The full form of CNAME is Canonical Name. It’s used on Computing ,Programming & Development in Worldwide
A Canonical Name (CNAME) Record is used in the Domain Name System (DNS) to create an alias from one domain name to another domain name. A common example is the www subdomain which is provided as an alias to the root domain name – users accessing “www.example.com” are referred to the root domain (or DNS zone apex) “example.com”.
A few common uses of CNAME records are:
- Providing a separate hostname for specific network services, such as email or FTP, and pointing that hostname to the root domain
- Many hosted services provide a subdomain for each customer on the service provider’s domain (e.g. company.hostname.com), and use CNAME to point to the customer’s domain (www.company.com).
- Registering the same domain in several countries and pointing the country versions to the main “.com” domain
- Pointing from several websites owned by the same organization to a primary website
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