Tradux with SSR and SEO


For search engines to index your translated content properly, languages should be tied to the URL (e.g., `mysite.com/es/about`). Search engines ignore local storage and cookies.

Tradux supports this natively. Instead of using `setLanguage()`, use your framework's router to extract the language from the URL and pass it directly to `initTradux(lang)` on the server.

When using custom SSR setups (like Astro or Express), you can use Tradux isolated instances to intercept requests, read the translation file on the server, and inject the correct `<html lang="x">` and `<title>` tags into your raw HTML before serving it to the client.