From October 5 to October 7, 2026, the interior design website viaandrea.nl improved its Google PageSpeed Insights performance score from 67 to 100 on mobile and from 80 to 100 on desktop. Accessibility and SEO also reached 100 on both devices.
The client: distinctive interiors, delivered with care
via andrea is an interior design business built around beauty, balance, form, colour and personality. Its approach combines practical designs tailored to each client with the confidence to introduce striking colours, design classics and memorable details. The website needed to present that creative work while providing a strong technical experience for visitors on phones and computers.
The challenge
The October 5 measurements highlighted room for improvement, particularly on mobile. The mobile performance score was 67, Largest Contentful Paint was 3.2 seconds, and Cumulative Layout Shift was 0.563. On desktop, performance was 80 and layout shift was 0.327. These lab-test measurements suggested that speed and visual stability deserved attention.
The results: October 5 vs. October 7, 2026
Most notably, mobile LCP fell by approximately 72%, while the reported layout shift dropped to zero on both devices. Both performance scores reached the maximum of 100 in the October 7 tests.
| Metric | Before, Oct 5 | After, Oct 7 |
|---|---|---|
| Mobile performance | 67 / 100 | 100 / 100 |
| Desktop performance | 80 / 100 | 100 / 100 |
| Mobile LCP | 3.2 s | 0.9 s |
| Desktop LCP | 1.1 s | 0.6 s |
| Mobile layout shift (CLS) | 0.563 | 0 |
| Desktop layout shift (CLS) | 0.327 | 0 |
| Mobile accessibility | 76 / 100 | 100 / 100 |
| Desktop accessibility | 76 / 100 | 100 / 100 |
| Mobile SEO | 92 / 100 | 100 / 100 |
| Desktop SEO | 92 / 100 | 100 / 100 |
| Mobile best practices | 69 / 100 | 92 / 100 |
| Desktop best practices | 73 / 100 | 96 / 100 |
| Agentic browsing checks | 1 / 3 | 3 / 3 |
Before and after: mobile PageSpeed Insights
- Before: Mobile, October 5, 2026, performance 67
- After: Mobile, October 7, 2026, performance 100
Before and after: desktop PageSpeed Insights
- Before: Desktop, October 5, 2026, performance 80
- After: Desktop, October 7, 2026, performance 100
Our measurement-led approach
- Establish a baseline. We compared the October 5 PageSpeed Insights reports across mobile and desktop, reviewing performance scores, loading milestones, layout stability and the other reported audit categories.
- Prioritise the visitor experience. The measurements pointed to two especially important outcomes: getting the main page content visible sooner and eliminating unexpected layout movement. The precise implementation changes are not documented by these reports, so this case study does not attribute the improvement to any unverified plugin or code change.
- Verify the result. New PageSpeed Insights reports on October 7 showed 100/100 performance, accessibility and SEO on mobile and desktop. Best practices also improved, and the report’s agentic-browsing checks increased from 1/3 to 3/3.
What this means for via andrea
via andrea can now point to a much stronger measured website experience: faster main-content rendering, no observed layout shift in these runs, and top scores across several technical categories. That supports the presentation of its interior design portfolio without claiming a proven increase in enquiries or sales, which these tests do not measure.
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Measurement note: Scores and timings shown are individual Google PageSpeed Insights reports dated October 5 and October 7, 2026. They are lab measurements, not real-user field data. Scores can vary between runs and do not guarantee search rankings, conversions or identical results for every visitor.