DNS Record Lookup

Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain

Hosting & Network

rex-grp.com runs on AS17506, with email configured.

Hosting network
AS17506AS17506
Managed DNS
Self-hosted / other
Email
Configured
IPv6 (AAAA)
Not enabled
CAA pinning
None

Sits alongside 3,530 other sites on AS17506. Stable here since we started watching (Oct 8, 2026).

DNS Records for rex-grp.com

HostnameTypeTTLPriorityContent
rex-grp.comA0221.255.47.3
rex-grp.comMX020ns1.rex.co.jp
rex-grp.comMX010mail.rex.co.jp
rex-grp.comTXT0v=spf1 mx +ip4:221.255.47.2 +ip4:221.255.47.3 +ip4:111.101.9.162 +ip4:111.101.9.163 +ip4:122.213.146.21 +ip4:210.172.109.18 ~all
rex-grp.comTXT0miro-verification=cc163fe4f74985ee22c743a38b68e977e3767171
rex-grp.comSOA86400ns1.rex.co.jp root.rex.co.jp 2025091801 900 3600 3600000 86400
rex-grp.comNS0ns0.rex.co.jp
rex-grp.comNS0ns1.rex.co.jp

Get alerted the moment rex-grp.com's DNS changes

This page is today's snapshot. Turn on monitoring and we'll watch rex-grp.com continuously, notifying you the moment anything moves across all three signals:

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

We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.

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Answers use the live DNS records shown on this page. AI-generated — double-check anything important.

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