The CNAME record will point your domain or subdomain to the IP address of the destination hostname. So, if the IP of the destination hostname changes, you won't need to change your DNS records as the CNAME will have the same IP.
NOTE: Please don't set up a CNAME record for a bare domain e.g., yourdomain.tld (@ hostname) since it may affect the operation of the domain's MX records and, consequently, the email service. In most cases you will need to create a CNAME record for www (or other subdomain) and URL Redirect for @ that will point to http://www.yourdomain.tld/
Follow these steps to create a CNAME record for your domain
1) Sign into your Listedhosting account (The Sign In option is available in the header of the page)
2) Select Domains from the left sidebar and click the My Domain
3) Click on the Domain date of the domain you want to make changes too.
4) On the right side, click on DNS Management option to make changes.
5) Click on Save Changes.
