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joybrain.co.jp

DNS Records

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Hosting & Network

joybrain.co.jp runs on AS2497, with email configured.

Hosting network
AS2497AS2497
Managed DNS
Self-hosted / other
Email
Configured
IPv6 (AAAA)
Not enabled
CAA pinning
None

Sits alongside 2,365 other sites on AS2497. Stable here since we started watching (Sep 14, 2026).

DNS Records for joybrain.co.jp

HostnameTypeTTLPriorityContent
joybrain.co.jpMX010mx.securemx.jp
joybrain.co.jpA0202.238.234.8
joybrain.co.jpSOA30001.dnsv.jp hostmaster.dnsv.jp 1730797294 3600 900 604800 300
joybrain.co.jpTXT0v=spf1 include:spf.securemx.jp ip4:202.238.234.7 ip4:202.238.234.9 ip4:202.238.234.43 ~all
joybrain.co.jpTXT0MS=F0832E43DF6427F6DB1BC2D1CC783F96E361F982
joybrain.co.jpTXT0MS=ms48192380
joybrain.co.jpNS001.dnsv.jp
joybrain.co.jpNS004.dnsv.jp
joybrain.co.jpNS003.dnsv.jp
joybrain.co.jpNS002.dnsv.jp

Get alerted the moment joybrain.co.jp's DNS changes

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Uptime

We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.

DNS changes

We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.

TLS certificate

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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