Hi, @mathieudutour, and welcome to our Netlify community site.
Please feel free to make new topics in the #admin category if this comes up again for faster replies.
First, I do see there is an unused Netlify DNS configuration for this domain here:
Please delete that configuration if you are not using Netlify DNS as it will only cause issues. (Note, I do not show that enabled or working at this time. I’m pretty sure it is safe to delete.) The name servers used at not the Netlify control name servers:
lona.design. 172800 IN NS ns-1398.awsdns-46.org.
lona.design. 172800 IN NS ns-1965.awsdns-53.co.uk.
lona.design. 172800 IN NS ns-251.awsdns-31.com.
lona.design. 172800 IN NS ns-869.awsdns-44.net.
For third-party DNS, the instructions are found above (and here is a link).
I do show the branch has been deployed. However, I’m not seeing a subdomain which exactly matches the branch name (which is a requirement). The subdomain is
dev but the branch name is
dev.lona.design. 3600 IN CNAME develop--lona-frontend.netlify.com.
Would you please change the subdomain to match the branch and then let us know. (Changing
develop.lona.design.)We’ll be able to update the SSL certificate once this is done.
If there are questions, please let us know.