I've spent over a decade telling businesses what's slowing their site down.

It started in 2014 at De Nieuwe Zaak, a Dutch e-commerce agency, where I ran my first performance scan for a client's webshop. The results were an eye-opener. A few script changes and image optimizations later, their page load time dropped by 40%. The client couldn't believe the difference.

Since then, I've done countless performance scans for websites and webshops across the Netherlands. Every scan used to take a full day: running tests, digging through waterfalls, writing up a detailed report with prioritized recommendations. And every time, the same pattern: businesses know their site is slow, but the tools to actually diagnose the problem cost a fortune.

The existing tools out there? Great products, genuinely. But they're priced for enterprises with dedicated performance teams. A small webshop owner shouldn't need a €200/month subscription just to find out why their checkout page takes 6 seconds to load on mobile.

That frustrated me. The data is right there, in Google Analytics, in the browser's own Performance API. You shouldn't need to pay premium prices to see it.

So I built Joltsite. Real field data. Real debugging. Element-level detail. At a price that makes performance monitoring accessible to every website, not just the ones with enterprise budgets. What used to take me a day to scan and report, Joltsite does in minutes.

If you've ever stared at a PageSpeed Insights score wondering what to actually fix, Joltsite is what I wish I could have handed you.