DNS Record Lookup

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

kosca21.or.kr

DNS Records

WhoisRDAPDNS RecordsCertificateUptimeDiagnosticsHistoryHide Contact Info

Hosting & Network

kosca21.or.kr runs on Korea Telecom.

Hosting network
Korea TelecomAS4766Korea Telecom
Managed DNS
Self-hosted / other
Email
None
IPv6 (AAAA)
Not enabled
CAA pinning
None

Sits alongside 4,999+ other sites on Korea Telecom. Stable here since we started watching (Aug 15, 2026).

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

DNS Records for kosca21.or.kr

HostnameTypeTTLPriorityContent
kosca21.or.krSOA3600kosca021 hostmaster 8 900 600 86400 3600
kosca21.or.krTXT0v=spf1 ip4:211.220.194.144 -all
kosca21.or.krNS0kosca021
kosca21.or.krA0211.220.194.144
www.kosca21.or.krA0211.220.194.144

What's up with DNS →

Our daily roundup of the most interesting DNS changes across the web — hosting and CDN migrations, network moves, and security-config shifts.

Ask about kosca21.or.kr

Beta

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

Get alerted the moment kosca21.or.kr's DNS changes

This page is today's snapshot. Turn on monitoring and we'll watch kosca21.or.kr 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.

Monitor DNS free

Free for your first domain: uptime, DNS, and certificate together. No credit card.

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