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Blog — Page 5

Sustainable Websites: How Performance Cuts CO2

Sustainable websites: how fewer bytes, lean JavaScript and efficient caching cut the CO2 footprint while improving Core Web Vitals at the same time.

12 min read
Shops & CMS Jul 8, 2026

Page Speed and Conversion: How Speed Drives Revenue

Every second of load time decides conversion and cart value: how speed drives revenue, what 100 milliseconds are worth and Core Web Vitals in euros.

12 min read

Speculation Rules: Instant Navigation via Prerendering

How the Speculation Rules API prefetches or prerenders next pages, tunes eagerness correctly, and avoids wasted prerenders and analytics side effects.

13 min read

RUM vs. CrUX: Using Field Data Right for Speed

Lighthouse lab scores do not affect ranking. Google rates Core Web Vitals via CrUX field data at the 75th percentile. How to use RUM, CrUX and budgets.

15 min read

fetchpriority: Speed Up LCP with Priority Hints

How fetchpriority='high' loads the LCP image sooner: correct use, interplay with preload and srcset, the most common mistakes and the LCP quick win.

13 min read

Visual Stability Index 2026: The Next CLS Step

Visual Stability Index (VSI): in 2026 Google measures layout stability across the whole visit, not just page load. How to make your website future-proof.

14 min read

Progressive Image Display: LQIP and Blur-up for Speed

LQIP, blur-up and responsive images for faster image build-up: better perceived and measured performance, fewer layout shifts, strong Core Web Vitals.

13 min read

Server-Side Rendering and Hydration Done Right

SSR delivers HTML fast, but hydration costs performance. Islands, partial hydration and resumability for fast shops and strong Core Web Vitals.

15 min read

Avoid Cumulative Layout Shift: Stable Shops

Avoid CLS: fix layout shifts from images, fonts, ads and injections precisely. The result is measurably more stable shop layouts with a good CLS score.

13 min read