If your client's website is showing a double 'www' and not loading when accessing the custom domain in Webflow, there could be a few possible issues causing this problem. Here are some troubleshooting steps you can follow:
1. Clear your browser cache: Sometimes, caching issues can cause strange website behavior. Clearing your browser cache can often resolve this problem. Try accessing the website in an incognito or private browsing window to see if the issue persists.
2. Check the Webflow settings: Login to your Webflow account and navigate to the project settings. Under the "Hosting" tab, make sure that the primary domain is correctly set up without any additional 'www'. If you see a double 'www' there, remove it and save the changes.
3. Check DNS settings: You mentioned that the A records and CNAME are correctly set up in GoDaddy, but it's worth double-checking the settings to ensure there are no typos or mistakes. In GoDaddy's DNS settings, make sure you have an A record pointing to Webflow's IP address and a CNAME record pointing to the Webflow default hosting URL.
4. Wait for DNS propagation: DNS changes can take some time to propagate globally. Even when everything is set up correctly, it might take a while for the changes to take effect. Usually, it takes several hours, but it can sometimes take up to 48 hours. Therefore, if you recently made any DNS changes, it's possible that the double 'www' issue will resolve itself once the propagation is complete.
5. Contact Webflow support: If you've followed the steps above and the issue persists, it's best to reach out to Webflow support directly. They have in-depth knowledge and experience in troubleshooting these types of issues and should be able to assist you further.
By following these steps, you should be able to identify and resolve the issue with the double 'www' and get your client's website loading correctly on their custom domain in Webflow.