A CNAME Record (Canonical Name Record) is a type of DNS Record that shows one domain as an alias for another domain — the so-called canonical domain. This is efficient when you run multiple services, with different ports, but from a single IP Address.
For example, if you wish to redirect for.example.com to example.com, then you would direct the CNAME Record of for.example.com to the A Record of example.com. So if you ever change your IP Address, you just need to change the A Record for example.com.
CNAME Records must always point to another domain name, never directly to an IP Address.
You should avoid pointing one domain with a CNAME Record to another domain name with a separate CNAME Record, as this is inefficient. Instead, you should point both domains to the same A Record.
Uses of CNAME Records are often maximised by business owners and companies by pointing several websites owned by the same organisation to a primary website.
To update a CNAME Record for your domain name, click here.
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