coolncool.com - dns.ninja

`coolncool.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::ac43:9770^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:5a17^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.90.23^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.151.112^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`duke.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b6e^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`duke.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c16e^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`duke.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:216e^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`duke.ns.cloudflare.com`
		A	108.162.193.110^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`duke.ns.cloudflare.com`
		A	172.64.33.110^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`duke.ns.cloudflare.com`
		A	173.245.59.110^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`duke.ns.cloudflare.com`
NS	`rosemary.ns.cloudflare.com`
		A	2606:4700:50::a29f:264d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rosemary.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c24d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`rosemary.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:224d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`rosemary.ns.cloudflare.com`
		A	108.162.194.77^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rosemary.ns.cloudflare.com`
		A	162.159.38.77^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rosemary.ns.cloudflare.com`
		A	172.64.34.77^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rosemary.ns.cloudflare.com`
MX	`kr1-aspmx1.worksmobile.com` ⭐
		A	125.209.209.251^{🇰🇷 nhn-AS-KR125.209.208.0/22 NAVER business platform}
			PTR	`crcvmail.worksmobile.com`
MX	`kr1-aspmx2.worksmobile.com`⁽²⁰⁾
		A	125.209.209.251^{🇰🇷 nhn-AS-KR125.209.208.0/22 NAVER business platform}
			PTR	`crcvmail.worksmobile.com`
MX	`_dc-mx.13a285c655eb.coolncool.com`⁽³⁰⁾
		A	183.111.100.178^{🇰🇷 KT-NET183.104.0.0/13 KORNET KOREA TELECOM}
TXT	`v=spf1 include:spf.worksmobile.com ~all`
TXT	`vspf1 ip4:183.110.224.024 ip4:175.126.146.024 ip4:112.175.12.024 ip4:118.219....`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.90.23, 172.67.151.112
		IPv6 hints	2606:4700:3032::ac43:9770, 2606:4700:3037::6815:5a17
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=191, name=cloudflare-ech.com
SOA	`duke.ns.cloudflare.com`dns@cloudflare.com serial=2411989044

`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=1786517349

Previously NS for

coolncool.com

Subdomains

webmail.coolncool.com

Same first word

coolncool.com

DNS History

28 records (9 active, 19 former)

○NScoolncool.com2026-03-07 → 2026-04-06 · 5 obs

○ 2017-10-18 01:09:32
● 2026-03-07 21:54:02
● 2026-04-06 14:13:04
○ 2026-05-18 01:49:42
○ 2026-08-12 07:18:20

●NSduke.ns.cloudflare.com2026-05-18 → 2026-08-12 · 3 obs

○ 2026-04-06 14:13:04
● 2026-05-18 01:49:42
● 2026-08-12 07:18:20

○NSns1.cafe24.co.kr2026-03-07 → 2026-04-06 · 5 obs

○ 2017-10-18 01:09:32
● 2026-03-07 21:54:02
● 2026-04-06 14:13:04
○ 2026-05-18 01:49:42
○ 2026-08-12 07:18:20

○NSns1.cafe24.com2026-03-07 → 2026-04-06 · 5 obs

○ 2017-10-18 01:09:32
● 2026-03-07 21:54:02
● 2026-04-06 14:13:04
○ 2026-05-18 01:49:42
○ 2026-08-12 07:18:20

○NSns1.web123.co.kr2008-03-20 → 2017-10-18 · 4 obs

● 2008-03-20 06:03:50
● 2017-10-18 01:09:32
○ 2026-03-07 21:54:02
○ 2026-08-12 07:18:20

○NSns2.cafe24.co.kr2026-03-07 → 2026-04-06 · 5 obs

○ 2017-10-18 01:09:32
● 2026-03-07 21:54:02
● 2026-04-06 14:13:04
○ 2026-05-18 01:49:42
○ 2026-08-12 07:18:20

○NSns2.cafe24.com2026-03-07 → 2026-04-06 · 5 obs

○ 2017-10-18 01:09:32
● 2026-03-07 21:54:02
● 2026-04-06 14:13:04
○ 2026-05-18 01:49:42
○ 2026-08-12 07:18:20

