← Frontend Case Studies
Preply
preply.com
•
Engineering blog
• 5 case
studies
How Preply improved INP on a Next.js application (without React Server Components and App Router)
February 2025
The Implementation Details of Preply’s Design System Visual Coverage (part II)
September 2024
Visual coverage: Why and How Preply Measures the Impact of the Design System (part I)
September 2024
How to debug cumulative layout shift by adding secret visuals to HotJar recordings
November 2020
Migrating from Backbone.js to React.js without losing it
September 2018