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I'm currently putting together an international sitemap for a website that has an set up like the following:

example.com/us
example.com/au
example.com/ca
example.co.uk
example.se

I'm planning on including the hreflang tags within sitemaps for each domain, to make sure google serves up the right version. However, I'm a bit sceptical about including the non .com domains within the .com sitemap - and the other way round for .co.uk and .se sitemaps.

The way I've been doing it follows the following example:

 <url><loc>http://www.example.com/us/</loc></url> 

Putting in the .co.uk and .se domains within the .com sitemap just doesn't feel right - is this actually the right way to do it?

Thanks in advance

I'm currently working with a global brand who need localisation in each of their territories.

They're operating on a single .com domain name, with different language versions in separate directories.

Example:
domain.com/en/
domain.com/fr/
domain.com/ar/

We're using ahreflang tags to make sure Google shows the correct language version for each region.

Now onto my question...

As the domain is a .com with an English company name, when it comes to the Arabic version of the website, will having a completely mixed language URL like this be detrimental to the site's performance in searches from the middle east?

Currently we're coming up with URLs like the following:

domain.com/blog/عنوان بلوق عربية طويلة حقا على شيء مثير جدا للاهتمام

Is this a bad thing?