Five services. One expert. No BS.
Everything I do is designed to give you one thing: reliable data you can act on. Monthly subscriptions, async delivery, transparent pricing. No lock-in.
Consent & Compliance Retainer
This is the one service on this page where you're buying a transfer of risk, not hours of work. I keep your Consent Mode v2 signals and stored consents correct - and I keep the evidence trail that proves it.
What's included every month
- Continuous verification of Consent Mode v2 signals and consent state
- An audit log maintained as evidence you can hand to a regulator on request
- Quarterly review of regulatory changes and their impact on your configuration
- A documentation pack prepared for a supervisory-authority query
- A named consultant accountable for the correctness of the configuration
Who this is for
EU businesses running ads under Consent Mode v2, where a consent gap is a legal and financial exposure - not just a tracking bug.
Tracking Assurance (GTM + GA4)
Breakage detected within 4 hours and fixed within 48 hours - or that month is free. That's the commitment, priced to the size of your ad spend. GTM and GA4 break silently with every CMS update, consent change and new campaign; this catches it before the broken data reaches your decisions.
What's included every month
- Continuous automated checks of tags, triggers, variables and the data layer
- Consent Mode v2 signal verification
- GA4 event, conversion and attribution integrity checks
- Config changes included each month (2h Small, 4h Medium)
- Monthly written summary of what was checked, found and fixed
Priced by your ad spend
- Up to €10,000/mo ad spend - €390/month
- €10,000-€50,000/mo - €790/month
- €50,000+/mo - from €1,500/month
Agency Oversight
Your agency has a conflict of interest. They're paid to run your campaigns - and they report on how well those campaigns perform. Who checks their work independently? That's where I come in.
What's included every month
- Cross-referencing agency reports with raw GA4 and tracking data
- Conversion attribution verification - is the agency counting conversions correctly?
- Budget efficiency analysis - where is spend going vs. what's converting?
- Audience overlap and campaign logic review
- Written report with specific findings and questions to put to your agency
Who this is for
Businesses spending €10,000 or more per month on paid ads through an agency. At that level, an independent check is one of the highest-ROI things you can do.
Data Ownership Retainer
For companies where the board makes budget decisions off marketing reports - and the numbers from different systems don't agree. I make one set of numbers the truth.
What's included
- Monthly reconciliation of reported numbers against your source system (ERP/CRM), with every discrepancy explained
- A single source of truth for sales and marketing data (SSOT)
- Server-side tagging, BigQuery pipelines, and unification of GA4 + CRM + ad platforms
- A named consultant accountable for the correctness of the reported numbers
Who this is for
Companies whose leadership sets budgets from marketing reports, and where platform, backend and finance numbers currently disagree.
"Piotr is an excellent data expert - very engaged and proactive. He delivers actionable insights, not just information. I truly valued working with him while managing digital business at Carrefour."
"Analytical thinking, holistic perspective, fast decisions - that's what working with Piotr looks like. Highly recommended."
Measuring traffic from AI models
GA4 misfiles traffic from ChatGPT, Claude, Perplexity, Gemini and AI Overviews as referral or direct - and can't tell an autonomous agent from a human. I make that channel visible, attributable, and separated from agents. Measurement only, not model visibility.
Specialist Engagements
Standard monitoring has limits. When you need something built - server-side infrastructure, BigQuery pipelines, Adobe Analytics, or bespoke consent logic - that's project work: scoped, fixed-price, no open-ended hourly billing.
What I cover
GTM Server-Side, BigQuery pipelines and cost optimization, Adobe Analytics, AEP Tags (Adobe Launch), Adobe Experience Manager, PowerBI, Looker Studio, Python and R - implementation, migration, auditing and reporting.
How it works
It starts with a scoping call. I scope the project, estimate the work and send a fixed-price proposal. Subscribers on Tracking Assurance get a lower escalation rate - €110/h versus the €140/h list rate - a deliberate benefit of being on a subscription.
Not sure which service you need?
Start with a free GTM audit - it takes 30 seconds and shows you exactly where your tracking stands.
Run the free auditNo signup required · 100% free · No obligations