Case Study: Warby Parker achieves 50% faster load times with New Relic

Warby Parker Cuts Average Page Load Time by 50% with Help from New Relic

Warby Parker, a fast-growing direct-to-consumer eyewear retailer, relied heavily on its website for sales but lacked deep, real-time visibility into site performance as traffic grew 30–40% month over month. With frequent deployments and a strong focus on customer experience—where every 500 ms mattered for conversions—the engineering team needed granular monitoring to find bottlenecks and keep load times fast across regions.

After installing New Relic in under an hour, the team used real-user monitoring, Apdex, database tracing and deployment markers to identify and fix bottlenecks, validate an Akamai caching move, and catch a near-crash database bug. Within three months average load time fell by 50%, and the engineering team gained clearer priorities, higher productivity and more proactive control over site performance and customer experience.

Warby Parker

Ali Khan

Director, Technology Operations