Lang Subdomain Rule


I have a netlify hosted website, for wich I set a custom domain wich I own.
This is working great.

I’ve tried to add a subdomain CNAME to (the lang switch is managed client side)

I’ve added this line in my DNS records in Netlify :

That was working this morning but now I get a “Not found” message as you could see it by going to

Is my CNAME rule ok ? Should I save “” instead of “” as my DNS record value ?

Thanks for your help

Hi, @vdilly, and welcome to our Netlify community site.

Please try deleting the CNAME record and then adding the subdomain as a custom domain here:

This should create the special NETLIFY (and possible NETLIFYv6) type system records which connect domain names to sites at Netlify when Netlify DNS is being used.

If this doesn’t work, please let us know.

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