Once we have finished our web site and we have translated it into different languages, we must make an important decision. Although it seems very simple, the consequences involved could make this step detrimental to the SEO of our website.
We can set the default page to the language of the visitor's browser
That way, when someone enters with a German browser, they are automatically redirected to the German site. (This only happens if the German site exists. If not, they will be redirected to the site in the default language.) If a French browser is being used, they will be redirected to the French site, etc. This is very useful for the user and it takes no time at all to set it up. But Is this bad for the SEO?