datafirst.co.kr - dns.ninja

`datafirst.co.kr`

DNSSEC	⚠️ Not signed
A	3.36.24.94^{🇰🇷 Amazon3.36.0.0/14 EC2 ICN prefix}
		PTR	`ec2-3-36-24-94.ap-northeast-2.compute.amazonaws.com`
A	13.125.75.7^{🇰🇷 Amazon13.125.0.0/16}
NS	`ns-79.awsdns-09.com` ⭐
		A	2600:9000:5300:4f00::1^{🇺🇸 Amazon2600:9000:5300::/48 - CloudFront}
			PTR	`ns-79.awsdns-09.com`
		A	205.251.192.79^{🇺🇸 Amazon205.251.192.0/24 prefix}
			PTR	`ns-79.awsdns-09.com`
NS	`ns-1452.awsdns-53.org`
		A	2600:9000:5305:ac00::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1452.awsdns-53.org`
		A	205.251.197.172^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1452.awsdns-53.org`
NS	`ns-1920.awsdns-48.co.uk`
		A	2600:9000:5307:8000::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1920.awsdns-48.co.uk`
		A	205.251.199.128^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1920.awsdns-48.co.uk`
NS	`ns-974.awsdns-57.net`
		A	2600:9000:5303:ce00::1^{🇺🇸 Amazon2600:9000:5303::/48 - CloudFront}
			PTR	`ns-974.awsdns-57.net`
		A	205.251.195.206^{🇺🇸 Amazon205.251.195.0/24 prefix}
			PTR	`ns-974.awsdns-57.net`
MX	`mail.datafirst.co.kr` ⭐
		A	13.124.85.210^{🇰🇷 Amazon13.124.0.0/16}
			PTR	`ec2-13-124-85-210.ap-northeast-2.compute.amazonaws.com`
TXT	`google-site-verification=bim17qH4gMLmmTtvytcTMaL54ylq6wemRuYZPhiRwJA`
TXT	`v=spf1 ip4:13.124.85.210 -all`
SOA	`ns-79.awsdns-09.com`awsdns-hostmaster@amazon.com serial=1

`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=2606050525

WOT: UNKNOWN (62/100)

PTR for

90.6.233.211.in-addr.arpa

Subdomains

mail.datafirst.co.kr

Same first word

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DNS History

17 records (7 active, 10 former)

