The A and CNAME records are the two common ways to map a host name (“name”) to one or more IP addresses. There are important differences between these two records.

The A record points a name to a specific IP. If you want blog.example.com to point to the server 185.31.17.133 you’ll configure:

blog.example.com.     A        185.31.17.133

The CNAME record points a name to another name instead of to an IP. The CNAME source represents an alias for the target name and inherits its entire resolution chain.

An A record points a name to an IP. A CNAME record can point a name to another CNAME or to an A record.

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