How Hugendubel makes +4.37% more revenue with Speed Kit
Published on August 4, 2025
- Retail
- Europe
- Custom
+4.37%
Revenue uplift with Speed Kit
45%
Faster loading category pages
80%
Preloaded user navigations
“Providing a fast and reliable online experience is a top priority for us—especially as digital plays an increasingly central role in how our customers interact with Hugendubel. Thanks to Speed Kit, we were able to noticeably boost performance across our shop with minimal technical effort. The rollout was smooth, and the collaboration with their team was efficient and solution-oriented.”
Introduction
Hugendubel, one of Germany's leading book retailers, has made its e-commerce business a central pillar of its growth strategy. With more customers discovering and purchasing books online, the performance of the digital storefront is more critical than ever.
Speed and responsiveness are no longer optional—they're key to delivering a compelling user experience. To meet these demands, Hugendubel teamed up with Speed Kit to significantly accelerate its online shop and ensure a frictionless, high-performance experience for every visitor.
Solution
Hugendubel already leverages a high-performance Single-Page Application (SPA) stack to deliver a fast and modern shopping experience. To further enhance performance on the domains hugendubel.de and ebook.de, Speed Kit was implemented.
By caching dynamic content and intelligently preloading the most likely next steps in the customer journey, Speed Kit ensures even faster load times and a smoother browsing experience across devices and regions.
Key performance metrics such as Time to First Byte (TTFB) and Largest Contentful Paint (LCP) saw significant improvements, resulting in quicker pages, increased user engagement, and higher customer satisfaction.
Results
Business Uplift: Our proof of concept with Hugendubel demonstrated a meaningful business impact, achieving a 4.37% increase in revenue and 2.82% more completed transactions. This result underscores Speed Kit's effectiveness not only in significantly speeding up page loads but also in boosting user engagement and driving higher sales.
LCP on Category Pages: Our proof of concept with Hugendubel showcased significant enhancements in website performance, achieving an impressive 582 ms improvement in Largest Contentful Paint on category pages—making them 45% faster. These results underscore Hugendubel's commitment to delivering a superior user experience through dramatically accelerated page load times.
Closing Statement
At Hugendubel, performance is more than just technical metrics—it's essential to maintaining a competitive edge. By utilizing Speed Kit, they have enhanced the customer experience from the very first interaction, providing a faster and smoother journey that reflects the quality and reliability of their brand.
