coolnav.com - dns.ninja

`coolnav.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:17c4^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:d536^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.23.196^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.213.54^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`bayan.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b48^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bayan.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c148^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`bayan.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2148^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`bayan.ns.cloudflare.com`
		A	108.162.193.72^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bayan.ns.cloudflare.com`
		A	172.64.33.72^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bayan.ns.cloudflare.com`
		A	173.245.59.72^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bayan.ns.cloudflare.com`
NS	`josephine.ns.cloudflare.com`
		A	2606:4700:50::a29f:2640^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`josephine.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c240^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`josephine.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2240^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`josephine.ns.cloudflare.com`
		A	108.162.194.64^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`josephine.ns.cloudflare.com`
		A	162.159.38.64^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`josephine.ns.cloudflare.com`
		A	172.64.34.64^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`josephine.ns.cloudflare.com`
MX	`mx1.feishu.cn` ⭐
		A	52.220.106.220^{🇸🇬 Amazon52.220.0.0/15 SIN prefix}
			PTR	`ec2-52-220-106-220.ap-southeast-1.compute.amazonaws.com`
MX	`mx2.feishu.cn`⁽⁵⁾
		A	101.126.58.225^{🇨🇳 VOLCANO-ENGINE101.126.56.0/21 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	122.14.229.0^{🇨🇳 CHINAMOBILE-CN122.14.224.0/20}
MX	`mx3.feishu.cn`⁽¹⁰⁾
		A	52.220.106.220^{🇸🇬 Amazon52.220.0.0/15 SIN prefix}
			PTR	`ec2-52-220-106-220.ap-southeast-1.compute.amazonaws.com`
		A	101.126.58.225^{🇨🇳 VOLCANO-ENGINE101.126.56.0/21 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	122.14.229.0^{🇨🇳 CHINAMOBILE-CN122.14.224.0/20}
TXT	`v=spf1 +include:_netblocks.m.feishu.cn -all`
TXT	`verification-code-site-App_feishu=MmjTLlBc2WiZakFfWRF3`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.23.196, 172.67.213.54
		IPv6 hints	2606:4700:3033::6815:17c4, 2606:4700:3035::ac43:d536
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=44, name=cloudflare-ech.com
SOA	`bayan.ns.cloudflare.com`dns@cloudflare.com serial=2407248319

`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=1783182751

Same first word

coolnav.com

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DNS History

17 records (9 active, 8 former)

●NSbayan.ns.cloudflare.com2026-03-03 → 2026-07-04 · 3 obs

○ 2017-04-01 12:10:34
● 2026-03-03 00:39:34
● 2026-07-04 16:52:28

●NSjosephine.ns.cloudflare.com2026-03-03 → 2026-07-04 · 3 obs

○ 2017-04-01 12:10:34
● 2026-03-03 00:39:34
● 2026-07-04 16:52:28

○NSns6357.hostgator.com2017-04-01 → 2017-04-01 · 3 obs

● 2017-04-01 12:10:34
○ 2026-03-03 00:39:34
○ 2026-07-04 16:52:28

○NSns6358.hostgator.com2017-04-01 → 2017-04-01 · 3 obs

● 2017-04-01 12:10:34
○ 2026-03-03 00:39:34
○ 2026-07-04 16:52:28

○MXmail.coolnav.com2017-04-01 → 2017-04-01 · 3 obs

● 2017-04-01 12:10:34
○ 2026-03-03 00:39:34
○ 2026-07-04 16:52:28

●MXmx1.feishu.cn2026-06-19 → 2026-07-04 · 3 obs

○ 2026-03-03 00:39:34
● 2026-06-19 18:20:02
● 2026-07-04 16:52:28

●MXmx2.feishu.cn2026-06-19 → 2026-07-04 · 3 obs

○ 2026-03-03 00:39:34
● 2026-06-19 18:20:02
● 2026-07-04 16:52:28

●MXmx3.feishu.cn2026-06-19 → 2026-07-04 · 3 obs

○ 2026-03-03 00:39:34
● 2026-06-19 18:20:02
● 2026-07-04 16:52:28

●A104.21.23.1962026-06-19 → 2026-07-04 · 3 obs

○ 2026-04-24 09:38:28
● 2026-06-19 18:20:02
● 2026-07-04 16:52:28

○A154.219.99.2122026-03-03 → 2026-04-24 · 5 obs

○ 2017-04-01 12:10:34
● 2026-03-03 00:39:34
● 2026-04-24 09:38:28
○ 2026-06-19 18:20:02
○ 2026-07-04 16:52:28

