Best Strategies for Retargeting without Cookies (2025)

Cookies help show you relevant ads by tracking your browsing. This common tactic, often known as retargeting, helps to remind past visitors about products. 

But, is it possible to achieve retargeting without cookies in 2025?

The answer is YES! 

Retargeting without cookies is a privacy-first promotion strategy that uses first-party data, contextual signals, and AI-powered predictions to re-engage website visitors. This is done by replacing traditional third-party cookie tracking.

The digital marketing world is evolving in 2025. With the outdated practice of third-party cookies, marketers must adopt new, privacy-first strategies that will keep their retargeting campaigns effective.

This is why in this comprehensive guide, I will explain the top cookieless retargeting strategies. I have provided a step-by-step framework for setting them up in Google Analytics 4 (GA4) as well. Let’s begin!

What is Retargeting Without Cookies?

This cookieless retargeting is a privacy-friendly way to reconnect with your audience without relying on third-party cookies. Instead of tracking people across the web, it uses data you already own and smart signals to show them relevant ads.

The key difference between these two is that traditional retargeting follows users everywhere. While cookieless retargeting respects privacy, it is still helping you reach the right people with personalized ads.

This means that people won’t have to accept third-party cookies anymore; with cookieless retargeting, users have more privacy over their browsing choices. This ensures only personalized ads that would be relevant to the site you are surfing. 

Why Cookieless Retargeting Matters in 2025

The future of retargeting in a cookieless world is no longer a distant concept. Google is slowly disabling third-party cookies in Chrome, following Safari and Firefox.

Why does this shift matter?

• User Privacy Regulations: Laws like GDPR and CCPA require explicit user consent for data tracking.
• Browser Changes: Major browsers now block third-party cookies by default.
• Consumer Demand: Users want more control over their data and more transparent advertising.

Adopting privacy-friendly retargeting methods not only saves your advertising efforts but also builds trust with your audience and ensures compliance with privacy-related regulations.

5 Best Cookieless Retargeting Strategies

To run effective retargeting campaigns without the involvement of third-party cookies, I have combined the top strategies for retargeting in a cookieless world. Let’s explore these methods for cookieless retargeting:

1. Contextual Retargeting without cookies

Contextual retargeting without cookies occurs when ads are placed on websites based on their content type, rather than the user’s past behavior.

How it works:

• An ad platform (like Google Display Network) scans a webpage’s content.
• Your ad appears if the content is relevant to your product or service.

Example: A blog post about “best running shoes” displays ads for your sports apparel store.

Best for: This increases brand awareness and reaches users based on their current interests.

2. First-Party Data Retargeting

First-party data retargeting is the basis of cookieless retargeting. You use data collected directly from your audience with their consent. This type of retargeting ensures privacy-compliant laws and regulations.

Sources to collect first-party data:

• Website logins and user profiles.
• Email newsletter subscriptions.
• Past purchase history (CRM data).
• Customer feedback surveys.

You can upload this data to ad platforms (e.g., Google Ads Customer Match) to create targeted audiences for retargeting ads without the use of third-party cookies.

3. GA4 Event-Based Retargeting

GA4 retargeting without cookies is a built-in solution. GA4 uses an event-based model that doesn’t rely on third-party cookies for audience building.

You can create specific audiences based on user actions, such as:

• page_view events for specific pages.
• Click events on key buttons (e.g., “Add to Cart”).
• purchase or begin_checkout events.
• Custom events like file_download or video_view.

These audiences can be directly exported to Google Ads for retargeting.

4. Predictive Audiences

Oftentimes, many platforms use machine learning to find new users who are most likely to reach your best existing customers. This predictive approach helps convert larger potential targets that could increase conversions.

How it works:

• You provide a “seed audience” (e.g., a list of high-value converters from your first-party data).
• The ad platform analyzes the traits of this audience.
• It then finds and targets new users with similar characteristics, enabling proactive cookieless retargeting.

5. Server-Side Retargeting

Server-side retargeting improves data privacy and precision by managing data collection on your server end instead of the user’s browser.

