Duplicate content issues across different languages

If you're running a multilingual site, duplicate content across language versions is a problem you need to actively manage. Without proper implementation, Google may see your English and French pages as duplicate content rather than intentionally different versions of the same page for different audiences.

The solution is hreflang tags. These tell Google that pages in different languages are translations of each other, which audience each is intended for, and that they should not be treated as duplicates. A properly implemented hreflang setup eliminates the duplication problem and tells Google to serve the right language version to the right searcher.

Hreflang tags go in the head section of each page and reference all language variants including the page itself. For a site with English and French versions:

<link rel="alternate" hreflang="en" href="https://yourdomain.com/en/page" />
<link rel="alternate" hreflang="fr" href="https://yourdomain.com/fr/page" />
<link rel="alternate" hreflang="x-default" href="https://yourdomain.com/page" />

The x-default tag indicates the fallback version for users not matched to a specific language. Every language version of a page should include the full set of hreflang tags referencing all variants.

In Webflow, hreflang tags for manually managed multilingual sites are added via custom code in Page Settings → Custom Code → Head. For CMS-driven multilingual content, you can bind the hreflang values dynamically using Webflow's embed elements and CMS fields. Webflow's native Localization feature handles this automatically for sites using that functionality.

Common mistakes: only adding hreflang to one direction (the English page references French, but the French page doesn't reference English back — hreflang must be reciprocal). Using the wrong language codes (use IETF language tags like en-US or fr-FR, not just en or fr, for language+region targeting). Validate your hreflang implementation using Google's Hreflang Tag Testing Tool after launch.