Passion, expertise
& results.
In both strategy and execution, the Ligne 1 team supports you on every aspect of your organic search presence. Your website and its Google performance are a personal matter for us.
Nathalie TESTON
An entrepreneur for over 20 years, driven by a passion for digital and SEO — with one obsession: growing your Google results.
The Ligne 1 SEO agency was founded in 2017 in Liège by Nathalie TESTON. As founder of the agency Easys, she managed the webmarketing of that site from day one and grew its organic traffic from zero to thousands of visitors — becoming the #1 Dating site in Belgium in under 15 months.
Driven by her new passion for catapulting sites to top positions, she decided to share her SEO expertise to help Belgian companies grow their Google traffic. And so the organic search agency Ligne 1 was born.
Her expertise covers technical SEO, semantic content strategy, SEA (Google Ads), local SEO, e-commerce and now AI optimisation (SGE, ChatGPT, Gemini, Perplexity). Her mastery of the most advanced SEO techniques enables her to drive growth for numerous businesses — from local SMEs to major international accounts such as TUI, Ferrero, ArcelorMittal, Euroclear and the European Parliament.
In 2019, a Ligne 1 client site received the international triple Award Awwwards — the global prize that recognises the best designers, developers and web agencies. An award that confirms Ligne 1's approach: combining SEO performance with creative excellence.
Our story in one sentence
Nathalie firmly believes in the synergy between technical development, SEO/SEA strategy and social presence. This conviction underpins every strategy Ligne 1 builds for its clients — with one single goal: measurable, lasting results.
Our story
The entrepreneurial beginnings
Nathalie launches into entrepreneurship. From this era, she develops a strong sensitivity for digital and online visibility — before the term "SEO" was even common currency.
#1 site in Belgium in 15 months
At the helm of Easys, Nathalie drives the site's webmarketing from its launch and achieves the #1 position in Belgium in the Dating sector in under 15 months, starting from zero visitors.
Ligne 1 founded in Liège
Building on this success, Nathalie founds Ligne 1 to share her SEO expertise with Belgian businesses. The agency positions itself in organic search, SEA and high-performance website creation.
Major accounts & expansion
Ligne 1 works with internationally sized companies: TUI, Ferrero, Cargill, ArcelorMittal, Euroclear, the European Parliament. The agency reinforces its premium positioning.
Next-generation SEO — AI & SGE
Ligne 1 integrates optimisation for AI search engines (ChatGPT, Gemini, Perplexity, Claude) into its strategies. The agency is among the first in Belgium to offer SEO + generative AI support.
Our team of passionate experts
When the logic of code meets creative intuition.
Results first
Every euro invested must be justified by measurable results. No vague promises — clear KPIs, transparent reporting, traceable ROI.
Constant curiosity
Google updates its algorithms multiple times a year. We maintain continuous monitoring to adapt our strategies to the latest developments — including AI.
Partner, not supplier
We invest in your growth as though it were our own business. Your success is our reputation — and we take that very seriously.
Technical creativity
SEO is not just about technical skill. It's also about creativity — in content, in the angle of attack, in spotting opportunities others miss.
Direct communication
No unnecessary jargon. No incomprehensible reports. We speak your language — the language of business objectives, customers and revenue.
Shared ambition
We love working with clients who genuinely want to grow. The higher your ambition, the more motivated we are to get you there.
Belgian roots, international vision
Liège, Brussels, Luxembourg… we know the Belgian business landscape from the inside, while drawing inspiration from the world's best practices.
Data-driven, always
Every strategic decision is backed by real data — Analytics, Search Console, technical audits — never by intuition alone.
Our areas of expertise
Ready to take off with Ligne 1?
A conversation with Nathalie to analyse your SEO potential and define a tailored strategy. Free pre-audit included.