Performance case studies
Case Twinkle100
The UX-Score behind the Twinkle100 benchmark
Platform: Twinkle100 benchmark (Top 100 Dutch e-commerce retailers)
Focus: UX-Score definition, real user performance benchmarking, Core Web Vitals, industry comparison, strategic insight
Case Frasers Group
How Frasers Group improved INP across three brands
Websites: flannels.com, sportsdirect.com, houseoffraser.co.uk
Focus: INP improvements, UX Score, Core Web Vitals, conversion uplift, platform readiness
Case Van de Velde
Van de Velde's Roadmap to Business-Aligned Web Speed
Websites: rigbyandpeller.com, primadonna.com, mariejo.com
Focus: Core Web Vitals, UX performance, business case development, SSR strategy
Case Simyo.nl
How Simyo reduced mobile INP from 413ms to 150ms
Improved INP for mobile users (origin P75)
413 ms
150 ms
Improved INP for desktop users (origin P75)
102 ms
52 ms
UX Score Mobile (P75)
82 (Moderate)
100 (Good)
Case giftcards.co.uk
Passing Core Web Vitals from day one: giftcards.co.uk
Good URLs on desktop
0%
94%
Cumulative Layout Shift (CLS)
45%
78%
Average response time (crawl request)
478ms
288ms
Case Autoweek
How Autoweek passed Core Web Vitals
Largest Contentful Paint
74%
85%
Cumulative Layout Shift
56%
85%
Good URL's on mobile
25.8%
93%
Good URLs on desktop
23%
96%
Case DPG Media
How DPG Media halved their page load time
First Meaningful Paint
Baseline
50% faster
Time To Interactive
Baseline
52% faster
vs. fastest competitor
Slower
20% faster