Web Analytics Agency Nantes
Web analytics: turn your data into real growth
Your data is telling a story. The question is whether you can read it, connect it, and act on it. Primelis builds the analytics foundation that makes measurement a genuine performance driver — not just another dashboard.
Engineering success for the most impactful brands of today and tomorrow's disruptors
Why Data Alone No Longer Drives Performance
It's not about how much data you have. It's about what you do with it.
A Measurement Plan Built Around Your Business Goals
It all starts with a rigorous tagging plan. Primelis audits your existing analytics setup, identifies blind spots and misconfigured events, then rebuilds a measurement architecture aligned to your actual objectives. Every tracked conversion should map to a meaningful business signal: purchase, qualified lead, significant engagement. This foundational work determines the reliability of every analysis that follows. Without it, even the best dashboard is just an illusion of control.
Incrementality at the Core of Your Measurement
Traditional analytics tends to assign value to the last touchpoint. That model undervalues some channels and overvalues others. Primelis embeds an incrementality-first logic into your measurement framework: we identify what’s actually driving additional conversions — beyond what would have happened without activation. This approach sits at the heart of our Unified Marketing System. It enables precise budget allocation, prevents paid/organic cannibalization, and focuses investment where it creates net value.
Full-Funnel Visibility — No Data Silos
The customer journey doesn’t follow your marketing channels. It moves across SEO, Paid Media, Social, CRM, and sometimes marketplaces — rarely in a linear order. Primelis connects these data sources to build a unified view of user behavior, from first impression to conversion. That analytical coherence is what separates real performance management from a stack of disconnected reports. As a web analytics agency in Nantes and a partner to global brands, we apply this same rigor regardless of how complex your digital ecosystem is.
Signal: Incrementality Measurement for Your Brand Queries
Primelis developed Signal, a proprietary tool that analyzes in real time how your audience interacts with brand-related search results on Google and Bing. Signal identifies the exact source of your branded traffic, separates organic from paid, and optimizes your spend based on true incremental value. In practice, it pauses your ads when you’re the only bidder and reactivates them the moment a competitor enters the auction. The result: you only pay for what demonstrably drives incremental brand performance.
Insights That Power Your Entire Marketing Strategy
Analytics doesn’t stop at reporting. At Primelis, the data we collect feeds directly into Paid Media, SEO, CRM, and Retail Media decisions. A behavioral insight on a bottom-of-funnel audience can reshape a content strategy. An anomaly in conversion data can surface a critical UX issue. This ability to turn raw data into concrete action is what makes our analytics approach a core component of the Unified Marketing System — not a standalone service, but a shared engine.
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 Our Clients Never Fly Blind Anymore.
Successful Brand Stories
Transparency is our best deal
Connect the Dots for Full Business Impact
Frequently Asked Questions About Web Analytics
- What can a web analytics agency actually do for my business?
A web analytics agency structures your measurement framework so your data accurately reflects your real performance. It configures tracking tools, defines the right events, builds dashboards aligned to your KPIs — and most importantly, turns that data into actionable recommendations. The goal isn’t more data. It’s better decisions.
- Why work with a web analytics agency in Nantes instead of building in-house?
Building a reliable measurement plan, managing GA4, running cross-channel analysis, and measuring incrementality all require deep expertise and constant platform monitoring. A specialized agency brings that capability immediately — without the lead time and cost of a senior hire. It also brings an outside perspective, which is often more objective when it comes to identifying blind spots in your current setup.
- Is GA4 enough to manage my digital performance?
GA4 is a powerful data collection tool — but it’s not a measurement strategy. Without a structured tagging plan, clear conversion definitions, and cross-referencing with other data sources (CRM, ad platforms, transactional data), GA4 produces incomplete reports. The real work is configuring the tool around your business objectives, not the other way around.
- How does Primelis measure the incrementality of my campaigns?
Primelis uses a combination of approaches: cross-channel attribution modeling, incrementality testing, and our proprietary Signal tool for brand queries. Signal analyzes competitive presence on your branded terms in real time and optimizes your paid spend based on true incremental value — so you’re not paying for traffic that would have come organically anyway.