Here’s how it works:

• Increases data reliability and lowers ad blocker interference.
• Allows you to securely send conversion data to ad platforms.
• It is a core technical setup for the future of retargeting.

How to Set Up Retargeting in GA4 Without Cookies (Step-by-Step)

After learning the different techniques used for retargeting without cookies, we are going to learn how to set up retargeting in GA4 without cookies.

This section will provide you with step-by-step guidance to implement GA4 retargeting without cookies using event-based audiences.

 Step 1: Enable Google Signals in GA4

1. Go to Admin

Then, navigate to Data Collection.

2. Turn on Google Signals.

This lets GA4 use signed-in Google account data (consent-based) for cross-device and cookieless retargeting.

Step 2: Link GA4 with Google Ads

1. In GA4, go to Admin>>Product Links

Then, navigate to the Google Ads Links.

2. Click “Link” and choose your Google Ads account.

Once your Google Ads account is linked, this is what it might show for you.

 Step 3: Build a Retargeting Audience in GA4

1. In GA4, go to the Admin >> Audiences section.

2. Click New audience >> Create custom audience.

3. Define your conditions, for example:
   
   • Users who added items to their cart but did not make a purchase.
   • Users who visited in the last 7 days but did not convert.

Once saved, this audience automatically syncs with Google Ads.

 Step 5: Ensure Privacy and Consent

• Use a Consent Management Platform (CMP) on your site to collect user consent.
• GA4 will respect user choices (cookieless audiences rely on modeled data if cookies are denied).

By following these steps, you can set up cookieless retargeting in GA4 with ease. This way, you’ll still be able to re-engage your visitors, remind them about your products or services, and boost conversions, all while staying privacy-friendly.

Alternatives to Cookies for Retargeting Ads

Beyond the strategies we have thoroughly discussed above, here are other effective methods you can utilize for retargeting without cookies:

• Contextual Advertising: This is one of the simplest alternatives—target users based on the content they are currently consuming.
• Email Retargeting: Use your first-party email lists to run personalized campaigns on platforms like Facebook or via email marketing.
• Consent-Based Tracking: Implement a clear consent banner (CMP) to gather first-party data for retargeting legally.
• Unified ID 2.0: An industry initiative that uses anonymized email-based identifiers as a cookie alternative (requires user consent).

How Analytify Offers Retargeting Tracking in WordPress

Tracking the correct data is the first step to successful cookieless retargeting strategies. This is where Analytify makes your workflow efficient.

Analytify is a WordPress plugin that brings accurate, actionable GA4 data directly to your WordPress dashboard.

For retargeting without cookies, Analytify brings you:

• Identify High-Value Pages: Quickly see your most-visited pages to inform your contextual retargeting strategy.

• Track Key Events: Monitor crucial user actions (clicks, form submissions, downloads) without needing complex code, providing the clean first-party data needed for audience building.

• Understand Audience Behavior: Get dynamic, real-time reports on user demographics and interests directly in WordPress, helping you create more accurate predictive audiences.

Instead of navigating the complex GA4 interface, Analytify surfaces the data you need to build effective retargeting audiences in minutes.

FAQs on Retargeting Without Cookies

Final Thoughts: The Future of Retargeting without Cookies

The shift to retargeting without cookies is an opportunity, not a setback. It drives marketers toward more ethical, transparent, and practical strategies that respect user privacy.

The brands that will win are those that build direct relationships with their audience and collect first-party data with clear value exchanges. They will implement modern tools like GA4 and Analytify to make data-driven decisions.

Start building your first-party data strategy today. Audit your website’s data collection, set up key events in GA4, and explore the concept of contextual advertising. That’s all for this article.

For more related posts, check out:

• Google Ads Remarketing and Retargeting
• What is Remarketing with Google Analytics?
• How to Make Your WordPress Website GDPR-Compliant

Ready to future-proof your ads? Launch your cookieless retargeting strategy today and share your results in the comments!