With the default Sitecore Item-level language fallback enabled configured on our site, a page without a Korean version displays the English version.
/ko/mypage displays the content of
However all the dictionary content is displayed in Korean because the context is still the Korean language. So on those pages we can have both English and Korean content at the same time.
Given that the two urls are different but the content is the same, doesn't it have a negative impact on SEO and create duplicate content ?
Or is the Item-level language fallback functionality already optimized for this ?