“… our company increased the ROI of our Google Ads by an impressive 300% thanks to Mijo's optimization suggestions. Particularly valuable was his analysis, which revealed that 40% of our budget was simply wasted …”
Website tracking across all platforms: server-side when it counts.
Standard tracking often loses 25-45% of conversions in my practice: through iOS-14, cookie consent refusals, cross-device gaps. I build platform-agnostic architecture that delivers clean data back to all ad systems: Smart Bidding, Performance Max, lookalikes all work again with real signals.

20 min · Google Meet · directly with Mijo
Fixed-price offer usually within 48h after receiving all necessary info.

Who does it
Mijo Jurisic, Google Ads consultant, founder of MJ Marketing.
Working in Google Ads since 2021: self-taught on own online projects, deep dive into auction mechanics, conversion tracking and search-engine logic. 2023-24 as a Google Ads consultant on behalf of Google, responsible for direct Google Ads customers and top agencies in the DACH region. Across my career, 500+ Google Ads accounts and €22M in media budget under direct responsibility.
Since 2024 I have run MJ Marketing as its owner: I work directly with SMEs and local service providers, and I still work with enterprise clients and agencies. No junior handover. No lock-in.
Mijo Jurisic
Three typical mandates
From audit to server-side architecture.
- Format 1
Tracking audit
Inventory: which platforms track already, where data is lost, which conversions are double-counted. Output: 8-area audit report with prioritised fixes. Fixed price, usually 5 working days.
- Format 2
Multi-platform setup
Full build across all relevant platforms: GTM, GA4, Google Ads Enhanced Conversions, Meta Conversions API, LinkedIn Insight Tag, TikTok Pixel + Events API. Including Consent Mode v2 + handover docs. Usually 3-4 weeks delivery.
- Format 3
Server-side architecture
When browser tracking isn't enough: server-side container (Cloud Run), iOS-14 loss recovery, cross-device identifier stitching, first-party data pipelines. Usually 4-6 weeks, for e-com + complex funnels.
Illustrative tracking projects
What I typically build.
Illustrative tracking scenarios from practice: what is typically missing and how much conversion data can be recovered.
Illustrative scenariosE-Commerce · fashion DTC
Illustrative scenario- Format
- Server-side / 5 weeks
- Before setup
- Browser-only tracking
- iOS-14 gaps 38%
- Meta CAPI not active
- After setup
- Conversions recovered62%94%
B2B services · SaaS comparison platform
Illustrative scenario- Format
- Multi-platform / 4 weeks
- Before setup
- Only GA4
- LinkedIn pixel misconfigured
- TikTok tracking never activated
- After setup
- Platforms clean1 of 44 of 4
Practice · multi-location
Illustrative scenario- Format
- Audit + setup / 3 weeks
- Before setup
- Call conversions lost
- Location attribution missing
- GA4 default setup
- After setup
- Call tracking captured0%100%
Coaching · online programme
Illustrative scenario- Format
- Server-side / 4 weeks
- Before setup
- Webinar funnel untracked
- Upsell conversions duplicated
- Refunds unassigned
- After setup
- Funnel steps visible3 of 88 of 8
Insurance broker · DACH
Illustrative scenario- Format
- Multi-platform / 3 weeks
- Before setup
- Form submits deduplicated
- Phone calls unattributed
- Cross-domain stitching
- After setup
- Cost-per-Lead accuracy±42% drift±9% drift
Pharma OTC · healthcare brand
Illustrative scenario- Format
- Server-side / 6 weeks
- Before setup
- Healthcare policy risks
- Consent refusals 71%
- Brand-safe setup
- After setup
- Compliance + performanceTracking inactiveLive, audit-proof
Three principles
Platform-agnostic, cleanly documented.
Classification first
I map every tag, cookie, third-party script before configuring. Only then do we talk banner copy or server-side. Most weak tracking setups I see skip exactly this step.
Custom over templates
Hand-built GTM architecture with consistent naming convention. No auto-track templates that look like much but deliver data garbage. Your team can maintain it later. That's the explicit goal.
Server-side where it pays off
Server-side isn't for everyone. I build it for e-com, long conversion paths, apps with iOS share >40%, multi-domain setups. For simple lead-gen sites, custom GTM browser-side often suffices.
Pricing
Three tiers: audit, setup, architecture.
Fixed price per mandate. Payment before project start. Handover documentation always included.
- 8-area audit report
- Platform coverage check
- Prioritised fix list
- 30-min walkthrough call
- GTM + GA4 + 3-4 ad platforms
- Consent Mode v2 clean
- Enhanced Conversions / CAPI
- Handover doc + 60-min walkthrough
- Server-side container (Cloud Run)
- Cross-device identifier stitching
- First-party data pipelines
- Handover doc + 90-min walkthrough
What's not included
External hosting costs (Cloud Run: typically €15-40/mo) are not in the fixed price. Ongoing maintenance optional as retainer (priced by scope), or your team takes over with the handover doc.
Fixed price with clear scope.
Usually: Audit 5 days · Setup 3-4 wks · Server-side 4-6 wks.
In full before project start.
What clients write on Google
5.0 · 16 Google reviews
“I hired MJ Marketing to optimize our Google Ads campaigns, and Mijo did a great job! Within a few weeks we received more qualified enquiries than ever before. Our cost per click went down while the conversion rate went up. Absolutely recommended!”
“As a small business, we were advised and supported by Mijo as part of his Google Ads management. He introduced us to the world of Google Ads step by step and explained everything in detail. … Since then, our campaigns have been running more efficiently and achieving better results.”
What you don't get
Anti-bullshit guarantee.
What's standard in the tracking market, and I explicitly don't do:
Anyone promising that is lying or ignoring Apple's privacy limits. In my experience 25-40% recovery via server-side is realistic; promising more wouldn't be honest.
I recommend GTM (free) + custom setup, not Tealium / Adobe Launch / Segment. If you switch later, the architecture is portable.
GA4 is a reporting tool, not a conversion-tracking layer. Anyone selling GA4 as a complete tracking solution hasn't understood it.
GTM's auto-track templates fill the account with meaningless events. I build hand-crafted with clear logic, even though more initial effort.
FAQ
Common tracking setup questions.
Setup briefing
30 minutes. We scope the setup.
You explain platform stack, conversion paths, current data-loss suspicions. I say which tier fits (audit / setup / server-side) and deliver a fixed-price offer usually within 48h after receiving all necessary info. If your current setup is fine, I'll tell you that too.
Fixed price after briefing. No tag-manager lock-ins.