Lines-Up
EN FR
Services & Specializations
⚡ MarTech & Growth Field Notes

Senior Growth Playbook: Architectures & Field Notes.

Engineered technical guides, Server-Side tracking benchmarks, Google PMax margin bidding setups, and transparent unit economics for European SMBs. Written strictly by Senior Practitioners.

Google Ads 11 min read

Google Performance Max Margin Bidding: Stop Funding Low-Margin Catalog SKUs

How to link custom product margin feeds to Google Ads, filter out items below 35% gross margin, and optimize for true profit (POAS) rather than empty vanity ROAS.

Read Technical Guide →
Meta Ads 9 min read

How to Fix Meta CAPI Deduplication & Achieve 8.5+ Event Match Quality

Step-by-step diagnostic on configuring Server-to-Server event_id generation, fbp/fbc cookie retention, and preventing duplicate purchase firing between browser and server.

Read Technical Guide →
Compliance 10 min read

Google Consent Mode v2 for France & EU: Zero Signal Loss Under Strict CNIL

How to configure Advanced Consent Mode v2 under French CNIL regulations while preserving cookieless conversion modeling for Google Ads bidding algorithms.

Read Technical Guide →
Web Analytics 12 min read

Serverless Offline CRM Call Tracking Pipeline via GCLID: The Complete Setup

Capturing Google Click IDs in phone and form leads, storing them in CRM, and using scheduled GitHub Actions / Cloud Webhooks to upload closed sales back to Google Ads.

Read Technical Guide →
CRO & Web 8 min read

E-Commerce Checkout Speed & CRO: 5 Silent Leaks Killing Paid Traffic ROAS

Analysis of 50+ European SMB checkout funnels: mobile input friction, hidden shipping fees, third-party script bloat, and payment gateway drop-offs.

Read Technical Guide →
Server-Side Tracking 13 min read

Server-Side GTM on Shopify: Cloud Run vs Stape vs Native Web Pixels

Comprehensive guide to running Server-Side Google Tag Manager on Shopify. Compare Cloud Run, Stape, and Shopify Customer Events Web Pixels for robust tracking.

Read Technical Guide →
Web Analytics 14 min read

GA4 to BigQuery Pipeline: Building Real-Time LTV & Net Profit Dashboards

How to export raw GA4 event data to Google BigQuery, join it with CRM margins and ad spend, and build live executive dashboards in Looker Studio.

Read Technical Guide →
Google Ads 10 min read

Google Ads for High-Ticket European B2B: Bypassing Low-Volume Speculative Clicks

How to structure Google Search and Demand Gen campaigns for European high-ticket B2B: strict negative lists, value-based bidding, and pre-qualifying leads.

Read Technical Guide →
Server-Side Tracking 9 min read

Safari ITP 2.4 & iOS 18: Protecting First-Party Cookies from 7-Day Purges

How Apple Safari ITP and iOS 18 silently truncate first-party cookies to 7 days or 24 hours, and how to defend your attribution window using server-set HttpOnly cookies.

Read Technical Guide →
CRO & Web 12 min read

Shopify Checkout Extensibility Migration: Custom Web Pixels & Server CAPI

The definitive migration guide from additional_scripts to Shopify Checkout Extensibility. Building custom Web Pixel sandboxes, dispatching DOM events, and firing Meta CAPI.

Read Technical Guide →
Operating Standard 6 min read

Senior Crew vs Conventional Assembly Lines: The Economics of Direct Delivery

Why traditional models place junior trainees on client ad budgets, how fee markups conceal inefficiencies, and why direct senior practitioners generate predictable P&L growth.

Inspect Manifesto →