`opencom.com`

DNSSEC	⚠️ Not signed
A	121.78.91.10^{🇰🇷 KINXIDC-AS-KR121.78.80.0/20 Korea Internet Neutral eXchange}
		PTR	`serverb10.opencom.com`
NS	`opencom.com` ⭐
		A	121.78.91.10^{🇰🇷 KINXIDC-AS-KR121.78.80.0/20 Korea Internet Neutral eXchange}
			PTR	`serverb10.opencom.com`
NS	`ns.opengogo.com`
		A	121.78.91.66^{🇰🇷 KINXIDC-AS-KR121.78.80.0/20 Korea Internet Neutral eXchange}
			PTR	`serverb66.opencom.com`
NS	`ns.openhaja.com`
		A	121.78.91.2^{🇰🇷 KINXIDC-AS-KR121.78.80.0/20 Korea Internet Neutral eXchange}
			PTR	`serverb2.opencom.com`
NS	`ns.vt.opencom.com` ⚠️ Not in parent delegation
		A	192.168.0.201
NS	`ns1.backoffice.opencom.com` ⚠️ Not in parent delegation
		A	121.78.91.2^{🇰🇷 KINXIDC-AS-KR121.78.80.0/20 Korea Internet Neutral eXchange}
			PTR	`serverb2.opencom.com`
NS	`ns1.mail148.opencom.com` ⚠️ Not in parent delegation
NS	`ns1.mail28.opencom.com` ⚠️ Not in parent delegation
		A	121.78.91.2^{🇰🇷 KINXIDC-AS-KR121.78.80.0/20 Korea Internet Neutral eXchange}
			PTR	`serverb2.opencom.com`
NS	`ns1.pdns.opencom.com` ⚠️ Not in parent delegation
		A	121.78.91.50^{🇰🇷 KINXIDC-AS-KR121.78.80.0/20 Korea Internet Neutral eXchange}
			PTR	`serverb50.opencom.com`
NS	`ns1.sm.opencom.com` ⚠️ Not in parent delegation
NS	`ns2.backoffice.opencom.com` ⚠️ Not in parent delegation
		A	58.229.223.164^{🇰🇷 SKB-NET58.224.0.0/13 SKB summary}
NS	`ns2.mail148.opencom.com` ⚠️ Not in parent delegation
NS	`ns2.mail28.opencom.com` ⚠️ Not in parent delegation
		A	58.229.223.164^{🇰🇷 SKB-NET58.224.0.0/13 SKB summary}
NS	`ns2.pdns.opencom.com` ⚠️ Not in parent delegation
		A	121.78.91.50^{🇰🇷 KINXIDC-AS-KR121.78.80.0/20 Korea Internet Neutral eXchange}
			PTR	`serverb50.opencom.com`
NS	`ns2.sm.opencom.com` ⚠️ Not in parent delegation
MX	`aspmx.daum.net` ⭐
		A	121.53.85.23^{🇰🇷 KAKAO-AY1121.53.80.0/21 Kakao}
MX	`alt.aspmx.daum.net`⁽²⁰⁾
		A	121.53.85.23^{🇰🇷 KAKAO-AY1121.53.80.0/21 Kakao}
TXT	`_globalsign-domain-verification=APvkzkltqhLP-4ICCw5Ku8SaWDTWAVMoYyB6jfv_DK`
TXT	`google-site-verification=WgPMZuHX7V5BN_CEpall1uoT3uoz66lpfd7tmNCQ9kI`
TXT	`v=spf1 ip4:121.78.88.26 ip4:121.78.189.241 ip4:121.78.91.10 ip4:121.78.91.24...`
SOA	`opencom.com`webmaster@opencom.com 2003-03-21 #92

