Web Development Best Practices That Actually Matter in Production

Short summary

Full-stack engineer shares tested production web development practices: use feature-based folder structure for codebase organization, optimize Core Web Vitals (LCP < 2.5s, INP < 200ms, CLS < 0.1) via lazy loading and compression, implement security hardening (input sanitization, CSP, HTTPS, parameterized queries), and enforce accessibility standards (semantic HTML, keyboard navigation, color contrast).

• •Feature-based architecture (code co-location by feature, not by type) improves team onboarding and reduces tight coupling
• •Performance: lazy load assets, compress with Brotli, serve WebP/AVIF, use CDN; specific targets for LCP, INP, CLS are measurable and tied to user retention
• •Security and accessibility are non-negotiable in production: sanitize all inputs, set CSP headers, enable HTTPS, use semantic HTML, ensure keyboard navigation and 4.5:1 color contrast

Generated with AI, which can make mistakes.