cname is an indirection (alias) so it is slower, because it looks up and get an A record, which then looks up your ip. you can even cname a cname. so for efficiency you want to use a record. however, it is not a cut and dry thing really so you just have to weigh it...
The A record maps a name to one or more IP addresses when the IP are known and stable. The CNAME record maps a name to another name. It should only be used when there are no other records on that name. The ALIAS record maps a name to another name, but can coexist with other ...
Alias record set No This setting can only be applied to A, AAAA, and CNAME record types. TTL 1 The time to live, which specifies the period of time each DNS server caches the resolution before being purged. TTL unit Hours This value can be seconds, minutes, hours, days, or ...
CNAME or Alias record A CNAME record maps aspecificdomain, such ascontoso.comorwww.contoso.com, to a canonical domain name. In this case, the canonical domain name is the[myapp].cloudapp.netdomain name of your Azure hosted application. Once created, the CNAME creates an alias for the[myapp...
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This topic describes how to add a Domain Name System (DNS) record in the Alibaba Cloud DNS console. Types of DNS records Alibaba Cloud DNS supports the following types of DNS records: A record Canonical name (CNAME) record Mail exchanger (MX) record AAAA record Text (TXT) record Explicit ...
CNAME or Alias recordA CNAME record maps a specific domain, such as contoso.com or www.contoso.com, to a canonical domain name. In this case, the canonical domain name is the [myapp].cloudapp.net domain name of your Azure hosted application. Once created, the CNAME creates an alias for...
What Is A CNAME Record? ACNAME recordis a DNS record that provides an association for alias domains and subdomains to the main, parent domain. The “C” stands for “canonical,” as this DNS record connects subdomains to the canonical name-domain or the records delivered for another DNS hos...
An alias record, like a CNAME record, maps a hostname to another hostname. But the difference is that the CNAME doesn't allow other DNS records on the same hostname, while the alias record does. Also, ALIAS directly returns an IP address and doesn't require the DNS client to resolve ...
A diferença entre um registro CNAME e um registro ALIAS não está no resultado, mas em como eles resolvem o registro DNS de destino quando consultados.