`bluescreen.co.kr`

DNSSEC	⚠️ Not signed
A	222.122.209.143^{🇰🇷 KT-NET222.122.0.0/16 Korea Telecom, Seoul, Korea}
NS	`coby.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b5c^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`coby.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c15c^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`coby.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:215c^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`coby.ns.cloudflare.com`
		A	108.162.193.92^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`coby.ns.cloudflare.com`
		A	172.64.33.92^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`coby.ns.cloudflare.com`
		A	173.245.59.92^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`coby.ns.cloudflare.com`
NS	`kristin.ns.cloudflare.com`
		A	2606:4700:50::adf5:3ab5^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kristin.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0b5^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`kristin.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20b5^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`kristin.ns.cloudflare.com`
		A	108.162.192.181^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kristin.ns.cloudflare.com`
		A	172.64.32.181^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kristin.ns.cloudflare.com`
		A	173.245.58.181^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kristin.ns.cloudflare.com`
MX	`mx1.daouoffice.com` ⭐
		A	35.216.20.220^{🇰🇷 Google35.216.0.0/17}
			PTR	`prod-dose-smtp-3.daouoffice.com`
		A	35.216.41.104^{🇰🇷 Google35.216.0.0/17}
			PTR	`prod-dose-smtp-2.daouoffice.com`
		A	35.216.61.236^{🇰🇷 Google35.216.0.0/17}
			PTR	`prod-dose-smtp-1.daouoffice.com`
MX	`mx3.daouoffice.com` ⭐
		A	35.216.20.220^{🇰🇷 Google35.216.0.0/17}
			PTR	`prod-dose-smtp-3.daouoffice.com`
		A	35.216.41.104^{🇰🇷 Google35.216.0.0/17}
			PTR	`prod-dose-smtp-2.daouoffice.com`
		A	35.216.61.236^{🇰🇷 Google35.216.0.0/17}
			PTR	`prod-dose-smtp-1.daouoffice.com`
MX	`mx2.daouoffice.com`⁽¹⁰⁾
		A	35.216.20.220^{🇰🇷 Google35.216.0.0/17}
			PTR	`prod-dose-smtp-3.daouoffice.com`
		A	35.216.41.104^{🇰🇷 Google35.216.0.0/17}
			PTR	`prod-dose-smtp-2.daouoffice.com`
		A	35.216.61.236^{🇰🇷 Google35.216.0.0/17}
			PTR	`prod-dose-smtp-1.daouoffice.com`
TXT	`v=spf1 include:_spf.daouoffice.com ~all`
SOA	`coby.ns.cloudflare.com`dns@cloudflare.com serial=2399855861

`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=2605100627

WOT: UNKNOWN (62/100)

Previously NS for

bluescreen.co.kr

Same first word

Similar names

screenblue.com

sereneclub.com

clubserene.com

screenblue.de

celebnurse.com

DNS History

17 records (6 active, 11 former)

○NSbluescreen.co.kr2016-04-19 → 2020-02-02 · 5 obs

○ 2016-01-26 10:40:06
● 2016-04-19 01:13:02
● 2020-02-02 02:05:24
○ 2026-04-11 01:56:50
○ 2026-05-10 07:34:56

●NScoby.ns.cloudflare.com2026-04-11 → 2026-05-10 · 3 obs

○ 2020-02-02 02:05:24
● 2026-04-11 01:56:50
● 2026-05-10 07:34:56

●NSkristin.ns.cloudflare.com2026-04-11 → 2026-05-10 · 3 obs

○ 2020-02-02 02:05:24
● 2026-04-11 01:56:50
● 2026-05-10 07:34:56

○NSns.bluescreen.co.kr2016-04-19 → 2020-02-02 · 5 obs

○ 2016-01-26 10:40:06
● 2016-04-19 01:13:02
● 2020-02-02 02:05:24
○ 2026-04-11 01:56:50
○ 2026-05-10 07:34:56

○NSns1.bluescreen.co.kr2016-04-19 → 2020-02-02 · 5 obs

○ 2016-01-26 10:40:06
● 2016-04-19 01:13:02
● 2020-02-02 02:05:24
○ 2026-04-11 01:56:50
○ 2026-05-10 07:34:56

○NSns1.intihost.com2015-05-29 → 2016-01-26 · 4 obs

● 2015-05-29 01:08:34
● 2016-01-26 10:40:06
○ 2016-04-19 01:13:02
○ 2026-05-10 07:34:56

○NSns2.bluescreen.co.kr2016-04-19 → 2020-02-02 · 5 obs

○ 2016-01-26 10:40:06
● 2016-04-19 01:13:02
● 2020-02-02 02:05:24
○ 2026-04-11 01:56:50
○ 2026-05-10 07:34:56

