You've already tried fixing it. The headline. The CTA. The button copy. None of it moved the needle.
That's not because you did the wrong things. It's because the problem wasn't where you were looking.
When copy is written from inside the business, it reflects how you see your work, not how your customer experiences their problem. Every fix you make from that position treats the symptom, not the cause.
This checklist looks at your site from the outside in. Go through each section with your site open. If you can't answer yes, that's exactly where visitors are losing confidence.