●A172.67.213.542026-06-19 → 2026-07-04 · 3 obs

○ 2026-04-24 09:38:28
● 2026-06-19 18:20:02
● 2026-07-04 16:52:28

○A192.254.231.702017-04-01 → 2017-04-01 · 4 obs

○ 2016-07-18 21:54:58
● 2017-04-01 12:10:34
○ 2026-03-03 00:39:34
○ 2026-07-04 16:52:28

○A2606:4700:3030::ac43:d5362026-06-19 → 2026-06-19 · 4 obs

○ 2026-04-24 09:38:28
● 2026-06-19 18:20:02
○ 2026-06-22 19:49:42
○ 2026-07-04 16:52:28

○A2606:4700:3031::6815:17c42026-06-19 → 2026-06-19 · 4 obs

○ 2026-04-24 09:38:28
● 2026-06-19 18:20:02
○ 2026-06-22 19:49:42
○ 2026-07-04 16:52:28

●A2606:4700:3033::6815:17c42026-06-22 → 2026-07-04 · 3 obs

○ 2026-06-19 18:20:02
● 2026-06-22 19:49:42
● 2026-07-04 16:52:28

●A2606:4700:3035::ac43:d5362026-06-22 → 2026-07-04 · 3 obs

○ 2026-06-19 18:20:02
● 2026-06-22 19:49:42
● 2026-07-04 16:52:28

○A74.220.199.62016-07-18 → 2016-07-18 · 3 obs

● 2016-07-18 21:54:58
○ 2017-04-01 12:10:34
○ 2026-07-04 16:52:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	f.gtld-servers.net, m.gtld-servers.net, d.gtld-servers.net, g.gtld-servers.net...	-
coolnav.com	bayan.ns.cloudflare.com, josephine.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.72

NS records: bayan.ns.cloudflare.com, josephine.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 694ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.213.54, 104.21.23.196`
AAAA	2	`2606:4700:3033::6815:17c4, 2606:4700:3035::ac43:d536`
NS	2	`bayan.ns.cloudflare.com, josephine.ns.cloudflare.com`
MX	3	`mx1.feishu.cn (pri: 1), mx3.feishu.cn (pri: 10)...`
TXT	2	`v=spf1 +include:_netblocks.m.feishu.cn -, verification-code-site-App_feishu=MmjTLl`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`bayan.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

coolnav.com resolves to four IP addresses: 104.21.23.196, 172.67.213.54, 2606:4700:3033::6815:17c4 and 2606:4700:3035::ac43:d536.

Among the host names that share IP numbers with coolnav.com are atusaludenlinea.com, hadassahisme.com, hdhub4ucom.in and two others.

Name Servers

DNS delegation for coolnav.com points to two name servers: bayan.ns.cloudflare.com and josephine.ns.cloudflare.com.

coolnav.com has the same name server delegation as a number of other domains, such as onlinepharmasupplies.com, sleepchest.net, ywkk.com and two more.

coolnav.com has at least partial name server overlap with other domains, such as cfsjdp.com, graphiexp.com, bjez.com.cn and two others.

It is common to find these name servers paired with the name servers ned.ns.cloudflare.com, dion.ns.cloudflare.com, donna.ns.cloudflare.com and lucy.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

bayan.ns.cloudflare.com has IP addresses 108.162.193.72, 172.64.33.72 and 173.245.59.72, plus 3 other.

josephine.ns.cloudflare.com has IP addresses 108.162.194.64, 162.159.38.64 and 172.64.34.64, plus 3 other.

Mail Servers

coolnav.com has three mail servers: mx1.feishu.cn, mx2.feishu.cn and mx3.feishu.cn.

coolnav.com shares at least some of its mail servers with other domains — for example ainnc.com, dailyforecast.net, unhappygame.com and two more.

Hosts with three IP address records:

mx3.feishu.cn has IP addresses 52.220.106.220, 101.126.58.225 and 122.14.229.0.

Hosts with two IP numbers each:

mx2.feishu.cn has two IP addresses: 101.126.58.225 and 122.14.229.0.

Hosts that resolve to one IP address:

mx1.feishu.cn directs to 52.220.106.220.

Host names pointing to 52.220.106.220 IP addresses: mx3.feishu.cn and mx1.feishu.cn.

Host names pointing to 101.126.58.225 IP addresses: mx3.feishu.cn and mx2.feishu.cn.

Host names pointing to 122.14.229.0 IP addresses: mx3.feishu.cn and mx2.feishu.cn.