Project Info

Client

STS Benelux

Year

2026

Category

development, marketing

Technologies

Next.jsCore Web VitalsCROPageSpeedAccessibility

STS Benelux

Page speed optimization and CRO overhaul for a chimney services company — cutting LCP by 4 seconds, achieving perfect accessibility, and implementing 20+ conversion improvements.

Project Overview

Conducted a multi-phase performance and conversion rate optimization for STS Benelux, a chimney maintenance company serving Belgium and the Netherlands.

Page speed improvements included reducing LCP from 7.1s to 3.1s, TBT from 280ms to 23ms, and TTI from 7.8s to 3.1s through image optimization, lazy loading, and CSS-only component replacements. CRO work included replacing weak CTAs with action-oriented buttons, adding social proof bars, rewriting form titles as value propositions, and adding urgency signals near pricing — all grounded in marketing psychology principles.

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