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optimal-project.cz

DNS Records

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Hosting & Network

optimal-project.cz runs on AS15685, with email configured.

Hosting network
AS15685AS15685
Managed DNS
Self-hosted / other
Email
Configured
IPv6 (AAAA)
Not enabled
CAA pinning
None

Sits alongside 4,999+ other sites on AS15685.

Recently changed networks: AS41453 → AS15685 (as of Sep 4, 2026)

The apex and www are the same hosting — the apex via A records.

DNS Records for optimal-project.cz

HostnameTypeTTLPriorityContent
optimal-project.czA082.208.7.99
optimal-project.czTXT0v=spf1 mx a ip4:89.250.240.0/22 ip4:81.0.216.152/29 include:spf.protection.outlook.com include:_spf.google.com ~all
optimal-project.czMX013manon.vellum.cz
optimal-project.czMX015sofia.optimalproject.cz
optimal-project.czMX023mail2.vellum.cz
optimal-project.czSOA14400manon.vellum.cz hostmaster.vellum.cz 2026080401 14400 4380 1209600 14400
optimal-project.czNS0manon.vellum.cz
optimal-project.czNS0dolly.vellum.cz
www.optimal-project.czA082.208.7.99

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About DNS Records

DNS (Domain Name System) records are instructions that provide information about a domain, including its IP addresses, mail servers, and other services. Common record types include:

  • SOA (Start of Authority) - Contains administrative information about the zone
  • NS (Nameserver) - Specifies authoritative nameservers for the domain
  • A (Address) - Maps a domain to an IPv4 address
  • AAAA - Maps a domain to an IPv6 address
  • CNAME (Canonical Name) - Creates an alias pointing to another domain
  • MX (Mail Exchange) - Specifies mail servers for the domain