●NSns-1452.awsdns-53.org2017-10-15 → 2026-06-05 · 2 obs

● 2017-10-15 03:05:24
● 2026-06-05 00:04:08

●NSns-1920.awsdns-48.co.uk2017-10-15 → 2026-06-05 · 2 obs

● 2017-10-15 03:05:24
● 2026-06-05 00:04:08

●NSns-79.awsdns-09.com2017-10-15 → 2026-06-05 · 2 obs

● 2017-10-15 03:05:24
● 2026-06-05 00:04:08

●NSns-974.awsdns-57.net2017-10-15 → 2026-06-05 · 2 obs

● 2017-10-15 03:05:24
● 2026-06-05 00:04:08

○MXalt1.aspmx.l.google.com2017-10-15 → 2017-10-15 · 3 obs

● 2017-10-15 03:05:24
○ 2026-04-07 00:07:04
○ 2026-06-05 00:04:08

○MXalt2.aspmx.l.google.com2017-10-15 → 2017-10-15 · 3 obs

● 2017-10-15 03:05:24
○ 2026-04-07 00:07:04
○ 2026-06-05 00:04:08

○MXalt3.aspmx.l.google.com2017-10-15 → 2017-10-15 · 3 obs

● 2017-10-15 03:05:24
○ 2026-04-07 00:07:04
○ 2026-06-05 00:04:08

○MXalt4.aspmx.l.google.com2017-10-15 → 2017-10-15 · 3 obs

● 2017-10-15 03:05:24
○ 2026-04-07 00:07:04
○ 2026-06-05 00:04:08

○MXaspmx.l.google.com2017-10-15 → 2017-10-15 · 3 obs

● 2017-10-15 03:05:24
○ 2026-04-07 00:07:04
○ 2026-06-05 00:04:08

●MXmail.datafirst.co.kr2026-04-07 → 2026-06-05 · 3 obs

○ 2017-10-15 03:05:24
● 2026-04-07 00:07:04
● 2026-06-05 00:04:08

○A13.124.52.2222026-04-07 → 2026-04-07 · 4 obs

○ 2017-10-15 03:05:24
● 2026-04-07 00:07:04
○ 2026-05-13 17:42:14
○ 2026-06-05 00:04:08

○A13.124.85.2102017-10-15 → 2017-10-15 · 3 obs

● 2017-10-15 03:05:24
○ 2026-04-07 00:07:04
○ 2026-06-05 00:04:08

○A13.125.122.1392026-04-07 → 2026-06-05 · 2 obs

○ 2026-04-07 00:07:04
○ 2026-06-05 00:04:08

●A13.125.75.72026-05-13 → 2026-06-05 · 3 obs

○ 2026-04-07 00:07:04
● 2026-05-13 17:42:14
● 2026-06-05 00:04:08

●A3.36.24.942026-05-13 → 2026-06-05 · 3 obs

○ 2026-04-07 00:07:04
● 2026-05-13 17:42:14
● 2026-06-05 00:04:08

○A43.200.32.1832026-04-07 → 2026-06-05 · 2 obs

○ 2026-04-07 00:07:04
○ 2026-06-05 00:04:08

○A43.201.214.122026-04-07 → 2026-04-07 · 4 obs

○ 2017-10-15 03:05:24
● 2026-04-07 00:07:04
○ 2026-05-13 17:42:14
○ 2026-06-05 00:04:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
kr	c.dns.kr, g.dns.kr, b.dns.kr, f.dns.kr...	-
datafirst.co.kr	ns-79.awsdns-09.com, ns-974.awsdns-57.net, ns-1452.awsdns-53.org, ns-1920.awsdns-48.co.uk	-

✅ Authoritative Response

Server:205.251.195.206

NS records: ns-79.awsdns-09.com, ns-974.awsdns-57.net, ns-1452.awsdns-53.org, ns-1920.awsdns-48.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 6300ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`43.202.234.55, 13.209.232.188`
NS	4	`ns-1452.awsdns-53.org, ns-1920.awsdns-48.co.uk...`
MX	1	`mail.datafirst.co.kr (pri: 10)`
TXT	2	`google-site-verification=bim17qH4gMLmmTt, v=spf1 ip4:13.124.85.210 -all`
SOA	1	`ns-79.awsdns-09.com awsdns-hostmaster.am`

Analysis

Hierarchy

mail.datafirst.co.kr is a subdomain of datafirst.co.kr.

IP Addresses

datafirst.co.kr points to two IP numbers: 3.36.24.94 and 13.125.75.7.

Name Servers

datafirst.co.kr delegates DNS authority to 4 name servers — ns-79.awsdns-09.com, ns-974.awsdns-57.net, ns-1452.awsdns-53.org and ns-1920.awsdns-48.co.uk.

Each of the four hosts ns-79.awsdns-09.com, ns-974.awsdns-57.net, ns-1452.awsdns-53.org and ns-1920.awsdns-48.co.uk has two IP addresses. ns-79.awsdns-09.com points to 205.251.192.79 and 2600:9000:5300:4f00::1. ns-974.awsdns-57.net points to 205.251.195.206 and 2600:9000:5303:ce00::1. ns-1452.awsdns-53.org points to 205.251.197.172 and 2600:9000:5305:ac00::1. ns-1920.awsdns-48.co.uk points to 205.251.199.128 and 2600:9000:5307:8000::1.

Mail Servers

The sole mail server for datafirst.co.kr is mail.datafirst.co.kr.

mail.datafirst.co.kr points to one IP number — 13.124.85.210.