Module 22 · 1 chapters

Global i18n at Scale

Global products need more than translation — locale-aware formatting, RTL layouts, regional CDN delivery, ICU plurals, and jurisdiction-specific compliance copy.

This module covers lazy locale bundles, CSS logical properties for RTL, ICU via FormatJS/next-intl, compliance copy workflows, and pseudo-localization CI.

Staff interviews ask how you ship 30 languages without bloating the bundle or breaking layouts.

Staff track module — extends Frontend System Design i18n section (Module 15) with operational depth.

Chapters in this module

  1. Global i18n at ScaleLocale bundle splitting, RTL layouts with logical CSS, CDN regional delivery, ICU message format, compliance copy, and i18n testing.
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