Error when trying to add my domain to my new user custom_domain is owned by another account

[perry]

hey there @Lesleyvdp , lets back up a bit.

are you trying to use the domain katachtig.nl as the custom domain for your netlify site kattenvriend.netlify.app? is that when you are getting the error message another domain is using this account?

if that’s the case then you need to prove that you own the domain katachtig.nl by creating a special txt record as described here:

[Support Guide] "another site is using this domain" Verifying domain ownership for Netlify production domain

Last Reviewed by Netlify Support Staff: September 2023 Are you receiving the error “another site is using this domain” when you are trying to add your production domain to your netlify site? Read on! This is easy to fix. This occurs when you are trying to add a production domain that already exist on Netlify under a different account. Do you know who might be using the domain (maybe a previous collaborator or an agency you’ve worked with in the past?), the quickest way to get this resolved i…

we will then verify that you were able to create that record, which we consider sufficient proof you own the domain. then we will remove the block and you can assign that domain to your netlify site.