○NSns2.intihost.com2015-05-29 → 2016-01-26 · 4 obs

● 2015-05-29 01:08:34
● 2016-01-26 10:40:06
○ 2016-04-19 01:13:02
○ 2026-05-10 07:34:56

○NSns3.bluescreen.co.kr2016-04-19 → 2020-02-02 · 5 obs

○ 2016-01-26 10:40:06
● 2016-04-19 01:13:02
● 2020-02-02 02:05:24
○ 2026-04-11 01:56:50
○ 2026-05-10 07:34:56

○MXmail.bluescreen.co.kr2015-05-29 → 2016-01-26 · 4 obs

● 2015-05-29 01:08:34
● 2016-01-26 10:40:06
○ 2016-04-19 01:13:02
○ 2026-05-10 07:34:56

●MXmx1.daouoffice.com2026-04-11 → 2026-05-10 · 3 obs

○ 2020-02-02 02:05:24
● 2026-04-11 01:56:50
● 2026-05-10 07:34:56

●MXmx2.daouoffice.com2026-04-11 → 2026-05-10 · 3 obs

○ 2020-02-02 02:05:24
● 2026-04-11 01:56:50
● 2026-05-10 07:34:56

●MXmx3.daouoffice.com2026-04-11 → 2026-05-10 · 3 obs

○ 2020-02-02 02:05:24
● 2026-04-11 01:56:50
● 2026-05-10 07:34:56

○MXrmw-002.fmcity.com2016-04-19 → 2020-02-02 · 5 obs

○ 2016-01-26 10:40:06
● 2016-04-19 01:13:02
● 2020-02-02 02:05:24
○ 2026-04-11 01:56:50
○ 2026-05-10 07:34:56

○A121.78.233.1392015-05-29 → 2016-01-26 · 4 obs

● 2015-05-29 01:08:34
● 2016-01-26 10:40:06
○ 2016-04-19 01:13:02
○ 2026-05-10 07:34:56

○A183.111.161.1992016-04-19 → 2020-02-02 · 5 obs

○ 2016-01-26 10:40:06
● 2016-04-19 01:13:02
● 2020-02-02 02:05:24
○ 2026-04-11 01:56:50
○ 2026-05-10 07:34:56

●A222.122.209.1432026-04-11 → 2026-05-10 · 3 obs

○ 2020-02-02 02:05:24
● 2026-04-11 01:56:50
● 2026-05-10 07:34:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
kr	e.dns.kr, b.dns.kr, c.dns.kr, d.dns.kr...	-
bluescreen.co.kr	kristin.ns.cloudflare.com, coby.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.59.92

NS records: kristin.ns.cloudflare.com, coby.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 843ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`222.122.209.143`
NS	2	`coby.ns.cloudflare.com, kristin.ns.cloudflare.com`
MX	3	`mx2.daouoffice.com (pri: 10), mx1.daouoffice.com (pri: 5)...`
TXT	1	`v=spf1 include:_spf.daouoffice.com ~all`
SOA	1	`coby.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

bluescreen.co.kr points to IP number: 222.122.209.143.

Other host names, for instance skmagicu1.com share IP numbers with bluescreen.co.kr.

Name Servers

bluescreen.co.kr is delegated to two name servers: coby.ns.cloudflare.com and kristin.ns.cloudflare.com.

bluescreen.co.kr shares the same name server setup as i35g.com, spaceroom.net, national-conservative.com, mail.zjevik.com and savefromnets.com.

bluescreen.co.kr at least partially shares name servers with other domains, for instance mbibeta.com, e-firma24.com, moroccolanguageandculture.com, cn-zhonghui.com and odensetandpleje.dk.

these name servers are commonly used together with the name servers ollie.ns.cloudflare.com, stanley.ns.cloudflare.com, ernest.ns.cloudflare.com, carter.ns.cloudflare.com and teagan.ns.cloudflare.com.

Host names with six IP numbers:

coby.ns.cloudflare.com points to 2606:4700:58::adf5:3b5c, 2803:f800:50::6ca2:c15c, 2a06:98c1:50::ac40:215c, 108.162.193.92, 172.64.33.92 and 173.245.59.92.

kristin.ns.cloudflare.com points to 2606:4700:50::adf5:3ab5, 2803:f800:50::6ca2:c0b5, 2a06:98c1:50::ac40:20b5, 108.162.192.181, 172.64.32.181 and 173.245.58.181.

Mail Servers

Three mail servers handle bluescreen.co.kr: mx1.daouoffice.com, mx2.daouoffice.com and mx3.daouoffice.com.

bluescreen.co.kr shares at least partially some mail servers with other domains, including sekicon.com, ubiquoss.com, stoicent.com, dain-rmc.co.kr and syacht.or.kr.