`sejongflex.com`

DNSSEC	⚠️ Not signed
A	203.245.44.83^{🇰🇷 KT-NET203.245.0.0/18 contact chejumen@hitel.net if necessary contact country1@hitel.net if necessary contact express@hitel.net if necessary contact ezmate@hitel.net if necessary contact han322@hitel.net if necessary}
NS	`sejongflex.com` ⭐
		A	203.245.44.83^{🇰🇷 KT-NET203.245.0.0/18 contact chejumen@hitel.net if necessary contact country1@hitel.net if necessary contact express@hitel.net if necessary contact ezmate@hitel.net if necessary contact han322@hitel.net if necessary}
NS	`ns1.cafe24.co.kr`
		A	112.175.246.232^{🇰🇷 KT-NET112.168.0.0/13}
			PTR	`gjit.kr`
			PTR	`snoweb.kr`
			PTR	`sinc2030.co.kr`
		A	112.175.246.233^{🇰🇷 KT-NET112.168.0.0/13}
		A	175.125.93.136^{🇰🇷 SKB-NET175.120.0.0/13 SKB summary}
		A	175.125.93.137^{🇰🇷 SKB-NET175.120.0.0/13 SKB summary}
NS	`ns1.cafe24.com`
		A	112.175.246.230^{🇰🇷 KT-NET112.168.0.0/13}
		A	112.175.246.231^{🇰🇷 KT-NET112.168.0.0/13}
		A	116.126.143.242^{🇰🇷 SKB-NET116.126.0.0/16 SK Broadband}
		A	175.125.93.134^{🇰🇷 SKB-NET175.120.0.0/13 SKB summary}
		A	175.125.93.135^{🇰🇷 SKB-NET175.120.0.0/13 SKB summary}
NS	`ns2.cafe24.co.kr`
		A	112.175.247.232^{🇰🇷 KT-NET112.168.0.0/13}
			PTR	`snoweb.kr`
			PTR	`sarchi.co.kr`
		A	112.175.247.233^{🇰🇷 KT-NET112.168.0.0/13}
		A	175.125.93.146^{🇰🇷 SKB-NET175.120.0.0/13 SKB summary}
		A	175.125.93.147^{🇰🇷 SKB-NET175.120.0.0/13 SKB summary}
NS	`ns2.cafe24.com`
		A	1.226.85.4^{🇰🇷 SKB-NET1.224.0.0/13 auto-generated route object for 1.224.0.0/13}
		A	1.234.0.4^{🇰🇷 SKB-NET1.232.0.0/13 auto-generated route object for 1.232.0.0/13}
		A	112.175.11.4^{🇰🇷 KT-NET112.168.0.0/13}
		A	112.175.12.4^{🇰🇷 KT-NET112.168.0.0/13}
MX	`kr1-aspmx1.worksmobile.com` ⭐
		A	125.209.209.251^{🇰🇷 nhn-AS-KR125.209.208.0/22 NAVER business platform}
			PTR	`crcvmail.worksmobile.com`
MX	`kr1-aspmx2.worksmobile.com`⁽²⁰⁾
		A	125.209.209.251^{🇰🇷 nhn-AS-KR125.209.208.0/22 NAVER business platform}
			PTR	`crcvmail.worksmobile.com`
TXT	`v=spf1 ip4:203.245.44.83 ~all`
SOA	`sejongflex.com`postmaster@sejongflex.com serial=20200612

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1778566581

NS for

sejongflex.com

Same first word

sejongflex.com

DNS History

12 records (8 active, 4 former)

●NSns1.cafe24.co.kr2026-02-23 → 2026-05-12 · 3 obs

○ 2017-04-21 06:45:36
● 2026-02-23 02:18:00
● 2026-05-12 06:17:50

●NSns1.cafe24.com2026-02-23 → 2026-05-12 · 3 obs

○ 2017-04-21 06:45:36
● 2026-02-23 02:18:00
● 2026-05-12 06:17:50

○NSns1.sejongflex.com2015-08-01 → 2017-04-21 · 4 obs

● 2015-08-01 02:36:06
● 2017-04-21 06:45:36
○ 2026-02-23 02:18:00
○ 2026-05-12 06:17:50

●NSns2.cafe24.co.kr2026-02-23 → 2026-05-12 · 3 obs

○ 2017-04-21 06:45:36
● 2026-02-23 02:18:00
● 2026-05-12 06:17:50

●NSns2.cafe24.com2026-02-23 → 2026-05-12 · 3 obs

○ 2017-04-21 06:45:36
● 2026-02-23 02:18:00
● 2026-05-12 06:17:50

●NSsejongflex.com2026-02-23 → 2026-05-12 · 3 obs

○ 2017-04-21 06:45:36
● 2026-02-23 02:18:00
● 2026-05-12 06:17:50

○MXaspmx1.naver.com2015-08-01 → 2017-04-21 · 4 obs

● 2015-08-01 02:36:06
● 2017-04-21 06:45:36
○ 2026-02-23 02:18:00
○ 2026-05-12 06:17:50

