Jonathan MaurinHi, I'm John. Growth advisor and SaaS builder.

Growth that keeps working when you stop pushing.

Over 10 years of SEO, automation and scalable systems, for clients and for my own products. This is my blog and growth lab.

Work with me
500+companies worked with
+31KDerrick users
+485keywords in Google's top 3 for Deux.io
LukoMeilleursAgentsLegalstartAxaHECThigaDeepkiMyLittleParisCastalieIrokoBlast ClubGrosbillEDHECNewfund

Results, with the numbers.

Two programmatic systems, what went into them and what they still bring in.

Deux.io485/658

tracked keywords in Google’s top 3

A programmatic system of 90+ variables behind 500+ pages, built to rank city by city on high-intent searches and generate 35 to 50 leads per month.

Read the case study

Rank tracker listing agency keywords by city, all in first position
Derrick88

clicks per day in January 2025, two years after the last SEO action

Built once, then forgotten on purpose. 100+ page variations with embedded videos, and more than 100 signups in a typical week.

Read the case study

Search Console chart showing steady clicks and impressions over three months

Three ways to use this.

The programmatic SEO guide.

17 chapters to generate thousands of useful pages, from personas to production.

  1. 04Understand your personas
  2. 05Define goals and opportunities
  3. 06Create an optimized page zoning
  4. 07Define optimized HTML markup

See all 17 chapters

Jonathan Maurin

Agency first, then product.

For eleven years I was co-founder of Deux.io, a growth agency, until my exit in January 2025. Along the way I co-founded Derrick, one day a week at first. It now has more than 31,000 users.

My story →

Published elsewhere

On the workbench

  • The Total Addressable MarketOutbound
  • Define your Go-To-Market strategyGrowth
  • Hire a growth expertHiring
  • Google Sheets and Apps ScriptProductivity
  • SXO and SEOSEO