I am working on a website, which is looking to targeting multiple Regions and Languages, using the following Domains:

  • www.example.com (American English targeting US Traffic);
  • en-gb.example.com (British English, targeting UK Traffic);
  • en-au.example.com (Australian English, targeting Australian Traffic)

To help indicate these Regional and Language variations, I have assigned the following hreflang Attributes, within the <head> tags:

<link rel="alternate" hreflang="en-us" href="https://www.example.com" />
<link rel="alternate" hreflang="en-gb" href="https://en-gb.example.com" />
<link rel="alternate" hreflang="en-au" href="https://en-au.example.com" />


As well as targeting American English speakers, in the US, I would also like the https://www.example.com Domain to be the 'catch-all' website that targets all traffic that does not fit the other Domains' criteria. With this in mind, would it be okay to add the hreflang="x-default" Attribute so that the https://www.example.com Domain ends up with an additional hreflang Attribute pointing to it?


Yes it's perfectly fine to re-use the https://www.example.com host as both the en-us and the x-default hreflang.

To be sure, you can use the International Targeting Report to debug possible issues after Google crawls your site: https://www.google.com/webmasters/tools/i18n

It's not mentioned explicitly in the hreflang documentation, but you can use the same URL for multiple languages, including the default.

Check out this answer by John Muller about using the same URL for multiple languages: https://twitter.com/JohnMu/status/837326127089729536?

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