worldtube.co.kr - robtex.com

worldtube.co.kr

DNSSEC⚠️ Not signed
A183.111.161.193🇰🇷 KT-NET183.104.0.0/13 KORNET KOREA TELECOM
NSworldtube.co.kr ⭐
A183.111.161.193🇰🇷 KT-NET183.104.0.0/13 KORNET KOREA TELECOM
NSns.coreadesign.co.kr ⚠️ Not in zone NS records
A218.145.65.143🇰🇷 KT-NET218.144.0.0/13 KORnet Powered BY Korea Telecom
NSns.worldtube.co.kr ⚠️ Not in parent delegation
A218.145.65.143🇰🇷 KT-NET218.144.0.0/13 KORnet Powered BY Korea Telecom
NSns1.coreadesign.co.kr ⚠️ Not in zone NS records
A116.126.143.226🇰🇷 SKB-NET116.126.0.0/16 SK Broadband
NSns1.worldtube.co.kr ⚠️ Not in parent delegation
A116.126.143.226🇰🇷 SKB-NET116.126.0.0/16 SK Broadband
NSns2.coreadesign.co.kr ⚠️ Not in zone NS records
A218.145.65.144🇰🇷 KT-NET218.144.0.0/13 KORnet Powered BY Korea Telecom
NSns2.worldtube.co.kr ⚠️ Not in parent delegation
A218.145.65.144🇰🇷 KT-NET218.144.0.0/13 KORnet Powered BY Korea Telecom
NSns3.coreadesign.co.kr ⚠️ Not in zone NS records
A116.126.143.225🇰🇷 SKB-NET116.126.0.0/16 SK Broadband
NSns3.worldtube.co.kr ⚠️ Not in parent delegation
A116.126.143.225🇰🇷 SKB-NET116.126.0.0/16 SK Broadband
MXmail.worldtube.co.kr ⭐
A222.231.27.230🇰🇷 DACOM-NET222.231.0.0/18 contact noc@bora.net if necessary
PTRgroupware69.hanbiro.net
TXTv=spf1 ip4:222.231.27.230 ~all
SOAworldtube.co.krpostmaster@worldtube.co.kr serial=20211016

co.kr

DNSSEC⚠️ Not signed
NSg.dns.kr ⭐ ⚠️ Not in parent delegation
NSb.dns.kr ⚠️ Not in parent delegation
NSc.dns.kr ⚠️ Not in parent delegation
NSd.dns.kr ⚠️ Not in parent delegation
NSe.dns.kr ⚠️ Not in parent delegation
NSf.dns.kr ⚠️ Not in parent delegation
SOAg.dns.krdomain-manager@nic.or.kr serial=2608070705
WOT: UNKNOWN (62/100)

NS for

worldtube.co.kr

Subdomains

mail.worldtube.co.kr
ns3.worldtube.co.kr
ns1.worldtube.co.kr
ns2.worldtube.co.kr
ns.worldtube.co.kr

Same first word

worldtube.de
worldtube.co.kr
worldtube.com
worldtube.it

Similar names

ubetworld.com
tubeworld.com
tubeworld.ru
tubeworld.net
tubeworld.de

DNS History

14 records (11 active, 3 former)

20162017201820192020202120222023202420252026NSns.coreadesign.co.krns.worldtube.co.krns1.coreadesign.co.krns1.worldtube.co.krns2.coreadesign.co.krns2.worldtube.co.krns3.coreadesign.co.krns3.worldtube.co.krworldtube.co.krns1.uhost.co.krns2.uhost.co.krMXmail.worldtube.co.krA183.111.161.193121.176.16.165
●NSns.coreadesign.co.kr2026-03-29 → 2026-08-07 · 3 obs
○ 2017-06-26 03:05:10
● 2026-03-29 12:43:32
● 2026-08-07 04:55:50
●NSns.worldtube.co.kr2026-03-29 → 2026-08-07 · 3 obs
○ 2017-06-26 03:05:10
● 2026-03-29 12:43:32
● 2026-08-07 04:55:50
●NSns1.coreadesign.co.kr2026-03-29 → 2026-08-07 · 3 obs
○ 2017-06-26 03:05:10
● 2026-03-29 12:43:32
● 2026-08-07 04:55:50
○NSns1.uhost.co.kr2015-08-23 → 2017-06-26 · 4 obs
● 2015-08-23 00:46:30
● 2017-06-26 03:05:10
○ 2026-03-29 12:43:32
○ 2026-08-07 04:55:50
●NSns1.worldtube.co.kr2026-03-29 → 2026-08-07 · 3 obs
○ 2017-06-26 03:05:10
● 2026-03-29 12:43:32
● 2026-08-07 04:55:50
●NSns2.coreadesign.co.kr2026-03-29 → 2026-08-07 · 3 obs
○ 2017-06-26 03:05:10
● 2026-03-29 12:43:32
● 2026-08-07 04:55:50
○NSns2.uhost.co.kr2015-08-23 → 2017-06-26 · 4 obs
● 2015-08-23 00:46:30
● 2017-06-26 03:05:10
○ 2026-03-29 12:43:32
○ 2026-08-07 04:55:50
●NSns2.worldtube.co.kr2026-03-29 → 2026-08-07 · 3 obs
○ 2017-06-26 03:05:10
● 2026-03-29 12:43:32
● 2026-08-07 04:55:50
●NSns3.coreadesign.co.kr2026-03-29 → 2026-08-07 · 3 obs
○ 2017-06-26 03:05:10
● 2026-03-29 12:43:32
● 2026-08-07 04:55:50
●NSns3.worldtube.co.kr2026-03-29 → 2026-08-07 · 3 obs
○ 2017-06-26 03:05:10
● 2026-03-29 12:43:32
● 2026-08-07 04:55:50
●NSworldtube.co.kr2026-03-29 → 2026-08-07 · 3 obs
○ 2017-06-26 03:05:10
● 2026-03-29 12:43:32
● 2026-08-07 04:55:50
●MXmail.worldtube.co.kr2015-08-23 → 2026-08-07 · 2 obs
● 2015-08-23 00:46:30
● 2026-08-07 04:55:50
○A121.176.16.1652015-08-23 → 2017-06-26 · 4 obs
● 2015-08-23 00:46:30
● 2017-06-26 03:05:10
○ 2026-03-29 12:43:32
○ 2026-08-07 04:55:50
●A183.111.161.1932026-03-29 → 2026-08-07 · 3 obs
○ 2017-06-26 03:05:10
● 2026-03-29 12:43:32
● 2026-08-07 04:55:50

