Ecommerce product pages: what’s the biggest conversion killer?

[Erik Van Lucas]

Hello curious what technical or content mistake you see most often on ecommerce product pages that kills conversions.

Examples might be:
• Slow image load
• No shipping info upfront
• Bad mobile UX
• lack of social proof

From your experience, what’s the biggest user friction you’ve seen that you can’t believe still happens on modern sites?
And how would you fix it in one step?

Looking for actionable, practical insights.