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URL: https://dev.to/2gelbuy/automated-internal-linking-with-tag-based-content-graphs-571n

⇱ Automated Internal Linking with Tag-Based Content Graphs - DEV Community


Why Internal Links Matter

Internal links distribute page authority, help Google discover content, and keep users engaged. For 80+ articles, manual linking is unsustainable.

Tag-Based Link Graph

Every article has tags in frontmatter. The algorithm finds related articles by tag overlap:

function buildLinkMap(articles) {
 const linkMap = {};
 for (const article of articles) {
 const related = articles
 .filter(a => a.slug !== article.slug)
 .map(a => ({
 slug: a.slug,
 overlap: a.tags.filter(t => article.tags.includes(t)).length
 }))
 .filter(a => a.overlap > 0)
 .sort((a, b) => b.overlap - a.overlap)
 .slice(0, 6);
 linkMap[article.slug] = related;
 }
 return linkMap;
}

Output Format

The script generates a TypeScript file with related articles that components import for rendering.

Dry Run Mode

Run with --dry-run to preview changes before committing.

Impact

After implementing automated internal linking:

  • Average internal links per article: 1.2 to 5.4
  • Pages with zero internal links: 23 to 0
  • Google discovered 17 more pages within two weeks

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