• Duration: (e.g., “Persistent – 1 year”)

• Provider: (e.g., “First-party” or “HubSpot”)

  

Functionality Cookies and Consent

Functionality cookies are the backbone of a high-quality user experience and do require consent as they are not set as required or essential. They transform a static website into a personalized tool that respects a user’s time and preferences. Whether you are managing a Shopify store, a WordPress blog, or a custom-built HubSpot integration, labeling these cookies correctly in your cookie consent banner is a win-win. It builds user trust and keeps your business on the right side of modern privacy expectations.

By focusing on how these tools help the user—rather than just how they help your data collection—you create a more transparent and welcoming digital environment. If you use the Captain Compliance cookie scanner you can see what functional cookies are running on your website.