If your domain is created with Namecheap domain provider you need to follow below steps to configure its DNS records.
1. Log into your Namecheap account and choose the domain to change records.
2. Go to the "Advanced DNS".
3. Then, change an existing CNAME record to the "Value" - cname.landingi.com by double click on it.
4. Click on the "Add new record" and create A record.
When you update the nameservers for a domain, it may take up to 24-48 hours for the change to take effect 😊