DNS Record Lookup

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

Hosting & Network

one21adminportal.com runs on Amazon AWS, with email via IONOS.

Hosting network
Amazon AWSAS16509Amazon AWS
Managed DNS
Self-hosted / other
Email
IONOS
IPv6 (AAAA)
Not enabled
CAA pinning
None

Sits alongside 5,876,685 other sites on Amazon AWS. Stable here since we started watching (Oct 10, 2026).

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

DNS Records for one21adminportal.com

HostnameTypeTTLPriorityContent
one21adminportal.comTXT0v=spf1 include:_spf-us.ionos.com ~all
one21adminportal.comA03.173.21.154
one21adminportal.comA03.173.23.154
one21adminportal.comA03.173.22.154
one21adminportal.comNS0ns1124.ui-dns.de
one21adminportal.comNS0ns1027.ui-dns.biz
one21adminportal.comNS0ns1097.ui-dns.com
one21adminportal.comNS0ns1124.ui-dns.org
one21adminportal.comMX010mx00.ionos.com
one21adminportal.comMX010mx01.ionos.com
one21adminportal.comSOA600ns1097.ui-dns.com hostmaster.1und1.com 2017060109 28800 7200 604800 600
www.one21adminportal.comA03.173.23.154
www.one21adminportal.comA03.173.21.154
www.one21adminportal.comA03.173.22.154

Get alerted the moment one21adminportal.com's DNS changes

This page is today's snapshot. Turn on monitoring and we'll watch one21adminportal.com continuously, notifying you the moment anything moves across all three signals:

DNS monitor showing the hosting provider, current A, MX, NS, and TXT records, and a history of MX and TXT changes

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, CNAME, TXT 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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Beta

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