Selling gold online? Your web performance better be solid as... well, gold. Here's how Wamoco and RUMvision helped a premium gold shop fix Core Web Vitals issues that were undermining thousands of euros in customer trust.
When you're selling gold online, trust isn't optional. Customers are making transactions worth thousands of euros. They need to feel confident - in your brand, in your security, and yes, in your website.
A glitchy page? A site that feels unstable? That's not just annoying. That's a reason to close the tab and go somewhere else. Because if you can't build a website that feels solid, why should customers trust you with their money?
The goal: improve Core Web Vitals
This was the reality facing a premium online gold shop. Their brand and products were trustworthy. But hidden technical issues were making the site feel less polished than it should - pages jumping around, interactions feeling sluggish. Small things, but in a high-stakes environment, small things matter.
Our agency partner Wamoco had already done the heavy lifting - migrating the shop to Magento 2 and Hyvä, building a digital hub, and establishing the foundation for the company's entire digital strategy. They know this platform inside and out. When they still spotted performance issues affecting customers, they knew they needed better data to pinpoint exactly what was happening and where. That's how our partnership came to be.
We set up a quick optimization round. Their team, our team, and RUMvision data showing exactly where things hurt and how often. The takeaway? Not all optimizations are hard. You just need data on where it hurts, and how often. The result: a site that feels stable and reliable - exactly how you'd want your premium site to feel when thousands of euros are on the line.
Making the site feel stable
RUMvision data showed something interesting: a massive Layout Shift spike on product detail pages. We could see it happening to real customers, in real time. The culprit? The main product image only appeared once the JavaScript kicked in, making customers watch the page jump around as it loaded.
Not exactly the "stable investment" vibe you're going for when selling gold.
Wamoco knew exactly what to do. Add a placeholder image. By reserving space and showing something immediately, customers could browse without distractions while the final image loaded in the background. The data proved it worked - that spike disappeared almost overnight.
Improved Cumulative Layout Shift from 0.40 to 0.05
Speed where it matters
Loading times matter, but not all loading times are equal. RUMvision showed us that the shop's product pages were taking too long to become interactive - customers could see the page, but clicking or scrolling felt sluggish. And we could see exactly which pages, which devices, and how often it was happening.
Wamoco tackled this by optimizing how and when JavaScript loaded. Instead of blocking everything until all scripts were ready, they prioritized what customers actually needed first. The result? Pages that felt responsive immediately, even while other elements loaded in the background.
Improved Largest Contentful Paint from 2.7 seconds (just above the 2.5 good threshold) to 2 seconds
Fixing the invisible problems
This is where RUM data really shines. Some issues only show up for certain customers, on certain devices, at certain times. Lab tests miss them completely. But RUMvision caught the patterns:
- Images that were too large for mobile devices
- Third-party scripts causing delays on specific pages
- Resources loading in the wrong order, but only sometimes
Each fix was small on its own. But by dedicating time together - their team walking us through the platform, our team showing them exactly what the data revealed - we turned these insights into action. The improvements added up to something customers could actually feel: a site that worked smoothly, every time.
Real results for customers
The improvements in the speed at which unique visitors experienced the website finally reached gold standard and were worthy of a leading precious metals dealer.
The power of partnership
What made these improvements possible was the combination of Wamoco’s Magento and Hyvä expertise with RUMvision’s real-user monitoring insights.
Together, they didn't just fix problems- they proved the impact of those fixes with live customer data and passed Core Web Vitals.
This success marked the beginning of an ongoing collaboration between Wamoco and RUMvision, which recently earned them Golden Partner status. Yes, the golden puns can go even beyond this use case. But the most important win?
Happier users, happier merchant. Really, quite a golden combination, isn't it?
