What are A records, MX records and CNAME records?
A records are address records. They are used to assign IP addresses to host (domain) names. This is the standard record for translating host names into IP addresses. MX records are mail exchange records. They are used to create mail routes for host (domain) names. CNAME records are canonical name records. They are used to add subdomains that point to other domains or subdomains. CNAME records must point to other host names. They cannot point to their own host name, an IP address, or a URL.