There is one Website for the main company translated in two languages:
The company also has a subsidiary, linked under:
Now you can access the subsidiary with its on domainname pointing to the same root and redirected with .htacess to "subsidiary.html" in both languages:
Accessing the site with the domain subsidiary.com makes you browse the entire site under the domainname "subsidiary.com".
The question is: How do I set the proper hreflang tags for google?
Do I have to set the hreflang tag for both domainnames like this in each page?
<link rel="alternate" hreflang="de" href="http://main-company.com/de/subsidiary.html" /> <link rel="alternate" hreflang="en" href="http://main-company.com/en/subsidiary.html" /> <link rel="alternate" hreflang="de" href="http://subsidiary.com/de/subsidiary.html" /> <link rel="alternate" hreflang="en" href="http://subsidiary.com/en/subsidiary.html" />
or is it a problem to set the hreflang tags twice for de and en with different domainnames?