Hreflang tags tell Google which version of a page to show users based on their language and region, preventing the wrong-language version from ranking for the wrong audience. They are one of the most commonly misimplemented technical SEO elements on international sites.
Basic Syntax
A hreflang tag in the page head looks like: <link rel="alternate" hreflang="en-us" href="https://example.com/us/" />. Every page in a set needs to reference every other page in the set, including itself – a self-referencing tag is required, not optional.
Common Implementation Mistakes
- Missing return tags. If page A links to page B, page B must link back to page A. A one-way reference breaks the entire cluster.
- Wrong language or region codes. Using “uk” instead of the correct ISO code “gb” for the United Kingdom is a frequent error.
- No x-default tag for the fallback page shown to unmatched visitors.
- Inconsistent URLs – referencing a non-canonical or redirected URL instead of the live, canonical one.
How to Verify Hreflang Is Working
Google Search Console’s International Targeting report flags hreflang errors directly. Cross-check with a crawler that validates return tags across the full set, since a single broken reciprocal link can silently remove pages from the cluster without any visible warning.
Frequently asked questions
Do I need hreflang tags if I only have one language but multiple countries?
Yes. Hreflang can target region alone (e.g. en-us vs en-gb) even when the language is identical, which matters for pricing, spelling, and local relevance differences.
Can hreflang tags go in the sitemap instead of the page head?
Yes, hreflang can be implemented via XML sitemap annotations instead of head tags, which is often easier to manage at scale on large sites.
What happens if hreflang tags conflict with canonical tags?
Conflicting signals confuse Google about which page to treat as authoritative. Hreflang and canonical tags need to be implemented consistently together, not as separate, disconnected systems.
Serpwize handles international technical SEO, including hreflang audits and fixes, for multi-region sites. See our SEO outsourcing service.
