Adaptive skill practice — find your level, get sharper.
Web Development practice
How the web works, end to end
The full-stack web fundamentals interviews assume — HTTP methods, status codes and idempotency, REST vs GraphQL, the browser (DOM, events and delegation, storage, the critical rendering path, reflow vs repaint), web security (XSS, CSRF, CORS, the same-origin policy, CSP, cookies, JWT vs sessions), and performance and accessibility (semantic HTML, alt text, code splitting, compression, HTTP/2). Part of the Developer track.
• Meets you at your level — never too easy, never too hard.
• Adapts every question to how you’re doing.
• Tracks your level over time. Skill practice, not a test.
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