To add a new CNAME record:
1. Log in to the Cloudflare dashboard.
2. Ensure the website you want to update is selected.
3. Select the DNS app.
4. Under DNS Records, complete the fields for your CNAME record (see image below).
Your new record must point to a fully qualified domain name; for example, if you want to point the blog subdomain to the example.com domain.
5. If you want for Cloudflare to proxy your web traffic, ensure the cloud icon is orange.
6. Click Add Record.
Your new CNAME record should now appear in the list of DNS records.