Impact
3% higher conversion
Shopping Cart
Faster load times reduce shopping cart abandonment and increase conversion.
Revenue boost
Product live
Where before it took two weeks, now a new product is live in fifteen minutes. Thus, development enables an immediate revenue boost.
Continuous Improvement
SEO ranking
The foundation has been laid for a sustainable lead. Australia already saw a 50% performance boost with revenue growth, thanks to better SEO ranking. Dundle’s mobile webshop became the fastest in the world.
Capacity gain
Launching independently
Now that the marketing team can launch promotions and events independently, it saves the development team an average of three weeks per landing page.
About
KorsIT has put itself on the international map as a leading player in digital payment products. From prepaid and gift cards to game keys; through their platform dundle.com, KorsIT serves millions of customers, across 16 countries and in 23 languages, with more than 2,000 different products. But their ambition doesn’t stop there. KorsIT wants to be not just an online marketplace, but the trusted destination for digital payment solutions. An ambition that demands the highest standard in a highly competitive market. KorsIT’s future strategy therefore focuses on dominance in search results and top performance in terms of security and speed. This requires a technical foundation built on modern technology and unwavering reliability.
“With Vercel, we can see exactly where we are making gains and where we need to adjust. For an innovator like KorsIT, this is essential.”
The moment of truth
“The future of KorsIT was at stake,” says Duco Fronik, Head of Front-End Development, with deadly serious conviction. The system that had been the backbone of their digital operations for years simply could no longer handle modern demands. Security? Soon no longer guaranteed. Speed? Insufficient to keep customers happy or achieve SEO goals
. For a brand that wants to excel in security, reliability and speed, this was not sustainable. Duco recalls, “Adding a new product could take up to two weeks.” Two weeks in which opportunities for growth were lost. Slow load times were also disastrous-customers left before they had even filled their shopping carts. KorsIT was facing a decisive moment: innovate or lose market share. But how do you replace core technology without shutting down your day-to-day business? That’s where Team Rockstars came in-a team that not only excels in technical expertise, but is driven by a passion for innovation and the will to create something together.
From idea to innovation
Instead of a “Big Bang” migration, KorsIT and Team Rockstars chose a step-by-step approach so that the web shop could remain open while the foundation was renewed. This method kept the risks manageable and ensured that customers were not inconvenienced. “We only worked in the old system for promotions and events, while the rest of our attention went to the migration,” says Duco.
The Right Tech Stack: React, Next.js and Vercel
Team Rockstars played a key role in guiding KorsIT in its choice of Tech Stack, consisting of React, Next.js and Vercel. KorsIT needed up-to-date knowledge and experience from specialists. React is a front-end framework, while Next.js builds on it and provides server-side rendering and better SEO performance. But it is the addition of Vercel that shows KorsIT the way to peak performance.
Vercel: Tweak Performance is Peak Performance
Vercel’s front-end cloud delivers a Developer Experience (DX) platform that gives KorsIT a unique edge. This allows them to build, scale and ensure a fast, personalized experience. Duco highlights the benefit of observability: insight into Core Web Vitals. Through a dashboard, developers can monitor where performance opportunities lie and continuously make improvements, tweaking performance. Preview environments accelerate testability. Each line of code can now be tested separately, which also lowers the failure rate. Thus, every small improvement counts toward the ultimate user experience. “For an innovator like KorsIT, this is essential,” says Duco. “Vercel gives us the insights to continuously improve.”
More than code: How Rockstars transferred the spark
Team Rockstars ‘s contribution went beyond technical implementation. They fostered a culture of innovation and eagerness to learn at KorsIT. Through pair programming and code reviews, KorsIT developers not only learned new tools. Rockstars showed the team what is possible when you quickly understand each update and release. This created more job satisfaction, according to Duco: “We find it important that all developers continue to develop and can work with modern technologies. Only with that drive will we stay ahead of the competition and make dundle.com The Trusted Destination for Payment Solutions.” Rockstars also streamlined the CMS selection process, giving marketing more freedom. With DatoCMS, marketing can independently create landing pages without burdening the developers.
The result? Fewer operational tasks, more time for strategic optimization.
Sustainable Advantage: Tweak Performance
The collaboration resulted in numbers that speak for themselves. The team migrated to a lightning-fast, flexible website that effortlessly rolls out new features. Faster load times increase conversion by 3%. A new product is now live in 15 minutes. This allows KorsIT to strengthen its position in the strategic gaming market faster. With Vercel, the developer team is constantly improving performance to stay ahead of the competition. The Core Web Vital score already increased from 60-70 to an impressive 90-95. This ensures better organic SEO rankings on Google, allowing KorsIT to save on Google advertising (SEA). “The new way of working already results in a 50% performance improvement in Australia, how cool that we can achieve that here in the Netherlands.” says Duco with some pride.
Main results
- 3% Higher Conversion: Faster load times reduce shopping cart abandonment and increase conversion.
- Sales boost: Where it used to take two weeks, now a new product is live in fifteen minutes. Thus, development enables an immediate sales boost.
- Continuous Improvement: The foundation has been laid for a sustainable lead. Australia already saw a 50% performance boost with revenue growth, thanks to better SEO ranking. Dundle’s mobile web shop became the fastest in the world.
- Capacity gain: Now that the marketing team can launch promotions and events independently, it saves the development team an average of three weeks per landing page.
Collaboration
After the arrival of the first Rockstar, the team further expanded to nine developers. “Thanks to Rockstars we are on a new version sooner and that translates directly into performance gains.” says Duco. “I call it craftsmanship: Rockstars bring not only their technical expertise, but also an enormous drive and passion for innovation. Their enthusiasm is contagious – and our team remains challenged and inspired to make the most of it.” Conversely, Rockstars were empowered by KorsIT with ownership and sufficient freedom. This partnership gives KorsIT a sustainable edge, and the results will continue to speak for themselves. Dundle users notice this immediately in speed and ease of use. But not only that. The predictability of the experience reassures users that dundle is The Trusted Destination for Digital Payment Solutions.
The team migrated to a lightning-fast, flexible website that effortlessly rolls out new features.
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