Manage DNS records

Create and manage DNS records in the Gcore Customer Portal.

Non-advanced interface mode. Verify that the Advanced toggle is off before following these steps:

Balancing and dynamic response are available in advanced mode.

Create a DNS record

1. Navigate to All zones and select the domain zone to which records should be added. Or, click the three-dot icon on the right and then click Go to records.

2. Click Add record. The form opens in the records list.

3. In the Type field, select a record type — A, AAAA, NS, CNAME, MX, SRV, HTTPS, TXT, CAA, or SVCB.

4. In the Name field, specify the subdomain to which the record belongs. Select from the following options:

• Leave the field blank to add a record for the main domain (apex/naked domain).
• Enter the subdomain name for a specific subdomain — one creates a record for one.example.com.
• Enter an asterisk (*) to add a wildcard record for all subdomains at once.

5. In the TTL field, specify the time to live in seconds. This determines how long recursive DNS servers cache the record. With a TTL of 300 seconds, a change to an A record value from 1.2.3.4 to 5.6.7.8 takes up to 5 minutes to propagate — resolvers return the old value until the cache expires.

6. In the Content field, enter a value for the record type.

Examples of values for different record types

Record type	Value
A	IPv4 address of the server to which the domain resolves. Example: 128.128.128.128
AAAA	IPv6 address of the server to which the domain resolves. Example: 2001:0db8:85a3:0000:0000:8a2e:0370:7334
NS	Name of the zone to which the domain is delegated. Example: ns1.smth.com
CNAME	Domain name or zone the domain redirects to. Example: uuuuu8.cdn.co
MX	Name of the mail server that receives mail for the domain. When using multiple mail servers, fill in the Priority field for each. The lower the value, the higher the priority. Example: ASPMX.L.GOOGLE.COM
SRV	Canonical name of the machine providing the service. Example: sip.example.com
HTTPS	Parameters for accessing a web service via HTTPS, including protocol version and IP hints. Example: example.com. 1800 IN HTTPS 1 . alpn=h3,h3-29,h2 ipv4hint=1.2.3.4,9.8.7.6 ipv6hint=2001:db8:3333:4444:5555:6666:7777:8888, 2001:db8:3333:4444:CCCC:DDDD:EEEE:FFFF
TXT	Arbitrary text associated with the domain. Example: logmein-verification-code=976afe6f-8039-40e4-95a5-261b462
CAA	Certificate authorities permitted to issue SSL/TLS certificates for the domain. Format: CAA [flags] [tag] “[value]” — the value must be enclosed in double quotes. Example: 0 issue “comodo.com”
SVCB	Service binding record that specifies connection parameters for a service endpoint. Example: 1 . alpn=h2

7. Click Add.

The Gcore DNS Lookup tool confirms the record was created correctly.

Manage a DNS record

1. Navigate to All zones and select the domain zone to manage. Or, click the three-dot icon on the right and click Go to records.

2. Click the pencil icon next to the record to expand the edit panel.

3. Change the TTL, value, or both.

4. Click Save to apply the changes.

5. To delete the record, click Delete record in the expanded panel, then click Yes, delete in the confirmation dialog.