SEO Agency Nantes
Your organic growth, finally driven by data.
SEO isn't just another channel. It's the foundation that makes every dollar spent on paid work harder. Primelis builds organic strategies that generate real, measurable, and sustainable revenue.
Engineering success for the most impactful brands of today and tomorrow's disruptors
Why Isn't Your SEO Driving the Growth You Expected?
SEO as a system, not a standalone channel.
Audit & Strategy: Start From Reality, Not Assumptions.
Too many SEO audits list problems without prioritizing business impact. At Primelis, the technical audit is a starting point, not a deliverable. We analyze site health, semantic coverage, internal linking, and domain authority to uncover the highest-return opportunities. Every recommendation is prioritized by its effect on qualified traffic and incremental revenue — not by how easy it is to implement.
Outrank: The SEO Intelligence That Decodes Algorithms.
Primelis built Outrank, its proprietary suite designed for organic growth. The platform generates Share of Voice analysis, benchmarks content against competitors, and tracks brand visibility across Google, Bing, YouTube, and TikTok. Outrank also covers GEO (Generative Engine Optimization): visibility within LLM-generated responses from ChatGPT and Gemini. This isn’t another reporting tool — it’s an algorithm decoder that makes every SEO decision actionable.
Content & Semantics: The Depth That Builds Authority.
A site’s semantic coverage determines its ability to capture intent at every stage of the purchase journey. Primelis builds content architectures aligned with real search signals, not editorial assumptions. Every page is designed to address a specific intent, strengthen internal linking, and consolidate the domain’s topical authority. The result: visibility that steadily expands across high-value commercial queries.
SEO & Paid: End the Cannibalization.
One of the most overlooked losses in digital marketing is cannibalization between organic and paid. Primelis analyzes how your brand performs across both channels simultaneously — including through Signal, our incrementality measurement tool for branded queries. Signal automatically pauses ads when no competitor is bidding, and reactivates them the moment a threat is detected. Every paid dollar is justified by real net value, beyond what organic already captures.
Performance Measured Against What Actually Matters.
SEO generates complex signals: traffic, rankings, clicks, conversions, revenue. Primelis connects this data to concrete business KPIs through Brand OS, our brand performance management system. We don’t just measure visibility — we measure what it produces: lower CAC, higher conversion rates, revenue growth. This unified view is what turns SEO into a predictable growth driver, not a cost center that’s hard to justify.
What You'll Get
Our full-funnel approach connects every lever into one system engineered for incremental growth, measurable business outcomes, and real collaboration across functions.
A Business Partner
Your strategic lead owns the full-funnel roadmap, translating your business goals into marketing actions. They coordinate teams, challenge assumptions, and make sure every initiative drives growth.
Tech & AI Powering Scale
No more visibility gaps or fragmented tracking. From server-side tagging to feed management, your tech lead ensures data flows cleanly across platforms, and supports smarter decisions. We also leverage AI and proprietary technologies to unlock performance at scale.
Paid & Organic Senior Experts
You get a unified team, not channel silos. Our senior specialists collaborate across acquisition levers to reduce overlap, increase efficiency, and drive performance where it matters most.
Analysts Driving Business Impact
Beyond dashboards and vanity metrics, your analyst ties every action to ROI. With years of experience across industries, they build frameworks to track contribution, test incrementality, measure causality, and identify what’s truly moving the business. They collaborate with the media teams ensuring a data led decision framework.
Creative That Performs and Builds Brand
Our in-house creative studio works hand in hand with media teams to craft assets that elevate the brand and drive results. From scroll-stopping UGC to high-impact statics and motion, every piece of content is tested, refined, and aligned with campaign objectives.
Why ambitious brands choose Primelis
Successful Brand Stories
Connect the Dots for Full Business Impact
Frequently Asked Questions About SEO in Nantes
- Why work with an SEO agency in Nantes rather than a national agency?
Geographic proximity can make collaboration easier and helps with understanding local market dynamics. That said, the deciding factor isn’t an agency’s address — it’s their ability to connect SEO to real business outcomes. Primelis works with national and international brands from Paris, with an incremental revenue-driven approach that goes well beyond local search optimization.
- How long does it take to see results from SEO?
SEO is a medium-term investment. The first signs of improvement — rankings, qualified traffic — typically appear within three to six months, depending on site maturity, competition, and the actions taken. Revenue gains compound over time, making SEO a channel whose returns improve with scale — unlike paid, which stops the moment the budget runs out.
- What's the difference between traditional SEO and GEO?
Traditional SEO optimizes visibility on conventional search engines like Google or Bing. GEO (Generative Engine Optimization) targets presence within LLM-generated responses: ChatGPT, Gemini, Perplexity. These two approaches are complementary and should be managed together to cover every touchpoint where your audiences are looking for information.
- How does Primelis measure SEO performance beyond traffic?
Primelis connects organic data to business KPIs through Brand OS. We measure SEO’s contribution to lower customer acquisition costs, higher conversion rates, and revenue growth. The goal is to move beyond surface-level reporting and tie every SEO action to a concrete, demonstrable financial impact.