Module: Validation/LanguageMetadata

INTELLIGENCE OPERATIVE PERSPECTIVE

This validator ensures the homepage and main content pages maintain proper language metadata across all 14 supported language editions. While appearing as a technical SEO task, language validation serves critical intelligence functions: ensuring international readers can discover content in their language, preventing search engine deindexing, and maintaining consistent information architecture across the multilingual platform.

METADATA VALIDATION FRAMEWORK: The validator checks seven critical metadata elements for each language:

  1. HTML lang Attribute Correctness

    • Validates lang="xx" matches ISO 639-1 language codes
    • Detects mismatches (e.g., Swedish content with lang="en")
    • Critical for: Screen readers, search engines, browser font selection Intelligence impact: Accessibility for visually-impaired international readers

  2. dir="rtl" for Right-to-Left Languages

    • Validates Arabic (AR) and Hebrew (HE) have dir="rtl" attribute
    • Detects LTR incorrectly applied to RTL content
    • Critical for: Text layout, number display, punctuation handling Intelligence impact: Readability for Middle Eastern audience

  3. Title Tag Presence & Uniqueness

    • Ensures tag exists and is language-appropriate</li> <li>Detects duplicate titles across language versions</li> <li>Critical for: Browser tab display, search engine indexing Intelligence impact: Click-through rates from search results</li> </ul> </li> <li> <p><strong>Meta Description Presence</strong></p> <ul> <li>Validates meta description tag for SEO preview</li> <li>Detects missing or placeholder descriptions</li> <li>Critical for: Google snippet display, CTR optimization Intelligence impact: Search engine visibility for each language</li> </ul> </li> <li> <p><strong>Canonical URL Correctness</strong></p> <ul> <li>Ensures canonical URL points to correct language version</li> <li>Detects broken or missing canonical tags</li> <li>Critical for: Preventing search engine penalization Intelligence impact: Prevents duplicate content SEO issues</li> </ul> </li> <li> <p><strong>Hreflang Tag Completeness</strong></p> <ul> <li>Validates presence of hreflang tags for all language versions</li> <li>Checks all target languages are represented</li> <li>Critical for: Search engine language targeting Intelligence impact: Users find correct language version</li> </ul> </li> <li> <p><strong>Open Graph Protocol for Social Media</strong></p> <ul> <li>Ensures og:locale matches language code</li> <li>Validates og:title and og:description presence</li> <li>Critical for: Social media preview appearance Intelligence impact: Engagement rates when articles shared</li> </ul> </li> <li> <p><strong>Schema.org Structured Data</strong></p> <ul> <li>Validates JSON-LD for news articles and organizations</li> <li>Ensures @language property matches content language</li> <li>Critical for: Rich snippets, knowledge graph integration Intelligence impact: Enhanced search visibility and credibility</li> </ul> </li> </ol> <p><strong>LANGUAGE CONFIGURATIONS (14 Total):</strong></p> <ul> <li>EN: English (Primary international language)</li> <li>SV: Swedish (Source/development language)</li> <li>DA: Danish (Nordic coverage)</li> <li>NO: Norwegian (Nordic coverage)</li> <li>FI: Finnish (Nordic coverage)</li> <li>DE: German (European coverage)</li> <li>FR: French (European coverage)</li> <li>ES: Spanish (European coverage)</li> <li>NL: Dutch (European coverage)</li> <li>AR: Arabic (Middle Eastern coverage, RTL)</li> <li>HE: Hebrew (Middle Eastern coverage, RTL)</li> <li>JA: Japanese (Asian coverage, special encoding)</li> <li>KO: Korean (Asian coverage, special encoding)</li> <li>ZH: Chinese Simplified (Asian coverage, special encoding)</li> </ul> <p><strong>VALIDATION ALGORITHM:</strong></p> <ol> <li>Load each language version HTML file</li> <li>Parse metadata fields (lang, dir, title, meta, canonical, etc.)</li> <li>Validate against language configuration rules</li> <li>Cross-validate hreflang consistency across all versions</li> <li>Report validation results with specific errors</li> <li>Exit code 0 if all valid, 1 if any failures</li> </ol> <p><strong>OPERATIONAL INTEGRATION:</strong></p> <ul> <li>Pre-deployment CI/CD validation (blocks bad metadata)</li> <li>Automated homepage generation pipeline</li> <li>Monthly SEO audit to detect drift</li> <li>Search console monitoring for indexing issues</li> </ul> <p><strong>SEARCH ENGINE OPTIMIZATION IMPACT:</strong></p> <ul> <li>Proper metadata prevents Google search penalties</li> <li>Hreflang tags direct users to correct language version</li> <li>Canonical tags prevent duplicate content issues</li> <li>Structured data improves SERP visibility</li> </ul> <p><strong>ACCESSIBILITY COMPLIANCE:</strong></p> <ul> <li>lang attribute critical for screen reader language detection</li> <li>dir="rtl" essential for RTL language navigation</li> <li>Meta descriptions describe page purpose for users</li> <li>Structured data supports assistive technology</li> </ul> <p><strong>KNOWN LIMITATIONS:</strong></p> <ul> <li>Does not validate hreflang URLs correctness (only counts tags)</li> <li>Does not verify that hreflang URLs actually exist or are reachable</li> <li>Does not check translation quality of meta descriptions</li> <li>Does not validate Open Graph image URLs</li> </ul> <p><strong>PERFORMANCE:</strong></p> <ul> <li>File read + parse: ~5ms per language</li> <li>Full validation: ~70ms total (14 languages)</li> <li>Memory usage: Minimal (streaming parser)</li> </ul> <p><strong>GDPR COMPLIANCE:</strong></p> <ul> <li>No personal data processing</li> <li>Meta description validation supports transparency</li> <li>Language targeting respects user preferences</li> <li>Cookie consent metadata validation (future enhancement)</li> </ul></div> <dl class="details"> <dt class="tag-version">Version:</dt> <dd class="tag-version"><ul class="dummy"><li>2.0.0</li></ul></dd> <dt class="tag-since">Since:</dt> <dd class="tag-since"><ul class="dummy"><li>2024-07-20</li></ul></dd> <dt class="tag-author">Author:</dt> <dd class="tag-author"> <ul> <li>Hack23 AB (Multilingual Platform & SEO)</li> </ul> </dd> <dt class="tag-license">License:</dt> <dd class="tag-license"><ul class="dummy"><li>Apache-2.0</li></ul></dd> <dt class="tag-source">Source:</dt> <dd class="tag-source"><ul class="dummy"><li> <a href="scripts_validate-translations.js.html">scripts/validate-translations.js</a>, <a href="scripts_validate-translations.js.html#line3">line 3</a> </li></ul></dd> <dt class="tag-see">See:</dt> <dd class="tag-see"> <ul> <li><a href="https://schema.org/%20(Structured%20Data%20Standard)">https://schema.org/ (Structured Data Standard)</a></li> <li><a href="https://www.w3.org/International/%20(W3C%20Internationalization)">https://www.w3.org/International/ (W3C Internationalization)</a></li> <li>tests/validate-translations.test.js (Test Suite)</li> <li>Issue #98 (Hreflang Implementation)</li> </ul> </dd> </dl> </div> </article> </section> </div> <nav> <h2><a href="index.html">Home</a></h2><h3>Modules</h3><ul><li><a 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