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DNS

Optional DNS services and record types for your domains.

Futrou offers optional DNS services you can use for your domains. If you want to use our DNS servers, you can set them up with your domain registrar.

DNS zone

A DNS zone is a set of records that defines how a domain and its subdomains should behave. A zone contains various record types that determine where requests for that domain should be routed.

You can manage a DNS zone in Administration, on the serverlet’s DNS tab.

DNS records

DNS records are individual entries in a DNS zone that define specific domain behavior. Each record has a type, a name, a value, and a TTL (Time To Live).

Tip: After changing DNS records, it can take anywhere from a few minutes to a few hours for the changes to propagate across the internet. This depends on the TTL value and how long DNS servers cache the old records.

Supported record types

  • A record: maps a domain name to an IPv4 address. Example: mojedomena.cz. IN A 159.69.119.71

  • AAAA record: maps a domain name to an IPv6 address. Example: mojedomena.cz. IN AAAA 2a01:4f8:c010:d03::1

  • CNAME record: creates an alias from one domain name to another. Can’t be used for a domain’s apex record, only for subdomains. Example: www.mojedomena.cz. IN CNAME mojedomena.cz.

  • MX record: specifies the mail servers that accept email for a domain. Each MX record also has a priority (a number), where a lower number means higher priority. Example: mojedomena.cz. IN MX 10 mail.mojedomena.cz.

  • TXT record: stores arbitrary text information. Often used for domain ownership verification, SPF records, DKIM keys, and other purposes. Example: mojedomena.cz. IN TXT "v=spf1 include:_spf.google.com ~all"

TTL (Time To Live)

TTL determines how long DNS servers can cache a record before requesting its current value again. A lower TTL means more frequent updates, but also more load on DNS servers. The default TTL is usually 3600 seconds (1 hour).

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