serimtech.com - dns.ninja

`serimtech.com`

DNSSEC	⚠️ Not signed
A	211.233.5.152^{🇰🇷 DACOM-NET211.233.0.0/18 contact noc@bora.net if necessary contact ysjeon7@bora.net if necessary}
		PTR	`smtp.thaiair.co.kr`
NS	`ns.4989g.com` ⭐
		A	211.233.5.151^{🇰🇷 DACOM-NET211.233.0.0/18 contact noc@bora.net if necessary contact ysjeon7@bora.net if necessary}
NS	`ns2.darumsoft.com` ⚠️ Not in zone NS records
		A	211.233.5.158^{🇰🇷 DACOM-NET211.233.0.0/18 contact noc@bora.net if necessary contact ysjeon7@bora.net if necessary}
MX	`securemx01.mailplug.com` ⭐
		A	121.156.118.230^{🇰🇷 KT-NET121.152.0.0/13}
			PTR	`securemx01.mailplug.com`
		A	121.156.118.237^{🇰🇷 KT-NET121.152.0.0/13}
			PTR	`securemx01.mailplug.com`
		A	121.156.118.242^{🇰🇷 KT-NET121.152.0.0/13}
			PTR	`securemx01.mailplug.com`
MX	`securemx02.mailplug.com`⁽²⁰⁾
		A	223.26.214.11^{🇰🇷 HYOSUNGITX-AS-KR223.26.192.0/18 PACNET (proxy-registered route object)}
			PTR	`securemx02.mailplug.com`
		A	223.26.214.12^{🇰🇷 HYOSUNGITX-AS-KR223.26.192.0/18 PACNET (proxy-registered route object)}
			PTR	`securemx02.mailplug.com`
TXT	`v=spf1 mx include:mailplug.com ~all`
SOA	`ns.4989g.com`root@ns.4989g.com 2026-03-08 #1

`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=1785064032

Same first word

serimtech.com

Similar names

DNS History

7 records (5 active, 2 former)

●NSns.4989g.com2015-05-14 → 2026-07-26 · 2 obs

● 2015-05-14 05:55:50
● 2026-07-26 11:24:16

●NSns2.darumsoft.com2026-04-29 → 2026-07-26 · 3 obs

○ 2015-05-14 05:55:50
● 2026-04-29 01:39:16
● 2026-07-26 11:24:16

○MXm98.mailplug.co.kr2015-05-14 → 2017-06-21 · 4 obs

● 2015-05-14 05:55:50
● 2017-06-21 02:00:38
○ 2026-04-29 01:39:16
○ 2026-07-26 11:24:16

●MXsecuremx01.mailplug.com2026-04-29 → 2026-07-26 · 3 obs

○ 2017-06-21 02:00:38
● 2026-04-29 01:39:16
● 2026-07-26 11:24:16

●MXsecuremx02.mailplug.com2026-04-29 → 2026-07-26 · 3 obs

○ 2017-06-21 02:00:38
● 2026-04-29 01:39:16
● 2026-07-26 11:24:16

○A211.233.5.1512015-05-14 → 2017-06-21 · 4 obs

● 2015-05-14 05:55:50
● 2017-06-21 02:00:38
○ 2026-04-29 01:39:16
○ 2026-07-26 11:24:16

●A211.233.5.1522026-04-29 → 2026-07-26 · 3 obs

○ 2017-06-21 02:00:38
● 2026-04-29 01:39:16
● 2026-07-26 11:24:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
serimtech.com	ns.4989g.com, ns2.darumsoft.com	2 records

✅ Authoritative Response

Server:211.233.5.158

NS records: ns.4989g.com, ns2.darumsoft.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for serimtech.com (unsigned zone)

⏱️ Timing

Total: 473ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`211.233.5.152`
NS	1	`ns.4989g.com`
MX	2	`securemx02.mailplug.com (pri: 20), securemx01.mailplug.com (pri: 10)`
TXT	1	`v=spf1 mx include:mailplug.com ~all`
SOA	1	`ns.4989g.com root.ns.4989g.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns.4989g.com, ns2.darumsoft.com)

Analysis

IP Addresses

serimtech.com resolves to just one IP address, 211.233.5.152.

serimtech.com shares its IP numbers with other host names like darumi.co.kr, medihoon.com and incheonkiumi.com.

Name Servers

Two name servers handle the delegation for serimtech.com: ns.4989g.com and ns2.darumsoft.com.

serimtech.com shares its NS records with other domains, for example darumi.co.kr, medihoon.com, easytoto.org and two others.

serimtech.com shares at least some of its name servers with other domains, such as darumsoft.com and dasansoft.com.

These name servers are frequently paired with the name servers ns.nskorea.com and ns2.wowkorea.net.

ns.4989g.com and ns2.darumsoft.com each resolve to one IP number: ns.4989g.com points to 211.233.5.151 and ns2.darumsoft.com points to 211.233.5.158.

Mail Servers

serimtech.com is served by two mail servers, securemx01.mailplug.com and securemx02.mailplug.com.

Among the domains sharing a mail server setup with serimtech.com are bmskorea.co.kr, mb183.mailplug.co.kr, widenet.co.kr and two others.

There is at least a partial MX overlap between serimtech.com and other domains, including upskin.co.kr, apris.asia, tegoscience.com and two others.

Hostnames that map to three IP numbers:

The hostname securemx01.mailplug.com points to 121.156.118.230, 121.156.118.237 and 121.156.118.242.

Host names that have two IP addresses:

securemx02.mailplug.com resolves to two addresses: 223.26.214.11 and 223.26.214.12.