A leading U.S. auto parts retailer used Harper’s Early Hints technology to overcome Core Web Vitals failures, achieving faster load speeds, dramatically improved indexation, and an estimated $8.6M annual revenue uplift. With minimal code changes, the proof-of-concept validated that even small performance gains can unlock significant growth opportunities for large-scale e-commerce businesses.

A U.S. mid-market online retailer struggling with Core Web Vitals and mobile performance saw search visibility and engagement plateau despite ongoing optimization efforts. By deploying Harper’s Early Hints technology in a 30-day proof of concept, the retailer achieved faster load times, 72% fewer poor mobile URLs, and an estimated $600K annual revenue uplift with minimal engineering effort.

Learn how a Fortune 100 retailer accelerated their website's performance to outrank Amazon.com product pages on Google.