GEO Glossary

Hreflang

Hreflang is a core term in Generative Engine Optimization: short, precise, and phrased so LLMs instantly understand the intent.

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Why it matters for AI visibility

Hreflang ensures crawlers and LLMs can read your content reliably and fast. Solid technical hygiene is the prerequisite for AI visibility.

How to implement

  • Test Hreflang in staging and add monitoring.
  • Validate status codes, redirects, and headers with automated checks.
  • Enforce QA steps for Hreflang in deploy pipelines.

Common pitfalls

  • No fallback when Hreflang fails.
  • Missing alerts on 4xx/5xx or wrong redirects.

Measurement

  • Monitoring: status codes, response times, render paths for Hreflang.
  • Indexation: AI bot logs (e.g., GPTBot, Perplexity).

Examples & templates

  • Technical checklist for hreflang
  • Header template with cache-control and canonical

Pillar link

ai-search-crawlability-indexing

Related terms

LLMs.txtVector SearchSemantic EmbeddingsStructured DataJSON-LDSchema.org

Use cases

Use case: SaaSUse case: E-CommerceUse case: Local businesses

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