What does your outdated website cost you every month?

How does this calculation work?

We tally three loss sources using anonymized Dutch small-business benchmarks:

• Page-speed loss — Google published that a 1-second delay on mobile costs 7% in conversion. We translate your Lighthouse score into expected delay and tie it back to your revenue.
• Conversion gap — Each industry has an expected conversion rate (landscapers 2.1%, lawyers 4.3%, e-commerce 1.8%). We measure the gap against your estimated current conversion (without a fix, this is typically 40-60% of benchmark).
• Design-trust factor — Sites older than 5 years lose 38% of visitors within 8 seconds, according to Stanford WebCredibility research. We apply that as a discount to your visitor base.

The numbers are a conservative indication, not a contract. Want a real audit with the PageSpeed API and your own Analytics data? That's what the free DesignCheck Audit delivers — within 48 hours, from your own URL.