Mariusz Brucki

portrait of Mariusz Brucki, Analytics Engineer at TAGGRS

Mariusz Brucki is the Founder of Measurelake.com and an Analytics Engineer with deep expertise in tracking, data pipelines, and server-side measurement. With roots in performance marketing, he builds ROI-focused solutions for marketers and agencies. Having worked with global brands like Greenpeace and Docplanner, he brings an AI-driven, privacy-aware approach to scalable analytics.

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Google Tag Gateway vs Server-side GTM: which one does your setup really need?

GTG or GTM? Here's how to tell which one you need.

How the TAGGRS Enhanced Tracking Script recovers your marketing data

Why Server-side Tracking can still lose data (and how the Enhanced Tracking Script fixes it)

Your server container is live. But ad blockers may still be blocking data before it ...

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Why your GA4 ROAS is inaccurate (and 2 structural fixes that help)

Two structural gaps in GA4 make your ROAS look better than it is. Here's how ...

ChatGPT ads

ChatGPT Ads are live. How to measure them?

Measure ChatGPT ads with UTMs, baselines, and lift tests.

Futuristic machine powered by data streams with two outputs: server-side and client-side

Server-side A/B testing: better experiments, better measurement

Server-side A/B testing improves accuracy, speed, and experiment reliability.

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How to implement tracking in vibe-coded apps

How to implement structured analytics in vibe-coded apps with GTM, dataLayer, and sGTM.

Chaotic, noisy clusters of jagged data particles on one side, gradually transforming into smooth, uniform data waves as they pass through a minimalist geometric filter. Represents filtering bots in GA4, robots.txt, and server-side.

Bot traffic: how it skews your marketing data and how to block it

Bots hurt analytics and drain ad spend. Filter now in GA4, robots.txt, and server-side.

A stylized, abstract vault made of interlocking shapes and soft gradients. Inside: glowing nodes representing PII. Outside: darkened data particles representing threats (breaches, identity theft). A metaphor for secure PII governance.

Understanding PII and global privacy laws in Marketing

What PII is, how laws protect it, and how marketers stay compliant.

A central geometric stabilizing structure (symbolizing browser window) reorganizing chaotic data clusters into precise, aligned rows.

The impact of AI Browsers on user tracking and attribution

AI browsers disrupt tracking, attribution, and analytics accuracy. Find 5 ways to restore data quality.

Two browsers windows with, respectively, a cross mark and a check mark. Over, the text "TAGGRS accurate tracking beyond ad blockers"

How to maintain accurate measurement and attribution despite ad blockers

The hidden cost of ad blockers on marketing data Ad blockers are silently draining the ...

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Safari 26 tracking changes: What’s new and how to adapt

(Updated January 2026 with a Safari 26 Tracking Validity Check — jump to that update ...