How do I implement hreflang tags for multilingual SEO?

International SEO

Hreflang tells Google which language/region version of a page to serve.

Implementation steps:

(1) Add tags in theof each page, referencing every language version (including self-references).

(2) Alternatively, declare hreflang in your XML sitemap.

(3) Use correct codes: en-us for U.S. English, es-mx for Mexican Spanish.

(4) Test implementation using Google Search Console’s International Targeting report.

In 2025, hreflang is still essential, but with SGE, the stakes are higher—incorrect hreflang can cause Google’s AI to surface the wrong language version in AI summaries.

Always keep parity:

The same content sections (pricing, CTAs) should exist across all versions to avoid mismatched user experience.

Further Reading:

https://developers.google.com/search/docs