Recently I discovered that we can add
hreflang to our
<a> tags to inform about the language of the page which is being linked.
It seems to me that it is a perfect fit for links pointing to localized version of a current page. However, the question is whether search engines actually pay attention to this attribute? If not, then it is just a couple of extra bytes which can only harm SEO (even if by little).
I was long thinking about adding some extra info to such "localized" links as it kind of makes sense. We do have those on the website, but we do not really want them to be treated in the same way as other links. After all, localized versions of the website should live in parallel and we do not necessarily want search engines to think that Page Rank should flow as easily between them as within them.
Would be great if someone could share their insight.