mail.coreadr.com - robtex.com

mail.coreadr.com

DNSSEC⚠️ Not signed
A221.139.49.6🇰🇷 SKB-NET221.138.0.0/15 SK Broadband

coreadr.com

DNSSEC⚠️ Not signed
A221.139.49.6🇰🇷 SKB-NET221.138.0.0/15 SK Broadband
NSns1.aramschool.co.kr ⭐
NSns1.ad-media.kr ⚠️ Not in zone NS records
NSns2.ad-media.kr ⚠️ Not in zone NS records
MXmail.coreadr.com ⭐
TXTv=spf1 include:_spf.aramschool.co.kr ~all
SOAns1.aramschool.co.krsupport@aramschool.co.kr 2024-09-24 #13

MX for

coreadr.com

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DNS History

1 record (1 active, 0 former)

A221.139.49.6
●A221.139.49.62026-02-27 → 2026-04-22 · 2 obs
● 2026-02-27 07:26:18
● 2026-04-22 17:12:36

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, h.gtld-servers.net, l.gtld-servers.net...-
coreadr.comns1.ad-media.kr, ns2.ad-media.kr-

✅ Authoritative Response

Server:221.139.49.17

NS records: ns1.ad-media.kr, ns2.ad-media.kr

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coreadr.com (unsigned zone)

⏱️ Timing

Total: 1549ms | Queries: -

📄 Records

TypeCountSample Data
A1221.139.49.6

Analysis

Mail Server Role

mail.coreadr.com functions as a mail server for coreadr.com.

IP Addresses

mail.coreadr.com points to IP number: 221.139.49.6.

Other host names such as mail.dmak.or.kr, ongladies.com, hiwind.kr, yeedam.com and mail.aceonpro.com share IPs with mail.coreadr.com.