edum.io - robtex.com

edum.io

DNSSEC⚠️ Not signed
A216.198.79.1🇺🇸 Amazon216.198.79.0/24 EC2 Prefix
NSns1.hosting.co.kr ⭐
A121.254.170.11🇰🇷 DACOM-NET121.254.128.0/17 contact noc@bora.net if necessary
NSns2.hosting.co.kr
A43.201.141.93🇰🇷 Amazon43.200.0.0/14 EC2 ICN Prefix
PTRec2-43-201-141-93.ap-northeast-2.compute.amazonaws.com
NSns3.hosting.co.kr
A121.254.170.12🇰🇷 DACOM-NET121.254.128.0/17 contact noc@bora.net if necessary
NSns4.hosting.co.kr
A43.201.141.93🇰🇷 Amazon43.200.0.0/14 EC2 ICN Prefix
PTRec2-43-201-141-93.ap-northeast-2.compute.amazonaws.com
MXkr1-aspmx1.worksmobile.com ⭐
A125.209.209.251🇰🇷 nhn-AS-KR125.209.208.0/22 NAVER business platform
PTRcrcvmail.worksmobile.com
MXkr1-aspmx2.worksmobile.com(20)
A125.209.209.251🇰🇷 nhn-AS-KR125.209.208.0/22 NAVER business platform
PTRcrcvmail.worksmobile.com
TXTv=spf1 include:amazonses.com ~all
SOAns1.hosting.co.kradmin@edum.io serial=56

io

DNSSEC🔒 Signed (DS record present)
NSa0.nic.io ⭐
NSa2.nic.io
NSb0.nic.io
NSc0.nic.io
SOAa0.nic.iohostmaster@donuts.email serial=1778431366

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DNS History

7 records (7 active, 0 former)

NSns1.hosting.co.krns2.hosting.co.krns3.hosting.co.krns4.hosting.co.krMXkr1-aspmx1.worksmobile.comkr1-aspmx2.worksmobile.comA216.198.79.1
●NSns1.hosting.co.kr2026-04-30 → 2026-05-10 · 2 obs
● 2026-04-30 11:31:20
● 2026-05-10 16:58:28
●NSns2.hosting.co.kr2026-04-30 → 2026-05-10 · 2 obs
● 2026-04-30 11:31:20
● 2026-05-10 16:58:28
●NSns3.hosting.co.kr2026-04-30 → 2026-05-10 · 2 obs
● 2026-04-30 11:31:20
● 2026-05-10 16:58:28
●NSns4.hosting.co.kr2026-04-30 → 2026-05-10 · 2 obs
● 2026-04-30 11:31:20
● 2026-05-10 16:58:28
●MXkr1-aspmx1.worksmobile.com2026-04-30 → 2026-05-10 · 2 obs
● 2026-04-30 11:31:20
● 2026-05-10 16:58:28
●MXkr1-aspmx2.worksmobile.com2026-04-30 → 2026-05-10 · 2 obs
● 2026-04-30 11:31:20
● 2026-05-10 16:58:28
●A216.198.79.12026-04-30 → 2026-05-10 · 2 obs
● 2026-04-30 11:31:20
● 2026-05-10 16:58:28

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
ioa0.nic.io, a2.nic.io, b0.nic.io, c0.nic.io-
edum.ions4.hosting.co.kr, ns3.hosting.co.kr, ns1.hosting.co.kr, ns2.hosting.co.kr-

✅ Authoritative Response

Server:43.201.141.93

NS records: ns4.hosting.co.kr, ns3.hosting.co.kr, ns1.hosting.co.kr, ns2.hosting.co.kr

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for edum.io (unsigned zone)

⏱️ Timing

Total: 513ms | Queries: -

📄 Records

TypeCountSample Data
A1216.198.79.1
NS4ns3.hosting.co.kr, ns2.hosting.co.kr...
MX2kr1-aspmx2.worksmobile.com (pri: 20), kr1-aspmx1.worksmobile.com (pri: 10)
TXT1v=spf1 include:amazonses.com ~all
SOA1ns1.hosting.co.kr admin.edum.io

Analysis

IP Addresses

edum.io maps to IP address 216.198.79.1.

Other host names, for instance 3f4ace09a6585bb8.vercel-dns-017.com, ombauche.com, lockeen.com, all-european-careers.com and bondi.co.za share IP numbers with edum.io.

Name Servers

edum.io is delegated to four name servers: ns1.hosting.co.kr, ns2.hosting.co.kr, ns3.hosting.co.kr and ns4.hosting.co.kr.

edum.io at least partially shares name servers with other domains such as dtv21.co.kr, jouni.co.kr, kobo.kr, kingdomfish.net and polinote.com.

these name servers are commonly used with the name servers dns1.maxion.co.kr.

Host names with a single IP

ns1.hosting.co.kr points to 121.254.170.11

ns2.hosting.co.kr points to 43.201.141.93

ns3.hosting.co.kr points to 121.254.170.12

ns4.hosting.co.kr points to 43.201.141.93

Host names pointing to 43.201.141.93: ns2.hosting.co.kr and ns4.hosting.co.kr

Mail Servers

Two mail servers handle edum.io: kr1-aspmx1.worksmobile.com and kr1-aspmx2.worksmobile.com.

edum.io shares the same mail server setup as other domains, including kscs.kr, webike.co.kr, jtlshop.com, neofoam.com and cosmobeautyseoul.com.

edum.io shares mail servers with other domains at least in part, for instance antonin.co.kr, comics-art.co.kr, mbcdrama.co.kr, dadamedia.net and diosting.com.

Hostnames with one IP number:

kr1-aspmx1.worksmobile.com points to 125.209.209.251

kr1-aspmx2.worksmobile.com points to 125.209.209.251

Hostnames pointing to 125.209.209.251: kr1-aspmx1.worksmobile.com, kr1-aspmx2.worksmobile.com