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
krc.dns.kr, e.dns.kr, d.dns.kr, g.dns.kr...-
worldtube.co.krns.coreadesign.co.kr, ns2.coreadesign.co.kr, ns1.coreadesign.co.kr, ns3.coreadesign.co.kr4 records

✅ Authoritative Response

Server:218.145.65.144

NS records: ns.coreadesign.co.kr, ns2.coreadesign.co.kr, ns1.coreadesign.co.kr, ns3.coreadesign.co.kr

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for worldtube.co.kr (unsigned zone)

⏱️ Timing

Total: 1027ms | Queries: -

📄 Records

TypeCountSample Data
A1183.111.161.193
NS4ns.worldtube.co.kr, ns1.worldtube.co.kr...
MX1mail.worldtube.co.kr (pri: 10)
TXT1v=spf1 ip4:222.231.27.230 ~all
SOA1worldtube.co.kr postmaster.worldtube.co.

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns3.coreadesign.co.kr, ns2.coreadesign.co.kr, ns1.coreadesign.co.kr...)

Analysis

Hierarchy

worldtube.co.kr has five child domains: mail.worldtube.co.kr, ns3.worldtube.co.kr, ns1.worldtube.co.kr, ns2.worldtube.co.kr and ns.worldtube.co.kr.

Name Server Role

worldtube.co.kr is listed as a name server for worldtube.co.kr — it is in-bailiwick, authoritative for its own domain.

It is common to see ns1.coreadesign.co.kr, ns2.coreadesign.co.kr and ns3.coreadesign.co.kr acting as name servers in combination with worldtube.co.kr.

IP Addresses

worldtube.co.kr has exactly one IP address — 183.111.161.193.

mdqim.com, shenvatec.com, mechasys.net plus two other host names have IP numbers in common with worldtube.co.kr.

Name Servers

worldtube.co.kr carries NS delegation across 9 name servers — worldtube.co.kr, ns1.coreadesign.co.kr, ns2.coreadesign.co.kr and 6 other.

There is at least partial name server overlap between worldtube.co.kr and other domains — mtechwin.co.kr, jinhaemarathon.co.kr, apho2026.kr and two more among them.

These name servers regularly appear alongside ns.coreadesign.co.kr, ns1.mtechwin.co.kr, ns2.mtechwin.co.kr and 7 other name servers in NS record sets.

Host names resolving to a single IP address:

worldtube.co.kr resolves to the IP address 183.111.161.193.

ns1.coreadesign.co.kr resolves to the IP address 116.126.143.226.

ns2.coreadesign.co.kr resolves to the IP address 218.145.65.144.

ns3.coreadesign.co.kr resolves to the IP address 116.126.143.225.

ns.coreadesign.co.kr resolves to the IP address 218.145.65.143.

ns1.worldtube.co.kr resolves to the IP address 116.126.143.226.

ns2.worldtube.co.kr resolves to the IP address 218.145.65.144.

ns3.worldtube.co.kr resolves to the IP address 116.126.143.225.

ns.worldtube.co.kr resolves to the IP address 218.145.65.143.

ns1.coreadesign.co.kr and ns1.worldtube.co.kr each have 116.126.143.226 IP addresses.

ns2.coreadesign.co.kr and ns2.worldtube.co.kr each have 218.145.65.144 IP addresses.

ns3.coreadesign.co.kr and ns3.worldtube.co.kr each have 116.126.143.225 IP addresses.

ns.coreadesign.co.kr and ns.worldtube.co.kr each have 218.145.65.143 IP addresses.

Mail Servers

worldtube.co.kr uses one mail server — mail.worldtube.co.kr.

mail.worldtube.co.kr resolves to 222.231.27.230 and no other IP number.