DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
dtv21.co.kr runs on Vultr.
- Hosting network
- VultrAS20473Vultr
- Managed DNS
- Self-hosted / other
- None
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- None
Sits alongside 4,999+ other sites on Vultr. Stable here since we started watching (Aug 15, 2026).
The apex and www are the same hosting — the apex via A records, www via a CNAME to dtv21.co.kr.
DNS Records for dtv21.co.kr
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| dtv21.co.kr | A | 0 | 64.176.228.174 | |
| dtv21.co.kr | NS | 0 | ns4.hosting.co.kr | |
| dtv21.co.kr | NS | 0 | ns3.hosting.co.kr | |
| dtv21.co.kr | NS | 0 | ns2.hosting.co.kr | |
| dtv21.co.kr | NS | 0 | ns1.hosting.co.kr | |
| dtv21.co.kr | SOA | 180 | ns1.hosting.co.kr admin.dtv21.co.kr 7 21600 1800 1209600 180 | |
| www.dtv21.co.kr | NS | 0 | ns2.hosting.co.kr | |
| www.dtv21.co.kr | NS | 0 | ns4.hosting.co.kr | |
| www.dtv21.co.kr | NS | 0 | ns1.hosting.co.kr | |
| www.dtv21.co.kr | NS | 0 | ns3.hosting.co.kr | |
| www.dtv21.co.kr | SOA | 180 | ns1.hosting.co.kr admin.dtv21.co.kr 7 21600 1800 1209600 180 | |
| www.dtv21.co.kr | CNAME | 0 | dtv21.co.kr | |
| www.dtv21.co.kr | A | 0 | 64.176.228.174 |
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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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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