○NSns2.web123.co.kr2008-03-20 → 2017-10-18 · 4 obs

● 2008-03-20 06:03:50
● 2017-10-18 01:09:32
○ 2026-03-07 21:54:02
○ 2026-08-12 07:18:20

●NSrosemary.ns.cloudflare.com2026-05-18 → 2026-08-12 · 3 obs

○ 2026-04-06 14:13:04
● 2026-05-18 01:49:42
● 2026-08-12 07:18:20

●MX_dc-mx.13a285c655eb.coolncool.com2026-05-18 → 2026-08-12 · 3 obs

○ 2026-04-06 14:13:04
● 2026-05-18 01:49:42
● 2026-08-12 07:18:20

●MXkr1-aspmx1.worksmobile.com2026-03-07 → 2026-08-12 · 3 obs

○ 2017-10-18 01:09:32
● 2026-03-07 21:54:02
● 2026-08-12 07:18:20

●MXkr1-aspmx2.worksmobile.com2026-03-07 → 2026-08-12 · 3 obs

○ 2017-10-18 01:09:32
● 2026-03-07 21:54:02
● 2026-08-12 07:18:20

○MXmail.coolncool.com2008-03-20 → 2017-06-28 · 4 obs

● 2008-03-20 06:03:50
● 2017-06-28 03:40:44
○ 2017-10-18 01:09:32
○ 2026-08-12 07:18:20

○MXspamfilter3.speedhosting.co.kr2015-06-25 → 2017-06-28 · 5 obs

○ 2008-03-20 06:03:50
● 2015-06-25 22:50:02
● 2017-06-28 03:40:44
○ 2017-10-18 01:09:32
○ 2026-08-12 07:18:20

○MXwebmail.coolncool.com2017-10-18 → 2026-04-06 · 5 obs

○ 2017-06-28 03:40:44
● 2017-10-18 01:09:32
● 2026-04-06 14:13:04
○ 2026-05-18 01:49:42
○ 2026-08-12 07:18:20

●A104.21.90.232026-05-18 → 2026-08-12 · 5 obs

○ 2026-04-06 14:13:04
● 2026-05-18 01:49:42
○ 2026-06-21 15:46:14
● 2026-07-22 23:57:28
● 2026-08-12 07:18:20

○A118.129.167.632015-06-25 → 2017-10-18 · 5 obs

○ 2008-03-20 06:03:50
● 2015-06-25 22:50:02
● 2017-10-18 01:09:32
○ 2026-03-07 21:54:02
○ 2026-08-12 07:18:20

●A172.67.151.1122026-05-18 → 2026-08-12 · 5 obs

○ 2026-04-06 14:13:04
● 2026-05-18 01:49:42
○ 2026-06-21 15:46:14
● 2026-07-22 23:57:28
● 2026-08-12 07:18:20

○A188.114.96.02026-06-21 → 2026-06-21 · 4 obs

○ 2026-05-18 01:49:42
● 2026-06-21 15:46:14
○ 2026-07-22 23:57:28
○ 2026-08-12 07:18:20

○A188.114.97.02026-06-21 → 2026-06-21 · 4 obs

○ 2026-05-18 01:49:42
● 2026-06-21 15:46:14
○ 2026-07-22 23:57:28
○ 2026-08-12 07:18:20

○A221.139.3.162008-03-20 → 2008-03-20 · 3 obs

● 2008-03-20 06:03:50
○ 2015-06-25 22:50:02
○ 2026-08-12 07:18:20

○A222.122.198.1812026-03-07 → 2026-04-06 · 5 obs

○ 2017-10-18 01:09:32
● 2026-03-07 21:54:02
● 2026-04-06 14:13:04
○ 2026-05-18 01:49:42
○ 2026-08-12 07:18:20

●A2606:4700:3032::ac43:97702026-07-22 → 2026-08-12 · 3 obs

○ 2026-06-21 15:46:14
● 2026-07-22 23:57:28
● 2026-08-12 07:18:20

○A2606:4700:3035::6815:5a172026-05-18 → 2026-05-18 · 4 obs

○ 2026-04-06 14:13:04
● 2026-05-18 01:49:42
○ 2026-06-21 15:46:14
○ 2026-08-12 07:18:20