`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=1783081266

NS for

opencom.com

Subdomains

serverb2.opencom.com

servera124.opencom.com

servera14.opencom.com

sm.opencom.com

servera217.opencom.com

servera233.opencom.com

servera55.opencom.com

servera148.opencom.com

servera18.opencom.com

servera105.opencom.com

servera3.opencom.com

serverb39.opencom.com

servera10.opencom.com

servera77.opencom.com

servera97.opencom.com

serverb251.opencom.com

servera119.opencom.com

servera37.opencom.com

www.opencom.com

servera30.opencom.com

serverb139.opencom.com

servera140.opencom.com

servera109.opencom.com

servera54.opencom.com

serverb33.opencom.com

serverb132.opencom.com

serverb26.opencom.com

servera67.opencom.com

servera92.opencom.com

servera245.opencom.com

serverb101.opencom.com

servera39.opencom.com

servera223.opencom.com

serverb27.opencom.com

servera72.opencom.com

servera204.opencom.com

serverb11.opencom.com

serverb113.opencom.com

serverb35.opencom.com

serverb31.opencom.com

servera2.opencom.com

serverb131.opencom.com

servera33.opencom.com

servera41.opencom.com

serverb135.opencom.com

servera100.opencom.com

servera74.opencom.com

servera8.opencom.com

servera95.opencom.com

serverb247.opencom.com

servera155.opencom.com

serverb40.opencom.com

servera31.opencom.com

servera80.opencom.com

servera43.opencom.com

servera211.opencom.com

serverb14.opencom.com

servera96.opencom.com

serverb3.opencom.com

serverb133.opencom.com

servera51.opencom.com

servera165.opencom.com

servera138.opencom.com

servera101.opencom.com

serverb241.opencom.com

servera195.opencom.com

serverb32.opencom.com

servera60.opencom.com

servera84.opencom.com

servera23.opencom.com

servera185.opencom.com

servera38.opencom.com

mail148.opencom.com

webmail.opencom.com

servera102.opencom.com

servera103.opencom.com

servera78.opencom.com

serverb38.opencom.com

serverb105.opencom.com

servera118.opencom.com

servera208.opencom.com

servera44.opencom.com

servera227.opencom.com

servera144.opencom.com

servera130.opencom.com

servera167.opencom.com

servera12.opencom.com

serverb210.opencom.com

servera53.opencom.com

servera94.opencom.com

serverb64.opencom.com

serverb66.opencom.com

serverb30.opencom.com

servera246.opencom.com

servera201.opencom.com

serverb36.opencom.com

servera17.opencom.com

servera160.opencom.com

servera26.opencom.com

servera210.opencom.com

servera87.opencom.com

servera114.opencom.com

servera133.opencom.com

serverb52.opencom.com

servera206.opencom.com

servera131.opencom.com

servera56.opencom.com

servera199.opencom.com

servera22.opencom.com

serverb16.opencom.com

servera16.opencom.com

servera228.opencom.com

servera221.opencom.com

servera143.opencom.com

servera122.opencom.com

servera20.opencom.com

serverb13.opencom.com

servera7.opencom.com

servera79.opencom.com

serverb114.opencom.com

serverb50.opencom.com

Same first word

opencom.pl

opencom.org

opencom.de

opencom.nl

opencom.hu

opencom.co.kr

opencom.com

opencom.no

opencom.kr

opencom.xyz

opencom.email

opencom.me

opencom.cn

opencom.be

opencom.ch

opencom.eu

opencom.us

opencom.net

opencom.ru

opencom.fr

Similar names

monocep.com

compeon.at

comopen.com

compone.cl

compone.org

compeon.info

compeon.biz

compeon.se

nemopoc.com

compone.se

pocemon.com

coopmen.com

compone.net

compeon.be

neocomp.ru

copemon.com

compeon.awsapps.com

compeon.com

compeon.ch

compone.ru

compeon.net

compeon.de

compeon.fr

compeno.com

onecomp.com

compeon.nl

opencmo.com

onecomp.net

compeon.pt

neocomp.cl

compeon.us

comonpe.com

compeon.es

neocomp.de

empocon.com

compeon.eu

neocomp.net

neocomp.com

compeon.org

DNS History

22 records (17 active, 5 former)

