What Are Tracking Cookies? How They Work (2026 Guide)

What are tracking cookies

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Summary

Tracking cookies are small browser files that track user activity to personalize content, measure website performance, and support targeted advertising. 

They help businesses understand user behavior but must be used responsibly to protect privacy. Many privacy laws, including the GDPR and CCPA, regulate their use by requiring transparency and user consent. Following these requirements helps businesses stay compliant while building trust with their website visitors.

Want to understand the concept behind tracking cookies?

Every time someone visits a website, small pieces of data may be stored in their browser to improve their browsing experience. Some cookies remember preferences, while others serve more advanced purposes behind the scenes. 

Among them, tracking cookies have become one of the most talked-about types because of their role in online advertising, analytics, and data privacy.

As businesses rely more on data and privacy regulations continue to evolve, understanding tracking cookies is important for both website owners and users. In this guide, we’ll explain what tracking cookies are, how they work, and what you need to know about using them responsibly.

What are Tracking Cookies?

Tracking cookies are small pieces of data stored on a user’s web browser by websites they visit. 

These cookies serve various purposes, including helping websites function properly, remembering user preferences, and enhancing the overall online experience. 

Specifically, tracking cookies, a subtype of internet cookies, are extensively used for analytics and advertising. They track users as they navigate the web, collecting information about their online habits, past website visits, and purchase history.

This information helps businesses understand user interests, personalize experiences, measure campaign performance, and deliver more relevant advertisements.

How Do Tracking Cookies Work?

The process typically looks like this:

How tracking cookies work in the background
  1. A user visits a website.
  2. The website places a tracking cookie in the user’s browser.
  3. As the user continues browsing, the cookie records interactions such as pages viewed, products clicked, or time spent on the site.
  4. When the same user visits other websites that use the same advertising or analytics network, the cookie recognizes the browser.
  5. The collected information helps create personalized experiences, measure campaign performance, and display more relevant advertisements.

What are Third-Party Cookies?

Unlike first-party cookies, which are created by the website a user is visiting, third-party cookies are placed by external services such as advertising networks, analytics providers, or embedded social media platforms.

These cookies are commonly used for advertising, audience measurement, and cross-site tracking.

In many cases, tracking cookies operate as third-party cookies because they’re installed by external services rather than the website itself. Their primary purpose is to collect browsing data that can be used for personalized advertising and retargeting.

Although they help improve marketing performance, their use is regulated by privacy laws such as the GDPR and CCPA to protect users’ personal information and privacy rights.

What Information Do Tracking Cookies Collect?

Tracking cookies follow users across the web, gathering data such as websites visited, products purchased, and interactions with advertisements. 

What information do tracking cookies collect

This provides companies with information regarding users’ actions and helps them take the necessary actions to improve their marketing strategy.

Examples of the information stored include:

  • Device type
  • Browser information
  • IP address
  • Browsing history
  • Pages visited
  • Clicked links
  • User preferences
  • Email address (when voluntarily provided)
  • Purchase history

Are Tracking Cookies Dangerous?

Tracking cookies are not inherently dangerous when used responsibly and in compliance with applicable privacy laws.

They do not install malware or damage a user’s device. Instead, they’re designed to collect browsing information that helps websites personalize content, analyze traffic, and improve advertising.

Privacy concerns arise when users aren’t informed about data collection or aren’t given meaningful control over how tracking cookies are used.

To address these concerns, website owners should:

  • Clearly explain their cookie usage.
  • Obtain user consent where required.
  • Allow users to manage their cookie preferences.
  • Maintain compliance with applicable privacy regulations.

These practices not only improve transparency but also help build user trust.

Does Your Website Use Tracking Cookies?

WPLP Cookie Consent banner image

Detecting tracking cookies on your website involves manual cookie audits or automated tools. By inspecting your website’s cookies, you can identify their purpose and categorize them into essential, performance, analytics, advertising, social networking, or unclassified.

There are multiple tools like WPLP Cookie Consent that offer exclusive features like cookie scans that can help streamline this process. This WordPress plugin helps you to understand and manage the cookies used on your website.

GDPR and CCPA on Tracking Cookies

The General Data Protection Regulation (GDPR) requires active opt-in consent from users before placing tracking cookies on their browsers. 

Additionally, users have the right to request the deletion of their data, emphasizing the importance of user consent and robust data protection measures.

Contrarily, the California Consumer Privacy Act (CCPA) mandates the collection of personal information, including data from tracking cookies. Websites must provide opt-out mechanisms for users concerning the use of these cookies for targeted advertising.

How to Make Your Website Legally Compliant

Obtaining user consent is a critical aspect of using tracking cookies. Compliance solutions like the WP Cookie Consent plugin enable website owners to configure settings based on user location, block cookies, and provide users with a customized cookie banner, policy, and consent preference center.

WPLP Cookie Consent is an all-in-one solution that helps you to create a fully customizable cookie consent banner and comes with features like a preview banner, cookie scan, geo-targeting, consent log, opt-out request, and much more.

This plugin helps you stay legally compliant with various global laws such as GDPR, CCPA, etc.

FAQ

1. Are tracking cookies legal?

Tracking cookies are legal when used in compliance with data privacy laws, which typically require informing users, obtaining consent, and providing opt-out options.

2. What data do tracking cookies store?

Tracking cookies can store various user information, including device type, name, preferences, IP address, email address, browsing history, and interactions with advertisements.

3. Are tracking cookies dangerous?

Tracking cookies are not inherently dangerous. Still, concerns arise about privacy, necessitating the safeguarding of user information and compliance with data privacy laws.

4. What’s the difference between tracking cookies and third-party cookies?

Tracking cookies describe what a cookie does, while third-party cookies describe who sets the cookie.

Many tracking cookies are third-party cookies because they’re placed by advertising or analytics providers. However, first-party cookies can also be used for tracking and analytics on a single website.

5. Can websites track me if I block cookies?

Blocking tracking cookies significantly reduces online tracking, but it doesn’t eliminate it completely.
Some websites may use alternative techniques such as browser fingerprinting, server-side analytics, or first-party data collection to understand visitor behavior. These methods are generally subject to applicable privacy laws.

Conclusion

Websites deploy tracking cookies to enhance user experiences and refine marketing strategies. 

Responsible use involves addressing privacy concerns, complying with global data privacy laws, and employing compliance solutions to ensure the ethical and legal deployment of cookies.

WordPress plugins like WP Cookie Consent help address legal complications by allowing you to build a unique cookie consent banner for your website. Following the banner, they also provide various features like script blocker, consent log, geo-targeting, and much more.

Your website visitors can provide consent using the cookie banner only after which you’ll be able to track the user data. This way, you’re not only staying legally compliant but also gaining their trust.

If you’ve liked reading this article, check out our other engaging articles as well:

Want a feature like cookie scanning? Grab the WPLP Cookie Consent plugin now!

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WRITTEN BY

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Editorial Team

The WPLP Editorial Team is a group of experienced WordPress professionals, legal compliance experts, and content strategists dedicated to helping website owners navigate the complex world of online legal requirements. With years of hands-on experience in website compliance, privacy laws, and WordPress development, our team ensures that every piece of content is accurate, practical, and easy to implement.

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