DNS Records
Learn which DNS entries are relevant for web hosting.
1. General Information
Record
Description
Host
Host name, e.g.,
- @ = Root domain
- * = All subdomains not explicitly configured
in the DNS (Wildcard)
Type
Record type, e.g.,
- A = A-Record (Address Record)
- AAAA-Record (IPv6 Address Record)
- MX = Mail Exchange Record
- TXT = Text Record
- CNAME = Canonical Name Record
MX
For the MX type, a priority
is set that determines the
order in which mail servers
are contacted for the delivery
of emails.
Destination
Destination of the record.
valid
Validity of a record.
A-Record (Address Record)
Points a domain to an IPv4 address.
AAAA-Record (IPv6 Address Record)
Points a domain to an IPv6 address.
MX = Mail Exchange Record
Indicates the mail server for a domain.
TXT = Text Record
Stores textual information (often for verification or security purposes).
CNAME = Canonical Name Record
Clones the DNS of another domain.
2. Managing DNS Records
You can find the target addresses for the allocation in the Customer Control Panel (CCP) under the Overview tab in your web hosting product.
- To customize the DNS records, go to the menu item Domains in the Customer Control Panel (CCP).
- Then click on the Magnifying Glass Icon next to the desired domain and switch to the DNS tab.
Example DNS records could be as follows:
Web Server
Host
Type
Destination
Description
@
A
1.2.3.4
Root domain
points to the web
hosting server IPv4.
@
AAAA
2001:DB8::1
Root domain
points to the web
hosting server IPv6.
*
A
1.2.3.4
All subdomains not
defined separately
point to the web
hosting server IPv4.
*
AAAA
2001:DB8::1
All subdomains not
defined separately
point to the web
hosting server IPv6.
Mail Server
Host
Type
Destination
Description
A
1.2.3.4
Indicates the target
server for the MX
record mail.domain.tld.
@
MX
(10)
mail.mydomain.de
(mydomain.de is
to be replaced)
Indicates how
the mail server
can be reached.
@
MX
(50)
mx1.netcup.net
(mx1.netcup.net
is to be replaced
with the mail server
address)
Indicates how
the mail server
can be reached.
@
TXT
v=spf1 mx a include:_spf.webhosting.systems ~all
SPF — allows emails to be sent
from the server specified in the
A record and in the MX record,
as well as from our mail relay.
This makes it possible for third
parties to recognize whether
the email actually comes from
the domain owner.
key1._
domainkey
CNAME
key1._domainkey.webhosting.systems
DKIM — adds a digital
signature to ensure that
emails have not been
altered and come from
the rightful sender.
key2._
domainkey
CNAME
key2._domainkey.webhosting.systems
DKIM — adds a digital
signature to ensure that
emails have not been
altered and come from
the rightful sender.
Both DKIM records (key1 and key2) are required for complete security.
Note that the records will only work as intended if the default DNS settings are used and emails are sent exclusively via the product's mail server. Emails sent via alternative methods such as the web server (e.g. phpmail or sendmail) or an external mail server are excluded and not valid.