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last updated: 2026-03-05 06:09:38

Strategies: Localization

Guides localization strategy for AI/SaaS products expanding into global markets. Covers i18n implementation, translation, pricing, and marketing adaptation--not just text translation.

When invoking: On first use, if helpful, open with 1-2 sentences on what this skill covers and why it matters, then provide the main output. On subsequent use or when the user asks to skip, go directly to the main output.

Initial Assessment

Check for product marketing context first: If .claude/product-marketing-context.md or .cursor/product-marketing-context.md exists, read it for product, target markets, and brand.

Identify:

  1. Target markets: Priority languages/regions
  2. Product type: SaaS, AI tool, content
  3. Technical stack: Next.js, React, etc.

Localization vs. Translation

Localization includes:

  • Product: Features, UI/UX, cultural adaptation
  • Pricing: True localization (adjust by market) vs. cosmetic (currency only)
  • Marketing: Channels, content, user personas
  • Compliance: GDPR, local regulations

Technical (i18n)

URL Structure

Choose one; be consistent:

OptionExamplePros / Cons
Subdirectories/en/, /de/, /zh/Recommended; maintains domain authority
Subdomainsde.example.comSeparate hosting; less authority transfer
ccTLDexample.deStrongest geo signal; costly
  • Use subdirectories, not subdomains for i18n; subdomains transfer less authority.
  • Default locale: Root path for default (e.g. / for English); prefix for others (/zh/, /de/).
  • IETF BCP 47: Use valid codes (en, en-US, zh-CN, pt-BR). Same language, different country (e.g. de-DE vs de-AT) needs ≥20% content difference for Google to differentiate.

i18n SEO Principles

  • No hardcoded strings: All user-facing text via translation dictionary.
  • Symmetric alternates: Every locale page lists ALL other versions (including self-reference). ~75% of international sites have hreflang errors; missing reciprocal links is the most common.
  • x-default: Always include for fallback when user language/location doesn't match any version.
  • Canonical alignment: Canonical must match the same regional version hreflang refers to; misalignment causes Google to ignore hreflang.
  • Full SEO coverage: Metadata, OpenGraph, JSON-LD (inLanguage), and sitemap all locale-aware.

Common Issues (Next.js + next-intl)

IssueSolution
Route conflictgenerateStaticParams(); validate locale
Auto redirectlocaleDetection: false
MiddlewareApply only to prefixed paths (e.g. /zh)
URL duplicationManual switcher; getLocalizedHref()

SEO

  • Hreflang on all language versions; self-reference + symmetric annotations.
  • Language switcher: Use <a> not <button>; links in initial HTML.
  • Canonical: Handle multi-domain if using local TLDs; align with hreflang.
  • SPAs: Use sitemap-based hreflang as backup when HTML head is JS-rendered.

Keyword Research by Market

MarketTool
RussiaYandex Wordstat
KoreaNaver DataLab
GlobalGoogle Keyword Planner, SEO tools

Consider: Cultural expressions, search habits, competition, long-tail in small markets.

Terminology

  • AIGC vs. GenAI: Use "AIGC" for China; "Generative AI" for English markets
  • KOL vs. Influencer: "Influencer" in English; "KOL" in Chinese
  • Avoid machine translation for product/marketing: Terminology, culture, SEO quality

Pricing Strategies

StrategyUse
True localizationAdjust price by purchasing power
CosmeticDisplay currency only; same price
ToolsParity Deals, Chargebee

i18n SEO Checklist (New Feature / New Locale)

New feature with i18n

  1. Add translation keys to all locale JSON files.
  2. Add generateMetadata() with alternates (hreflang) per page.
  3. Add JSON-LD with inLanguage and translated fields.
  4. Add page to sitemap with hreflang annotations.
  5. Set lang attribute on <html>; UTF-8 encoding.

New locale

  1. Add locale code to config; create {code}.json dictionary.
  2. Register in sitemap locale list; regenerate.
  3. Add OpenGraph locale and alternateLocale.
  4. Ensure all alternates are symmetric (every page lists all versions).

Multilingual Risks

  • Batch publishing: Too many translated pages at once can trigger de-indexing or thin-content penalties.
  • Mitigation: Roll out slowly; ensure content is product/industry relevant; avoid Wikipedia-like breadth; monitor indexing in GSC.

Avoid

  • IP-based redirects that override user preferences.
  • Machine translation without localization for product/marketing.
  • Missing reciprocal hreflang between language versions.
  • Canonical tags that conflict with hreflang.

Output Format

  • Market priority
  • i18n approach
  • Keyword strategy per market
  • Pricing recommendation
  • Technical checklist
  • i18n SEO checklist (if applicable)

Related Skills

  • pricing-strategy: Base price structure; localization-strategy covers pricing by market
  • page-metadata: Hreflang implementation
  • url-structure: URL hierarchy for i18n (subdirectories, subdomains)
  • content-strategy: Multilingual content planning; avoid thin translations
  • navigation-menu-generator: Language switcher SEO
  • affiliate-marketing: Local affiliates for target markets
  • gtm-strategy: New market entry; localization as GTM for new geography