What steps should I take to resolve the "DNS_PROBE_FINISHED_NXDOMAIN" issue when adding "singlecase.fr" as a new site on Webflow?

If you are encountering the "DNS_PROBE_FINISHED_NXDOMAIN" issue when adding "singlecase.fr" as a new site on Webflow, it means that the DNS (Domain Name System) cannot resolve the domain name "singlecase.fr". This issue typically occurs when there is an error in the DNS configuration or when the domain name is not registered or expired. To resolve this issue, you can follow these steps:

1. Double-check the domain name spelling: Make sure that you have entered the correct domain name "singlecase.fr" without any typos. Even a small typo can prevent the DNS from resolving the domain.

2. Check if the domain is registered and active: Use a domain checker tool to see if the domain name "singlecase.fr" is registered and active. If not, you will need to register the domain before you can use it with Webflow.

3. Verify the DNS configuration: Ensure that the domain's DNS settings are correctly configured. This involves adding the necessary DNS records for your Webflow site. To do this, follow these steps:

• Log in to your domain registrar or DNS provider.
• Go to the DNS settings or DNS management section.
• Add a new DNS record of type "CNAME" with the hostname "www" and the value "proxy-ssl.webflow.com". This will route the traffic from "www.singlecase.fr" to your Webflow site.

1. Clear DNS cache: Clearing your local DNS cache can help resolve DNS-related issues. To do this, follow these steps based on your operating system:

• Windows: Open the command prompt and run the command "ipconfig /flushdns".
• macOS: Open the Terminal app and run the command "sudo killall -HUP mDNSResponder".

1. Wait for DNS propagation: Sometimes, DNS changes can take time to propagate across the internet. It can take up to 48 hours for the changes to fully propagate. During this time, you may still encounter the "DNS_PROBE_FINISHED_NXDOMAIN" error. Be patient and wait for the DNS propagation to complete before testing again.

If you have followed these steps and are still experiencing the "DNS_PROBE_FINISHED_NXDOMAIN" issue, it is recommended to reach out to Webflow support or your domain registrar for further assistance. They will be able to help you troubleshoot the issue and ensure that your domain is properly configured with Webflow.

Additional Questions:

1. How do I check if a domain name is registered and active?
2. What are DNS records and how do I add them?
3. How long does DNS propagation take?