PageSpeed and Core Web Vitals: how we assess store speed

Speed is part of the customer experience. The supplied Verdes PageSpeed report dated 11 November 2026 shows passed Core Web Vitals. Mobile field data shows LCP 1.2 seconds, INP 95 milliseconds and CLS 0; desktop field data shows LCP 1 second, INP 36 milliseconds and CLS 0. This is evidence for that site and period, not a promise for every project.

The same report gives laboratory performance scores of 77 on mobile and 91 on desktop. Mobile lab LCP is 4.1 seconds versus 1 second on desktop. Field data aggregates actual visits over time, whereas a lab run simulates particular conditions. The supplied view uses origin-level data and does not establish identical performance for every product page.

The SEO score of 100 covers a limited set of technical checks. It does not mean comprehensive optimisation, guaranteed indexing, first place or future sales. We present the metrics together with their limitations.

Development considers image sizes and formats, lazy loading below the fold, unnecessary scripts, caching and stable element dimensions. Advertising tags, large banners, external chat tools and product galleries can change performance, so checks are repeated after real materials and integrations are added.

Agreed testing includes home, category, product and ordering journeys. Third-party services and server load affect the environment. The goal is a fast, usable store for real people, not an unchanging score of 100.