○A2606:4700:3035::ac43:97702026-05-18 → 2026-05-18 · 4 obs

○ 2026-04-06 14:13:04
● 2026-05-18 01:49:42
○ 2026-06-21 15:46:14
○ 2026-08-12 07:18:20

●A2606:4700:3037::6815:5a172026-07-22 → 2026-08-12 · 3 obs

○ 2026-06-21 15:46:14
● 2026-07-22 23:57:28
● 2026-08-12 07:18:20

○A2a06:98c1:3120::2026-06-21 → 2026-06-21 · 4 obs

○ 2026-05-18 01:49:42
● 2026-06-21 15:46:14
○ 2026-07-22 23:57:28
○ 2026-08-12 07:18:20

○A2a06:98c1:3121::2026-06-21 → 2026-06-21 · 4 obs

○ 2026-05-18 01:49:42
● 2026-06-21 15:46:14
○ 2026-07-22 23:57:28
○ 2026-08-12 07:18:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
coolncool.com	duke.ns.cloudflare.com, rosemary.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.194.77

NS records: duke.ns.cloudflare.com, rosemary.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coolncool.com (unsigned zone)

⏱️ Timing

Total: 233ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.90.23, 172.67.151.112`
AAAA	2	`2606:4700:3032::ac43:9770, 2606:4700:3037::6815:5a17`
NS	2	`duke.ns.cloudflare.com, rosemary.ns.cloudflare.com`
MX	3	`kr1-aspmx1.worksmobile.com (pri: 10), kr1-aspmx2.worksmobile.com (pri: 20)...`
TXT	2	`v=spf1 include:spf.worksmobile.com ~all, vspf1 ip4:183.110.224.024 ip4:175.126.14`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`duke.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (duke.ns.cloudflare.com, duke.ns.cloudflare.com, duke.ns.cloudflare.com...)

Analysis

Hierarchy

coolncool.com serves as the parent of webmail.coolncool.com.

IP Addresses

coolncool.com has four IP addresses: 104.21.90.23, 172.67.151.112, 2606:4700:3032::ac43:9770 and 2606:4700:3037::6815:5a17.

Two other host names, along with rockbottom.me, kudasgp88.com and fbookcameroun.com, also share IP numbers with coolncool.com.

Name Servers

coolncool.com is delegated to two name servers: duke.ns.cloudflare.com and rosemary.ns.cloudflare.com.

coolncool.com shares its NS records with other domains, for example (0x736578)games.cc, bonhamservices.com, ditchit.com and two others.

coolncool.com has at least partial name server overlap with other domains, such as b2btradeshows.in, brooklynsteamers.com, funct.org and two others.

It is common to find these name servers paired with the name servers eugene.ns.cloudflare.com.

DNS names with 6 IP addresses:

duke.ns.cloudflare.com resolves to 108.162.193.110, 172.64.33.110, 173.245.59.110 and 3 other IP addresses.

rosemary.ns.cloudflare.com resolves to 108.162.194.77, 162.159.38.77, 172.64.34.77 and 3 other IP addresses.

Mail Servers

coolncool.com has three mail servers: kr1-aspmx1.worksmobile.com, kr1-aspmx2.worksmobile.com and _dc-mx.13a285c655eb.coolncool.com.

There is at least a partial MX overlap between coolncool.com and other domains, including greatgts.com, elluks.com, poscore.net and two others.

kr1-aspmx1.worksmobile.com, kr1-aspmx2.worksmobile.com and _dc-mx.13a285c655eb.coolncool.com each have a single IP address. kr1-aspmx1.worksmobile.com points to 125.209.209.251, kr1-aspmx2.worksmobile.com also points to 125.209.209.251 and _dc-mx.13a285c655eb.coolncool.com points to 183.111.100.178.

kr1-aspmx1.worksmobile.com and kr1-aspmx2.worksmobile.com are host names that each point to 125.209.209.251 IP addresses.