DNS Record Lookup

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

Hosting & Network

no1.or.kr runs on AS45389, with email via Microsoft 365.

Hosting network
AS45389AS45389
Managed DNS
Self-hosted / other
Email
Microsoft 365
IPv6 (AAAA)
Not enabled
CAA pinning
None

Sits alongside 9 other sites on AS45389. Stable here since we started watching (Oct 31, 2026).

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

DNS Records for no1.or.kr

HostnameTypeTTLPriorityContent
no1.or.krA0211.210.30.143
no1.or.krTXT0MS=ms78789225
no1.or.krTXT0v=spf1 include:spf.protection.outlook.com -all
no1.or.krMX0no1-or-kr.mail.protection.outlook.com
no1.or.krSOA300dns1.jbedu.kr admin.jbedu.kr 2023051826 1800 300 2592000 300
no1.or.krNS0dns2.jbedu.kr
no1.or.krNS0dns1.jbedu.kr
www.no1.or.krA0211.210.30.143

Get alerted the moment no1.or.kr's DNS changes

This page is today's snapshot. Turn on monitoring and we'll watch no1.or.kr 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