Case Study: Wanelo achieves a 98% cache hit rate and faster mobile performance with Fastly

Wanelo achieves 98% cache hit rate while growing user base by millions

Wanelo is an image‑heavy, mobile‑first e-commerce community that saw its user base grow dramatically (about 1000% in a year), putting strain on its original Java platform. With infinite scroll, tens of thousands of images served and the Wanelo “Save” button appearing on large retailer sites, the company needed to scale quickly, keep response times low for 80% mobile users, and protect origin servers from traffic spikes.

Wanelo put Fastly in front of its Java stack and S3 image cache to accelerate images and APIs, using Instant Purge, surrogate keys, Varnish VCL, Origin Shield and request collapsing to control caching and handle bursts. The result: a 98% cache hit rate, tens of thousands of images served per second, much faster mobile/API performance, improved international delivery, robust protection against spikes, and engineering time freed to rebuild the platform.

Wanelo

Konstantin Gredeskoul

Chief Technology Officer