`smarttechkorea.com`

DNSSEC	⚠️ Not signed
A	3.171.100.32^{🇺🇸 Amazon3.171.100.0/22}
		PTR	`server-3-171-100-32.iad12.r.cloudfront.net`
A	3.171.100.51^{🇺🇸 Amazon3.171.100.0/22}
A	3.171.100.64^{🇺🇸 Amazon3.171.100.0/22}
A	3.171.100.66^{🇺🇸 Amazon3.171.100.0/22}
NS	`ans1.hostcocoa.com` ⭐
		A	205.251.192.117^{🇺🇸 Amazon205.251.192.0/24 prefix}
			PTR	`ns-117.awsdns-14.com`
NS	`ans2.hostcocoa.com`
		A	205.251.195.46^{🇺🇸 Amazon205.251.195.0/24 prefix}
			PTR	`ns-814.awsdns-37.net`
NS	`ans3.hostcocoa.com`
		A	205.251.197.133^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1413.awsdns-48.org`
NS	`ans4.hostcocoa.com`
		A	205.251.198.221^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1757.awsdns-27.co.uk`
MX	`smarttechkorea-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:cc35::^{🇰🇷 Microsoft2a01:111:f000::/36}
			PTR	`mail-slxp216cu00200.inbound.protection.outlook.com`
		A	2a01:111:f403:cc35::1^{🇰🇷 Microsoft2a01:111:f000::/36}
			PTR	`mail-sevp216cu00101.inbound.protection.outlook.com`
		A	2a01:111:f403:cc35::2^{🇰🇷 Microsoft2a01:111:f000::/36}
			PTR	`mail-se2p216cu00602.inbound.protection.outlook.com`
		A	2a01:111:f403:cc37::^{🇰🇷 Microsoft2a01:111:f000::/36}
			PTR	`mail-puwp216cu00200.inbound.protection.outlook.com`
		A	52.101.153.0^{🇰🇷 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-slxp216cu00200.inbound.protection.outlook.com`
		A	52.101.153.1^{🇰🇷 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sevp216cu00101.inbound.protection.outlook.com`
		A	52.101.153.2^{🇰🇷 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-se2p216cu00602.inbound.protection.outlook.com`
		A	52.101.155.0^{🇰🇷 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-puwp216cu00200.inbound.protection.outlook.com`
TXT	`MS=ms92459094`
TXT	`google-site-verification=EBzsrL5ch41rOcIJMkJ8pmOojVXBal3qayZsITG6Ab0`
TXT	`v=spf1 include:_spfblocka.bizboxa.com ~all include:spf.protection.outlook.com...`
SOA	`ans1.hostcocoa.com`awsdns-hostmaster@amazon.com serial=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=1771291435

DNS History

17 records (9 active, 8 former)

●NSans1.hostcocoa.com2026-03-03 → 2026-03-03 · 2 obs

○ 2017-09-28 02:57:52
● 2026-03-03 20:57:02

●NSans2.hostcocoa.com2026-03-03 → 2026-03-03 · 2 obs

○ 2017-09-28 02:57:52
● 2026-03-03 20:57:02

●NSans3.hostcocoa.com2026-03-03 → 2026-03-03 · 2 obs

○ 2017-09-28 02:57:52
● 2026-03-03 20:57:02

●NSans4.hostcocoa.com2026-03-03 → 2026-03-03 · 2 obs

○ 2017-09-28 02:57:52
● 2026-03-03 20:57:02

○NSns1.cafe24.co.kr2017-09-28 → 2017-09-28 · 2 obs

● 2017-09-28 02:57:52
○ 2026-03-03 20:57:02

○NSns1.cafe24.com2017-09-28 → 2017-09-28 · 2 obs

● 2017-09-28 02:57:52
○ 2026-03-03 20:57:02

○NSns2.cafe24.co.kr2017-09-28 → 2017-09-28 · 2 obs

● 2017-09-28 02:57:52
○ 2026-03-03 20:57:02

○NSns2.cafe24.com2017-09-28 → 2017-09-28 · 2 obs

● 2017-09-28 02:57:52
○ 2026-03-03 20:57:02

○NSsmarttechkorea.com2017-09-28 → 2017-09-28 · 2 obs

● 2017-09-28 02:57:52
○ 2026-03-03 20:57:02

○MXalt.aspmx.daum.net2017-09-28 → 2017-09-28 · 2 obs

● 2017-09-28 02:57:52
○ 2026-03-03 20:57:02

○MXaspmx.daum.net2017-09-28 → 2017-09-28 · 2 obs

● 2017-09-28 02:57:52
○ 2026-03-03 20:57:02

●MXsmarttechkorea-com.mail.protection.outlook.com2026-03-03 → 2026-03-03 · 2 obs

○ 2017-09-28 02:57:52
● 2026-03-03 20:57:02

○A183.111.174.482017-09-28 → 2017-09-28 · 2 obs

● 2017-09-28 02:57:52
○ 2026-03-03 20:57:02

●A3.171.100.322026-03-03 → 2026-03-03 · 2 obs

○ 2017-09-28 02:57:52
● 2026-03-03 20:57:02

●A3.171.100.512026-03-03 → 2026-03-03 · 2 obs

○ 2017-09-28 02:57:52
● 2026-03-03 20:57:02

●A3.171.100.642026-03-03 → 2026-03-03 · 2 obs

○ 2017-09-28 02:57:52
● 2026-03-03 20:57:02

●A3.171.100.662026-03-03 → 2026-03-03 · 2 obs

○ 2017-09-28 02:57:52
● 2026-03-03 20:57:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
smarttechkorea.com	ans1.hostcocoa.com, ans2.hostcocoa.com, ans3.hostcocoa.com, ans4.hostcocoa.com	4 records

✅ Authoritative Response

Server: 205.251.192.117

NS records: ans1.hostcocoa.com, ans2.hostcocoa.com, ans3.hostcocoa.com, ans4.hostcocoa.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for smarttechkorea.com (unsigned zone)

⏱️ Timing

Total: 85ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`3.171.100.51, 3.171.100.66...`
NS	4	`ans1.hostcocoa.com, ans2.hostcocoa.com...`
MX	1	`smarttechkorea-com.mail.protection.outlo`
TXT	3	`MS=ms92459094, google-site-verification=EBzsrL5ch41rOcI...`
SOA	1	`ans1.hostcocoa.com awsdns-hostmaster.ama`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ans1.hostcocoa.com, ans2.hostcocoa.com, ans3.hostcocoa.com...)

Analysis

IP Addresses

smarttechkorea.com maps to four IP numbers: 3.171.100.32, 3.171.100.51, 3.171.100.64 and 3.171.100.66.

Other host names such as static.unitednaturals.com, d326ylkgstke18.cloudfront.net, surveymonkey.co.uk, www.carespotexpresshealthcare.com and coupjoy.com share IPs with smarttechkorea.com.

Name Servers

smarttechkorea.com is delegated to four name servers: ans1.hostcocoa.com, ans2.hostcocoa.com, ans3.hostcocoa.com and ans4.hostcocoa.com.

smarttechkorea.com at least partially shares name servers with other domains, for example skyseed.org, elclight.com, nanopia.org, cstc-postech.org and heidemarie.co.kr.