○MXaspmx2.naver.com2015-08-01 → 2017-04-21 · 4 obs

● 2015-08-01 02:36:06
● 2017-04-21 06:45:36
○ 2026-02-23 02:18:00
○ 2026-05-12 06:17:50

●MXkr1-aspmx1.worksmobile.com2026-02-23 → 2026-05-12 · 3 obs

○ 2017-04-21 06:45:36
● 2026-02-23 02:18:00
● 2026-05-12 06:17:50

●MXkr1-aspmx2.worksmobile.com2026-02-23 → 2026-05-12 · 3 obs

○ 2017-04-21 06:45:36
● 2026-02-23 02:18:00
● 2026-05-12 06:17:50

○A116.122.37.742015-08-01 → 2017-04-21 · 4 obs

● 2015-08-01 02:36:06
● 2017-04-21 06:45:36
○ 2026-02-23 02:18:00
○ 2026-05-12 06:17:50

●A203.245.44.832026-02-23 → 2026-05-12 · 3 obs

○ 2017-04-21 06:45:36
● 2026-02-23 02:18:00
● 2026-05-12 06:17:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
sejongflex.com	ns2.cafe24.com, ns1.cafe24.com, ns2.cafe24.co.kr, ns1.cafe24.co.kr	9 records

✅ Authoritative Response

Server:112.175.246.230

NS records: ns2.cafe24.com, ns1.cafe24.com, ns2.cafe24.co.kr, ns1.cafe24.co.kr

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sejongflex.com (unsigned zone)

⏱️ Timing

Total: 1246ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`203.245.44.83`
NS	4	`ns2.cafe24.com, ns1.cafe24.co.kr...`
MX	2	`kr1-aspmx1.worksmobile.com (pri: 10), kr1-aspmx2.worksmobile.com (pri: 20)`
TXT	1	`v=spf1 ip4:203.245.44.83 ~all`
SOA	1	`sejongflex.com postmaster.sejongflex.com`

📌 Glue Records Collected

Total: 9

Out-of-bailiwick: 9 (ns2.cafe24.com, ns2.cafe24.com, ns2.cafe24.com...)

Analysis

Name Server Role

sejongflex.com serves as a name server for sejongflex.com.

With sejongflex.com, ns1.cafe24.com, ns2.cafe24.com and ns1.cafe24.co.kr are commonly used as name servers.

IP Addresses

sejongflex.com points to an IP address: 203.245.44.83.

other host names include newisland.kr, kocla.or.kr, livingcare.co, erinter.com and kec.or.kr; they share IP numbers with sejongflex.com.

Name Servers

sejongflex.com is delegated to five name servers: sejongflex.com, ns1.cafe24.com, ns2.cafe24.com, ns1.cafe24.co.kr and ns2.cafe24.co.kr.

sejongflex.com at least partially shares name servers with other domains, for instance ripple.co.kr, suicide.or.kr, valvehwasung.com, drhauschka.kr and youngjaeomuk.com.

These name servers are commonly used with the name servers ns.cafe24.com, dns1.cafe24.com, dns1.cafe24.co.kr, dns2.cafe24.com, ns0.cafe24.com, dns2.cafe24.co.kr, ns1.cafe24dns.co.kr and ns3.cafe24dns.co.kr.

Host names with five IP numbers:

ns1.cafe24.com points to 112.175.246.230, 112.175.246.231, 116.126.143.242, 175.125.93.134 and 175.125.93.135.

Host names with four IP numbers:

ns2.cafe24.com points to 1.226.85.4, 1.234.0.4, 112.175.11.4 and 112.175.12.4; ns1.cafe24.co.kr points to 112.175.246.232, 112.175.246.233, 175.125.93.136 and 175.125.93.137; ns2.cafe24.co.kr points to 112.175.247.232, 112.175.247.233, 175.125.93.146 and 175.125.93.147.

Host names with one IP number:

sejongflex.com points to 203.245.44.83.

Mail Servers

sejongflex.com is handled by two mail servers: kr1-aspmx1.worksmobile.com and kr1-aspmx2.worksmobile.com.

sejongflex.com uses the same mail server setup as other domains, for instance 3dmeca.com, ssunap.com, bodram.com, arima.co.kr and greenone.co.kr.

sejongflex.com shares at least partially some mail servers with other domains, for instance virusbus.com, labelik.com, engliseed.com, jdskorea.com and mgad.kr.

Host names with a single IP

kr1-aspmx1.worksmobile.com points to 125.209.209.251

kr1-aspmx2.worksmobile.com points to 125.209.209.251

Host names that point to 125.209.209.251: kr1-aspmx1.worksmobile.com and kr1-aspmx2.worksmobile.com

sejongflex.com - robtex.com

sejongflex.com

com

NS for

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Name Server Role

IP Addresses

Name Servers

Mail Servers

`sejongflex.com`

`com`