●NSns.opengogo.com2015-08-26 → 2026-07-03 · 2 obs

● 2015-08-26 18:13:38
● 2026-07-03 12:51:24

●NSns.openhaja.com2015-08-26 → 2026-07-03 · 2 obs

● 2015-08-26 18:13:38
● 2026-07-03 12:51:24

●NSns.vt.opencom.com2015-08-26 → 2026-07-03 · 2 obs

● 2015-08-26 18:13:38
● 2026-07-03 12:51:24

●NSns1.backoffice.opencom.com2015-08-26 → 2026-07-03 · 2 obs

● 2015-08-26 18:13:38
● 2026-07-03 12:51:24

●NSns1.mail148.opencom.com2016-06-26 → 2026-07-03 · 3 obs

○ 2016-04-26 07:26:08
● 2016-06-26 02:16:08
● 2026-07-03 12:51:24

●NSns1.mail28.opencom.com2016-06-26 → 2026-07-03 · 3 obs

○ 2016-04-26 07:26:08
● 2016-06-26 02:16:08
● 2026-07-03 12:51:24

●NSns1.pdns.opencom.com2016-04-26 → 2026-07-03 · 3 obs

○ 2015-08-26 18:13:38
● 2016-04-26 07:26:08
● 2026-07-03 12:51:24

●NSns1.sm.opencom.com2015-08-26 → 2026-07-03 · 2 obs

● 2015-08-26 18:13:38
● 2026-07-03 12:51:24

●NSns2.backoffice.opencom.com2015-08-26 → 2026-07-03 · 2 obs

● 2015-08-26 18:13:38
● 2026-07-03 12:51:24

●NSns2.mail148.opencom.com2016-06-26 → 2026-07-03 · 3 obs

○ 2016-04-26 07:26:08
● 2016-06-26 02:16:08
● 2026-07-03 12:51:24

●NSns2.mail28.opencom.com2016-06-26 → 2026-07-03 · 3 obs

○ 2016-04-26 07:26:08
● 2016-06-26 02:16:08
● 2026-07-03 12:51:24

●NSns2.pdns.opencom.com2016-04-26 → 2026-07-03 · 3 obs

○ 2015-08-26 18:13:38
● 2016-04-26 07:26:08
● 2026-07-03 12:51:24

●NSns2.sm.opencom.com2015-08-26 → 2026-07-03 · 2 obs

● 2015-08-26 18:13:38
● 2026-07-03 12:51:24

●NSopencom.com2015-08-26 → 2026-07-03 · 2 obs

● 2015-08-26 18:13:38
● 2026-07-03 12:51:24

●MXalt.aspmx.daum.net2026-02-14 → 2026-07-03 · 6 obs

○ 2018-12-10 15:42:00
● 2026-02-14 16:30:42
● 2026-05-15 09:29:40
○ 2026-05-15 10:05:08
● 2026-05-15 13:17:24
● 2026-07-03 12:51:24

●MXaspmx.daum.net2026-02-14 → 2026-07-03 · 6 obs

○ 2018-12-10 15:42:00
● 2026-02-14 16:30:42
● 2026-05-15 09:29:40
○ 2026-05-15 10:05:08
● 2026-05-15 13:17:24
● 2026-07-03 12:51:24

○MXdmx-1.naver.com2015-08-26 → 2016-06-05 · 4 obs

● 2015-08-26 18:13:38
● 2016-06-05 05:00:24
○ 2016-06-26 02:16:08
○ 2026-07-03 12:51:24

○MXdmx-2.naver.com2015-08-26 → 2016-06-05 · 4 obs

● 2015-08-26 18:13:38
● 2016-06-05 05:00:24
○ 2016-06-26 02:16:08
○ 2026-07-03 12:51:24

○MXkr1-aspmx1.worksmobile.com2016-06-26 → 2017-03-18 · 5 obs

○ 2016-06-05 05:00:24
● 2016-06-26 02:16:08
● 2017-03-18 07:05:16
○ 2018-12-10 15:42:00
○ 2026-07-03 12:51:24

○MXkr1-aspmx2.worksmobile.com2016-06-26 → 2018-12-10 · 5 obs

○ 2016-06-05 05:00:24
● 2016-06-26 02:16:08
● 2018-12-10 15:42:00
○ 2026-02-14 16:30:42
○ 2026-07-03 12:51:24

○MXwebmail.opencom.com2018-12-10 → 2018-12-10 · 4 obs

○ 2017-03-18 07:05:16
● 2018-12-10 15:42:00
○ 2026-02-14 16:30:42
○ 2026-07-03 12:51:24

