The End of Third-Party Cookies and the New Era of First-Party Data
With the gradual phasing out of third-party cookies and the increase in privacy restrictions imposed by browsers and legislation such as LGPD, first-party data has solidified as the main fuel for digital marketing strategies in 2026.
Companies that previously relied almost exclusively on third-party data to segment audiences and personalize campaigns have had to reinvent themselves. The good news is that first-party data is significantly more valuable: it is data that the customer has chosen to share with your company, resulting in greater accuracy, lower bounce rates, and more trust.
Strategies to Capture First-Party Data
1. Exclusive Content with Registration
Offer rich materials (e-books, whitepapers, reports) in exchange for contact data. The secret is to create content so relevant that the user wants to register voluntarily.
2. Loyalty Programs and Gamification
Programs that reward users for sharing data (such as consumption preferences, birthday, purchase history) generate a constant flow of valuable information.
3. Surveys and Polls on Social Media
Native tools on Instagram, LinkedIn, and YouTube allow for organic data collection while engaging the audience.
4. CRM Integrated with Data Sources
A well-configured CRM, such as Kommo, centralizes data from multiple sources (WhatsApp, email, website forms) into a single customer profile, continuously enriching the database.
How to Use First-Party Data in Practice
- Personalized segmentation: Create audiences based on real user behavior on your site or interactions with your brand.
- Smart remarketing: Use first-party data to create remarketing campaigns on Google Ads and Meta Ads without relying on third-party cookies.
- Content personalization: Adapt the website experience, emails, and offers based on each lead's stage in the journey.
- Lookalike from own databases: Create lookalike audiences from your best customers, using first-party data as a seed.
Tools for Managing First-Party Data
Platforms like Kommo CRM, HubSpot, and RD Station offer robust features for collecting, organizing, and activating first-party data. The integration between CRM, marketing automation, and advertising platforms is what allows for transforming raw data into high-performance campaigns.
Conclusion
The end of third-party cookies is not a threat — it is an opportunity for companies that build genuine relationships with their customers. First-party data is more accurate, more ethical, and generates superior results. At Agência Kaizen, we help companies structure strategies for collecting and activating their own data, integrating CRM, automation, and paid media.