Log into your OVHcloud dashboard and head over to the Web section of the control panel. It should be in the horizontal menu at the top of the page. Once you’ve selected it, click on the Associated domains tab. Here, you can find out whether your CNAME is valid or not. If the CNAME tag under Diagnosis section appears as red, it means that you need to confirm that you are the owner of this domain name. You have 48 hours to do so. To perform this validation, you have to log into your GoDaddy account (or the web host that you’ve bought the domain name from) and change the DNS (Domain Name System) settings. For GoDaddy, simply log into your account and go to the Domain Manager. Then, go to the domain name you want to validate and click on Domain Settings. Navigate to Additional Settings and click on Manage DNS:
At the bottom of Records, select Add.
Select the CNAME type.
Complete the fields. In the Host section, copy the CNAME record you get from OVHcloud. It should be visible whenever your cursor is over the red CNAME tag in the Associated Domains tab for the OVHcloud In Points to, you can insert “@” if you want it connected to your root domain.