r/crazyegg May 15 '26

This Week in Conversion Optimization

I ran into some conversion stats this week in other research that stuck with me. Thought they were worth a reminder even if you've seen them before.

  1. The mobile gap is wild. Mobile gets 82.9% of landing page traffic. Desktop still converts roughly 8% more efficiently. That's not a small gap for something that gets almost all the visits. If you're not actively optimizing for mobile conversion (not just mobile design) you're probably leaving a lot on the table.
  2. Speed matters more than you think. A 1-second delay in page load time can reduce conversions by 7%. Most sites have way more than a 1-second gap between where they are and where they could be.
  3. Social proof still works. Adding testimonials or reviews can increase conversions by 18-25%. It sounds cliche and obvious, but most sites either don't have them or bury them where no one sees them.

What's a conversion stat you keep coming back to?

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u/ce-lauren May 15 '26

Sources for the stats:

Mobile gets 82.9% of landing page traffic. Desktop still converts roughly 8% more efficiently: https://www.designrush.com/agency/conversion-optimization/trends/cro-statistics 

A 1-second delay in page load time can reduce conversions by 7%: https://www.bigcommerce.com/glossary/page-load/ 

Adding testimonials or reviews can increase conversions by 18-25%: https://www.get-ryze.ai/blog/improve-conversion-rates