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Can a CNAME be a wildcard?
A wildcard DNS record is a record that answers DNS requests for any subdomain you haven’t already defined. You can create wildcard A records and CNAME records by entering an asterisk (*) in the Host field when creating a DNS record. For example, if you create the wildcard A record *.
Should I use CNAME or A?
General rules: Use an A record if you manage which IP addresses are assigned to a particular machine, or if the IP are fixed (this is the most common case). Use a CNAME record if you want to alias one name to another name, and you don’t need other records (such as MX records for emails) for the same name.
Do subdomains have a records?
A subdomain will also have a separate zone file with a SOA record (Start of Authority). Most domain registries only allocate a two-level domain name. Hosting services typically provide DNS Servers to resolve subdomains within that master domain.
Is it possible to have a wildcard CNAME DNS record valid?
I know it’s valid to have a DNS A record that’s a wildcard (e.g. *.mysite.com). Is it possible/valid/advised to have a wildcard CNAME record? It is possible to do this. At one point it was up in the air a bit until 4592 clarified that it should be supported. Just because it is possible doesn’t mean it is supported by all DNS providers.
What’s the difference between CNAME and subdomain Records?
It’s considered to be the perfect way to point a domain o a sub-domain to your hosting server. This particular type of record links a name to another name on a server. And it never works for an IP address. CNAME records are classed as standard DNS records. These records have made it easier to manage your domains than A-Records.
Can you use a CNAME record for a root domain name?
You CAN’T use a CNAME record if there are other records on the same name. You CAN’T create a CNAME record for a root domain name. You CAN use CNAME for subdomains on the same server. Using CNAME for subdomains is easy and straight-forward. This makes a sub-domain transfer easier than trying to do it with A-Records.
Which is an example of a wildcard DNS record?
A wildcard DNS record is a record that will match requests for non-existent subdomains. A wildcard DNS record is specified by using a “*” as the part of a domain name, e.g., *.example.com.