Lenka Pittnerová

Analyst

Lenka brings PPC expertise to web analytics and data solutions, helping companies gain reliable data for better decisions.

Series Series 3 / 5

First-Party Data in Online Advertising, Part 3: Debugging – How to Verify Everything Work

Part 3 of our first-party data series: how to verify that data is correctly reaching Google and Meta — from DevTools to checks directly in the platforms.

1/6/2026

Series Series 2 / 5

First-party data in online advertising, part 2: How to collect it and send it to media systems

Complete technical guide to collecting first-party data via dataLayer, normalizing, hashing, and sending through server-side GTM to Google Ads and Meta.

2/4/2026

Series Series 1 / 5

First-party data in online advertising: part 1: How they work and why they improve the campaign performance

Learn how first-party data improves campaign performance, measurement accuracy, and cross-device tracking. Discover practical ways to collect and use it.

23/2/2026