Absolutely been there. It’s incredibly frustrating when the aesthetics are on point but the mechanics are off. Often, the issue isn't one big thing but a combination of several common, performance-killing errors. Things like a cluttered layout that overwhelms visitors, a confusing navigation structure, slow loading times (especially on mobile), or weak, unclear calls-to-action can silently sabotage even the prettiest site. I found a really thorough and practical article that breaks down the top 10 of these pitfalls. It’s not just a list—it explains why each mistake hurts and gives actionable fixes. I’d recommend checking out this guide on common web design mistakes to systematically audit your site.