●A121.78.91.102015-08-26 → 2026-07-03 · 2 obs

● 2015-08-26 18:13:38
● 2026-07-03 12:51:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, m.gtld-servers.net, h.gtld-servers.net, i.gtld-servers.net...	-
opencom.com	ns.openhaja.com, ns.opengogo.com	2 records

✅ Authoritative Response

Server:121.78.91.2

NS records: ns.openhaja.com, ns.opengogo.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for opencom.com (unsigned zone)

⏱️ Timing

Total: 671ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`121.78.91.10`
NS	13	`ns2.backoffice.opencom.com, ns2.pdns.opencom.com...`
MX	2	`ASPMX.daum.net (pri: 10), ALT.ASPMX.daum.net (pri: 20)`
TXT	3	`_globalsign-domain-verification=APvkzklt, google-site-verification=WgPMZuHX7V5BN_C...`
SOA	1	`opencom.com webmaster.opencom.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns.openhaja.com, ns.opengogo.com)

Analysis

Hierarchy

serverb2.opencom.com, servera124.opencom.com, servera14.opencom.com, sm.opencom.com, servera217.opencom.com and hundreds of other host names are subdomains of opencom.com.

Name Server Role

opencom.com acts as a name server for opencom.com, meaning it is self-referentially delegated.

opencom.com is commonly paired with ns.opengogo.com, ns.openhaja.com and ns1.backoffice.opencom.com to act as name servers.

IP Addresses

opencom.com resolves to one IP address: 121.78.91.10.

www.opencom.com, www.opengogo.com, opencom.kr and two other host names share IP numbers with opencom.com.

Name Servers

opencom.com carries NS delegation across 14 name servers — opencom.com, ns.opengogo.com, ns.openhaja.com and 11 other.

There is at least partial name server overlap between opencom.com and other domains — edenwon.or.kr, tamiya.co.kr, 601bisang.com and two more among them.

These name servers regularly appear alongside ns2.backoffice.opencom.com, ns1.mail148.opencom.com, ns2.mail148.opencom.com and 7 other name servers in NS record sets.

Hosts with just one IP address:

The hostname opencom.com resolves to 121.78.91.10.

The hostname ns.opengogo.com resolves to 121.78.91.66.

The hostname ns.openhaja.com resolves to 121.78.91.2.

The hostname ns1.backoffice.opencom.com resolves to 121.78.91.2.

The hostname ns2.backoffice.opencom.com resolves to 58.229.223.164.

The hostname ns1.mail28.opencom.com resolves to 121.78.91.2.

The hostname ns2.mail28.opencom.com resolves to 58.229.223.164.

The hostname ns1.pdns.opencom.com resolves to 121.78.91.50.

The hostname ns2.pdns.opencom.com resolves to 121.78.91.50.

The hostname ns.vt.opencom.com resolves to 192.168.0.201.

The host names ns.openhaja.com, ns1.backoffice.opencom.com and ns1.mail28.opencom.com each resolve to 121.78.91.2.

ns2.backoffice.opencom.com along with ns2.mail28.opencom.com each resolve to 58.229.223.164 IP addresses.

ns1.pdns.opencom.com along with ns2.pdns.opencom.com each resolve to 121.78.91.50 IP addresses.

Mail Servers

Mail for opencom.com is handled by two mail servers — aspmx.daum.net and alt.aspmx.daum.net.

opencom.com uses an identical mail server configuration to several other domains — among them art4e.com, yeopbox.com, casenews.co.kr and two more.

opencom.com has at least partial mail server overlap with other domains such as mediasalt.co.kr, aumuu.kr, misslauren.co.kr and two more.

aspmx.daum.net directs to 121.53.85.23, as does alt.aspmx.daum.net — both hostnames resolve to that one IP address.

aspmx.daum.net along with alt.aspmx.daum.net each resolve to 121.53.85.23 IP addresses.

opencom.com - robtex.com

opencom.com

com

NS for

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

Name Server Role

IP Addresses

Name Servers

Mail Servers

`opencom.com`

`com`