Beautiful design deserves flawless performance.
See what's slowing Sézane down — and how to fix it.
Built exclusively for Sézane, this page combines real shopper insights with live performance data to reveal where to take action and unlock big gains in conversion and experience.
What your customers are actually saying and experiencing
Customers remember how easy—or difficult—it is to shop. Each delay or error chips away at loyalty, and even small frustrations can send shoppers elsewhere.
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Performance audit snapshot
Where every millisecond impacts conversions
Mobile
LCP
1.3s
Target: ≤2.5s
Exceptional: ≤1.2s
FCP
95ms
Target: ≤200ms
Exceptional: ≤100ms
CLS
0.00
Target: ≤0.1
Exceptional: ≤0.05
Desktop
LCP
1.9s
Target: ≤2.5s
Exceptional: ≤1.2s
FCP
61ms
Target: ≤200ms
Exceptional: ≤100ms
CLS
0.29
Target: ≤0.1
Exceptional: ≤0.05
These results show clear Sézane can make to improve its ecommerce experience — and where Noibu can help. Mobile performance is strong, but desktop layout shifts and load delays are costing conversions. Noibu pinpoints these hidden issues, quantifies their impact, and helps your team fix them fast — keeping every shopping experience seamless.
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Key insights (captured this week)
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Mobile performance =
critical
Performance score:
31/100
below benchmark
First contentful paint:
(130ms)
excellent responsiveness
Largest contentful paint:
(2.7s avg/spikes to 20.9s)
needs optimization
Speed index:
(0.04)
excellent stability
Desktop performance =
moderate
Performance score:
46/100
passes CWV
First contentful paint:
(1.1s)
needs optimization
Largest contentful paint:
(1.5s)
excellent
Speed index:
0.03
stable layout
Trusted by the world’s biggest brands
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Noibu's solution
We discover cirtical conversion opportunities with the insights you need to act fast and grow revenue.
Issues & alerts
Identify and resolve all technical errors on your site that are causing revenue loss.
Sessions
Capture full user journeys and connect them to technical signals.
Performance monitoring
Detect slowdowns,improve site speed, and protect conversions.
Page analysis
Get the whole picture. See where customers click, and where they quit.
No broken journeys.
No hidden friction.
Just effortless shopping that lives up to Sézane’s standard.
The business impact
These failures aren't just tech glitches -- they're brand and revenue risks.
Reputation risk
Shoppers remember friction. Smooth reliable journeys build loyalty and repeat business.
Lost revenue
Checkout issues and performance degradation translate directly to lost conversions.
Team efficiency
Prioritized insights align ecomm, DX, and dev on fixes that move revenue fastest.