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Performance Optimization for a Slow Storefront

FreeVerified credential3 weeksIntermediate

Overview

What this challenge is about.

Run Lighthouse tests on 3 pages, ship 5 performance fixes, track with RUM, and earn your verifiable certificate.

The scenario

The fashion brand (bootstrapped + private investment, brand-driven not paid-acquisition-driven) sees mobile performance as a brand-quality issue, not just a conversion lever — every extra second feels off-brand for a sustainable-fashion buyer.

CredentialBlockchain-anchored
ShareableLinkedIn-ready
LanguageEnglish
PaceSelf-paced

The Brief

What you'll do, and what you'll demonstrate.

Cut Largest Contentful Paint by 50 percent and Cumulative Layout Shift below 0.1 on a Next.js storefront, measured on real user monitoring.

Earning criteria — what you'll demonstrate

  • Diagnose web-performance bottlenecks using Lighthouse + WebPageTest + RUM
  • Apply Next.js performance primitives (next/image, dynamic imports, font optimization)
  • Measure performance changes on real users, not synthetic-only benchmarks
  • Document performance work so a non-frontend reviewer understands the win

Program Fit

Where this fits in your program.

Sharpens the same skills your degree expects you to demonstrate.

Web Application Development

Bachelor · Web And Mobile

Strong alignment

This challenge maps to Web Application Development at the Bachelor level. It sharpens the same practical skills your coursework expects — but in a real industry context with actual constraints and deliverables.

One more thing

You can put a credential on your CV by Friday.