`sysinfra.co.kr`

DNSSEC	⚠️ Not signed
A	211.233.13.59^{🇰🇷 DACOM-NET211.233.0.0/18 contact noc@bora.net if necessary contact ysjeon7@bora.net if necessary}
		PTR	`sysinfra.co.kr`
		PTR	`mail.sysinfra.co.kr`
NS	`ns1.uhost.co.kr` ⭐ ⚠️ Not in zone NS records
		A	202.31.187.220^{🇰🇷 KT-NET202.31.187.0/24 I Names}
NS	`ns2.uhost.co.kr` ⚠️ Not in zone NS records
		A	219.251.156.14^{🇰🇷 GDNSKR-KR219.251.156.0/24 AS23600}
MX	`mail.sysinfra.co.kr` ⭐
		A	211.233.13.59^{🇰🇷 DACOM-NET211.233.0.0/18 contact noc@bora.net if necessary contact ysjeon7@bora.net if necessary}
			PTR	`sysinfra.co.kr`
			PTR	`mail.sysinfra.co.kr`
TXT	`v=spf1 ip4:211.233.13.59 ip4:211.47.68.82 ip4:211.47.66.41 ~all`
SOA	`ns1.uhost.co.kr`ts@inames.co.kr 2023-08-14 #11

`co.kr`

	DNSSEC	⚠️ Not signed
	NS	`g.dns.kr` ⭐ ⚠️ Not in parent delegation
	NS	`b.dns.kr` ⚠️ Not in parent delegation
	NS	`c.dns.kr` ⚠️ Not in parent delegation
	NS	`d.dns.kr` ⚠️ Not in parent delegation
	NS	`e.dns.kr` ⚠️ Not in parent delegation
	NS	`f.dns.kr` ⚠️ Not in parent delegation
	SOA	`g.dns.kr`domain-manager@nic.or.kr serial=2604131066

WOT: UNKNOWN (62/100)

PTR for

59.13.233.211.in-addr.arpa

Subdomains

mail.sysinfra.co.kr

Same first word

sysinfra.eu

sysinfra.fr

sysinfra.co.kr

sysinfra.com

Similar names

DNS History

6 records (4 active, 2 former)

○NSns1.epa.co.kr2017-08-05 → 2017-08-05 · 3 obs

● 2017-08-05 13:08:32
○ 2026-03-31 01:34:54
○ 2026-04-13 19:24:22

●NSns1.uhost.co.kr2026-03-31 → 2026-04-13 · 3 obs

○ 2017-08-05 13:08:32
● 2026-03-31 01:34:54
● 2026-04-13 19:24:22

○NSns2.epa.co.kr2017-08-05 → 2017-08-05 · 3 obs

● 2017-08-05 13:08:32
○ 2026-03-31 01:34:54
○ 2026-04-13 19:24:22

●NSns2.uhost.co.kr2026-03-31 → 2026-04-13 · 3 obs

○ 2017-08-05 13:08:32
● 2026-03-31 01:34:54
● 2026-04-13 19:24:22

●MXmail.sysinfra.co.kr2017-08-05 → 2026-04-13 · 2 obs

● 2017-08-05 13:08:32
● 2026-04-13 19:24:22

●A211.233.13.592017-08-05 → 2026-04-13 · 2 obs

● 2017-08-05 13:08:32
● 2026-04-13 19:24:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
kr	c.dns.kr, e.dns.kr, d.dns.kr, g.dns.kr...	-
sysinfra.co.kr	ns2.uhost.co.kr, ns1.uhost.co.kr	2 records

✅ Authoritative Response

Server:202.31.187.220

NS records: ns2.uhost.co.kr, ns1.uhost.co.kr

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 3998ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`211.233.13.59`
MX	1	`mail.sysinfra.co.kr (pri: 0)`
TXT	1	`v=spf1 ip4:211.233.13.59 ip4:211.47.68.8`
SOA	1	`ns1.uhost.co.kr ts.inames.co.kr`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns2.uhost.co.kr, ns1.uhost.co.kr)

Analysis

Hierarchy

sysinfra.co.kr is the parent of mail.sysinfra.co.kr.

IP Addresses

sysinfra.co.kr points to IP number 211.233.13.59.

Other host names, for instance, mail.sysinfra.co.kr share IP numbers with sysinfra.co.kr.

Name Servers

sysinfra.co.kr is delegated to two name servers: ns1.uhost.co.kr and ns2.uhost.co.kr.

sysinfra.co.kr uses the same name server setup as other domains such as texlife.net, ysq.co.kr, eesk.or.kr, descente.co.kr and heidelberg.co.kr.

sysinfra.co.kr shares name servers with other domains at least partially, for example ubierp.com, gasa.go.kr, eternalcityworld.com, mmca.go.kr and hanjucorp.co.kr.

Host names with one IP number:

ns1.uhost.co.kr points to: 202.31.187.220.

ns2.uhost.co.kr points to: 219.251.156.14.

Mail Servers

sysinfra.co.kr is handled by a single mail server, mail.sysinfra.co.kr.

mail.sysinfra.co.kr points to a single IP: 211.233.13.59.

sysinfra.co.kr - robtex.com

sysinfra.co.kr

co.kr