Mariusz Brucki

portrait of Mariusz Brucki, Analytics Engineer at TAGGRSLinkedIn
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.

Modeled conversions: What conversion modeling is and can you really trust it?

Conversion modeling is a platform's method of estimating conversions, or, more often, estimating attribution, when ...
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POAS vs ROAS: Which metric tells you if your ads are profitable?

You hit your ROAS target. Revenue looks fine. Then finance asks why the store still ...
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HubSpot Server-side Tracking: Setup guide for lead attribution

If you run marketing or sales through HubSpot, your lead data is only as good ...
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Google Enhanced Conversions not working? How to check your setup

In June 2026, Google Ads changed how Enhanced Conversions works. The two separate products, Enhanced ...
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Safari 27 tracking protection: What it means for conversion measurement

Safari 27 dropped as a developer beta in June 2026. The official release notes cover ...
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What are Google Enhanced Conversions and how Match Rate improve your biddings

Google Enhanced Conversions and match rate: How to improve your bidding

How Enhanced Conversions work and what drives match rate.
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Google Universal Commerce Protocol

Google Universal Commerce Protocol: the conversion tracking problem agencies need to solve now

UCP purchases bypass your analytics stack. Server-side tracking is the only fix.
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What Consent Mode V2 is, how does it work, and how to leverage it with Server-side Tracking

Google Consent Mode V2: Setup, signals and how to verify it

Consent Mode V2 is mandatory for EU advertisers. Here's what changed and how to set ...
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Ad blocker block consent banners too. The TAGGRS Enhanced tracking script makes your tracking resilient to the ad blockers. Even the most advanced ones.

Ad blockers don't just block tracking: they block cookie consent banners too

No consent signal fires? Server-side Tracking fixes it.
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Two laptop in an abstract landscape

Google Tag Gateway vs Server-side GTM: Which one do you need?

GTG or GTM? Here's how to tell which one you need.
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How the TAGGRS Enhanced Tracking Script recovers your marketing data

Why Server-side Tracking can still lose data to ad blockers (and how to close the gap)

Your server container is live. But ad blockers may still be blocking data before it ...
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Abstract geometric illustration representing the market trends

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 ...
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ChatGPT ads

ChatGPT Ads are live. How to measure them?

Measure ChatGPT ads with UTMs, baselines, and lift tests.
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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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Hands holding map and compass

How to implement tracking in vibe-coded apps

How to implement structured analytics in vibe-coded apps with GTM, dataLayer, and sGTM.
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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.
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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.
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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.
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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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Colorful compass icon on dark background

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 ...
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