How Dedoles increased conversions by +2.43% with Speed Kit
Published on November 2, 2026
- Fashion
- Europe
- Shopify
+2.43%
Relative uplift in user conversion rate during the PoC phase
+2.55%
More orders in the Speed Kit group during the PoC phase
−796 ms
LCP improvement on accelerated pages
“I did not want to take anyone's word for it, so we tested it properly. The Speed Kit group reached a 2.43% higher relative conversion rate, and that is why our country stores run on Speed Kit now.”
Introduction
Dedoles has designed colourful socks, underwear, shoes, swimwear and pyjamas since 2011, with every pattern drawn by its own designers in Slovakia. More than four million people wear its products. From Bratislava, Dedoles runs 15 country storefronts on Shopify and ships to more than 20 countries.
Challenge
Germany brings around 30% of Dedoles' traffic, so Dedoles started Speed Kit on its German storefront. The team had been improving the store's front end on its own and kept doing so during the test, and the shop runs several third-party applications, including tools for its own A/B tests. Before extending Speed Kit to the other country domains, Dedoles wanted to see the effect in its conversion numbers.
Solution
Speed Kit runs alongside the existing Shopify store. It works out which page a visitor is likely to open next and prepares it in the background, so that page is often already complete in the browser by the time the customer clicks. After the first test on dedoles.de, the Dedoles team connected Speed Kit to all of its country stores within two weeks.
Results
Business Impact — PoC Phase: During the PoC phase, half of the visitors got Speed Kit and the other half, the control group, did not, in two test rounds. The Speed Kit group reached a 2.43% higher user conversion rate and placed 2.55% more orders.
Performance Improvements — Largest Contentful Paint (LCP): On the accelerated pages of dedoles.de, the main content reaches the customer 796 ms, or 61%, faster. Collection pages gain the most at 65%, followed by product pages at 62%.
Predictive Preloading Coverage: Speed Kit prepares the next page before the customer clicks. 79% of next pages are cached before the users visit them, and 56% of users get a page that was prerendered in the background.
Conclusion
Dedoles started on its German storefront and wanted to see the effect in its conversion numbers before going further. With Speed Kit, main content on dedoles.de loads 61% faster, 79% of next pages are cached before the click, and during the PoC phase the Speed Kit group converted at a 2.43% higher rate. Dedoles has since switched all of its country storefronts to Speed Kit.
