DNS Record Lookup

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

Hosting & Network

aone4u.co.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 (Jul 23, 2026).

The apex and www are the same hosting — the apex via A records, www via a CNAME to aone4u.co.kr.

DNS Records for aone4u.co.kr

HostnameTypeTTLPriorityContent
aone4u.co.krNS0ns2.cafe24.co.kr
aone4u.co.krNS0ns1.cafe24.co.kr
aone4u.co.krNS0ns2.cafe24.com
aone4u.co.krNS0ns1.cafe24.com
aone4u.co.krA0203.245.12.112
aone4u.co.krA0183.111.139.237
aone4u.co.krA0203.245.12.110
aone4u.co.krA0203.245.12.109
aone4u.co.krSOA43200aone4u.co.kr postmaster.aone4u.co.kr 20140416 10800 3600 3600000 43200
www.aone4u.co.krCNAME0aone4u.co.kr
www.aone4u.co.krNS0ns2.cafe24.co.kr
www.aone4u.co.krNS0ns1.cafe24.com
www.aone4u.co.krNS0ns1.cafe24.co.kr
www.aone4u.co.krNS0ns2.cafe24.com
www.aone4u.co.krSOA43200aone4u.co.kr postmaster.aone4u.co.kr 20140416 10800 3600 3600000 43200
www.aone4u.co.krA0183.111.139.237
www.aone4u.co.krA0203.245.12.109
www.aone4u.co.krA0203.245.12.110
www.aone4u.co.krA0203.245.12.112

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 aone4u.co.kr

Beta

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

Get alerted the moment aone4u.co.kr's DNS changes

This page is today's snapshot. Turn on monitoring and we'll watch aone4u.co.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