Cname vs a record for subdomain

CNAME and A records are often confused with each other, but there are differences. First, an A record can only connect the primary parent domain to the corresponding IP address. On the other hand, CNAME records link the parent domain to its alias or subdomains.

Can you use CNAME for subdomain?
What is the difference between subdomain CNAME and a?
Can a subdomain have an A record?
Why use a CNAME instead of an A record?
What is CNAME for sub domain?
Do subdomains need DNS records?
Which record points to a subdomain?
Can A record have CNAME and A?
Is CNAME slower than A record?
Can I use Alias records with my subdomain?
How does DNS work with subdomains?
Do subdomains need their own SPF record?
Can I use Alias records with my subdomain?
How do I add DNS records to a subdomain?
Which of the following can CNAME records not be used for?
Which record points to a subdomain?
Do subdomains need their own SPF record?
Can subdomains hurt SEO?
Do subdomains need cross domain tracking?

Can you use CNAME for subdomain?

A CNAME record is an alias for a subdomain. When you configure a CNAME record for a subdomain, DNS queries are no longer sent for the subdomain but for the domain or subdomain specified in the CNAME record to the appropriate name server.

What is the difference between subdomain CNAME and a?

An A Record maps a hostname to one or more IP addresses, while the CNAME record maps a hostname to another hostname.

Can a subdomain have an A record?

Subdomains can be modified as an A record that is pointing to an IP address. Or, they can be modified as a CNAME that is pointing to another domain name. A CNAME record cannot be pointed to an IP address. It is a kind of domain prefix like shop.domainname.com that uses an A record to be pointed to an IP Address.

Why use a CNAME instead of an A record?

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.

What is CNAME for sub domain?

The 'canonical name' (CNAME) record is used in lieu of an A record, when a domain or subdomain is an alias of another domain. All CNAME records must point to a domain, never to an IP address.

Do subdomains need DNS records?

And you need to provide a pair of DNS name servers for your sub-domain. They need to serve the following records: a Start of Authority SOA record for the sub-domain. two or more NS records.

Which record points to a subdomain?

DNS CNAME records are very commonly used to link a subdomain to a domain's A or AAAA record, instead of making 2 A records. For example, you could link blog.example.com with a CNAME record to an A record set on example.com, and they would both point to the same server.

Can A record have CNAME and A?

You cannot have a CNAME record and other records for the same name. If the scenario in the question is that you would have a CNAME record and an A record side by side, that is not really a concern since it is not possible.

Is CNAME slower than A record?

It could be slower as it could require 2 DNS queries. But in the real world a users web browser will not know in advance that sub.domain.com is a CNAME and it will ask for the A or AAAA record of sub.domain.com .

Can I use Alias records with my subdomain?

¶ You will use an ALIAS record when you want the domain itself (not a subdomain) to “point” to a hostname. The ALIAS record is similar to a CNAME record, which is used to point subdomains to a hostname. The CNAME record only can be used for subdomains, so the ALIAS record fills this gap.

How does DNS work with subdomains?

Subdomains can point to the same DNS server as the associated domain name, or to their own DNS zone. To speed up the loading time for certain webpages or subdomains, some webmasters create a DNS subdomain delegation. This assigns a server to each subdomain.

Do subdomains need their own SPF record?

SPF policies do not automatically get inherited by subdomains. If you use SPF to authenticate your emails and you are sending emails using subdomains, you would need to individually configure SPF records for these subdomains by making modifications to your DNS entries.

Can I use Alias records with my subdomain?

How do I add DNS records to a subdomain?

Click on the DNS tab and scroll to the record card (or quickly jump to the DNS records for that domain by clicking the button in the top right). From there, click the Add record drop-down button, and select the type of record you want to create. A , ALIAS , and CNAME records will all create a new subdomain.

Which of the following can CNAME records not be used for?

A CNAME record must always point to another domain name and never directly to an IP address. A CNAME record cannot co-exist with another record for the same name.

Which record points to a subdomain?

Do subdomains need their own SPF record?

Can subdomains hurt SEO?

Having an unnecessary subdomain spreads your SEO efforts across two sites instead of focusing on one. This means it could take double the links and content to get the same results if you simply focused on one domain. The consequences can be even worse if you have a blog on a subdomain.

Do subdomains need cross domain tracking?

If you have the same tracking code installed on multiple domains and you want to track a single user as they visit those domains, you need cross-domain tracking. BUT if you have a single domain with multiple subdomains, you don't need cross-domain tracking, just subdomain tracking.