Internationalization / multi language website

I have an existing client site with a subdomain for a different country - www.de.domain.com for germany but they also have www.domain.com for US


Ideally it would all be under domain.com right? Is it too late to redirect everything to domain.com and then use hreflang?

Yes, it's a good idea to have everything under domain.com and use hreflang tags. It's not too late to make this change.

Here’s how to do it:

1. Plan the redirects: Map out which pages on the subdomain should redirect to which pages on the main domain.
2. Implement 301 redirects: Use server-side redirects to permanently move the content.
3. Update Links : Change all internal links to point to the new URLs.
4. Set up hreflang tags: Add these tags to your pages to indicate the intended language and region for each page.
5. update Sitemaps: Update and submit your XML sitemaps with the new URLs.
6, Monitor the changes: Keep an eye on your site's traffic and rankings to ensure the redirects and hreflang implementation are working correctly.

Yep , you can redirect traffic to your domain.com and use hreflang tags on the main website. It's not too late.

For the technical implementation, if it is Wordpress, I suggest a plugin named Bogo