coolsim.org - dns.ninja

`coolsim.org`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:cebf^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:4558^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.69.88^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.206.191^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`donna.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a97^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`donna.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c097^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`donna.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2097^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`donna.ns.cloudflare.com`
		A	108.162.192.151^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`donna.ns.cloudflare.com`
		A	172.64.32.151^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`donna.ns.cloudflare.com`
		A	173.245.58.151^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`donna.ns.cloudflare.com`
NS	`marek.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bca^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marek.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1ca^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`marek.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21ca^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`marek.ns.cloudflare.com`
		A	108.162.193.202^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marek.ns.cloudflare.com`
		A	172.64.33.202^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marek.ns.cloudflare.com`
		A	173.245.59.202^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marek.ns.cloudflare.com`
MX	`coolsim-org.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c946::7^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-ch5pr02cu00307.inbound.protection.outlook.com`
		A	2a01:111:f403:f901::2^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bl2pr02cu00402.inbound.protection.outlook.com`
		A	2a01:111:f403:f903::^{🇺🇸 Microsoft2a01:111:f000::/36}
		A	2a01:111:f403:f913::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-cy1pr03cu00100.inbound.protection.outlook.com`
		A	52.101.40.24^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-cy5pr05cu00100.inbound.protection.outlook.com`
		A	52.101.41.3^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sj2pr05cu00103.inbound.protection.outlook.com`
		A	52.101.41.21^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sj2pr05cu00305.inbound.protection.outlook.com`
		A	52.101.194.15^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-ch4pr21cu00107.inbound.protection.outlook.com`
TXT	`MS=ms69511957`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.69.88, 172.67.206.191
		IPv6 hints	2606:4700:3030::ac43:cebf, 2606:4700:3035::6815:4558
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=68, name=cloudflare-ech.com
SOA	`donna.ns.cloudflare.com`dns@cloudflare.com serial=2410427621

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1784961653

Same first word

coolsim.com

coolsim.org

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DNS History

15 records (7 active, 8 former)

●NSdonna.ns.cloudflare.com2026-04-23 → 2026-07-25 · 3 obs

○ 2020-02-26 00:13:06
● 2026-04-23 05:51:10
● 2026-07-25 07:03:20

●NSmarek.ns.cloudflare.com2026-04-23 → 2026-07-25 · 3 obs

○ 2020-02-26 00:13:06
● 2026-04-23 05:51:10
● 2026-07-25 07:03:20

○NSns03.domaincontrol.com2015-06-08 → 2020-02-26 · 4 obs

● 2015-06-08 18:36:04
● 2020-02-26 00:13:06
○ 2026-04-23 05:51:10
○ 2026-07-25 07:03:20

○NSns04.domaincontrol.com2015-06-08 → 2020-02-26 · 4 obs

● 2015-06-08 18:36:04
● 2020-02-26 00:13:06
○ 2026-04-23 05:51:10
○ 2026-07-25 07:03:20

●MXcoolsim-org.mail.protection.outlook.com2026-04-23 → 2026-07-25 · 3 obs

○ 2020-02-26 00:13:06
● 2026-04-23 05:51:10
● 2026-07-25 07:03:20

○MXmailstore1.secureserver.net2015-06-08 → 2020-02-26 · 4 obs

● 2015-06-08 18:36:04
● 2020-02-26 00:13:06
○ 2026-04-23 05:51:10
○ 2026-07-25 07:03:20

○MXsmtp.secureserver.net2015-06-08 → 2020-02-26 · 4 obs

● 2015-06-08 18:36:04
● 2020-02-26 00:13:06
○ 2026-04-23 05:51:10
○ 2026-07-25 07:03:20

●A104.21.69.882026-04-23 → 2026-07-25 · 3 obs

○ 2020-02-26 00:13:06
● 2026-04-23 05:51:10
● 2026-07-25 07:03:20

●A172.67.206.1912026-04-23 → 2026-07-25 · 3 obs

○ 2020-02-26 00:13:06
● 2026-04-23 05:51:10
● 2026-07-25 07:03:20

○A184.168.221.152020-02-26 → 2020-02-26 · 4 obs

○ 2017-04-06 21:34:56
● 2020-02-26 00:13:06
○ 2026-04-23 05:51:10
○ 2026-07-25 07:03:20

●A2606:4700:3030::ac43:cebf2026-06-21 → 2026-07-25 · 3 obs

○ 2026-06-08 01:18:44
● 2026-06-21 08:40:46
● 2026-07-25 07:03:20

○A2606:4700:3033::ac43:cebf2026-04-23 → 2026-06-08 · 5 obs

○ 2020-02-26 00:13:06
● 2026-04-23 05:51:10
● 2026-06-08 01:18:44
○ 2026-06-21 08:40:46
○ 2026-07-25 07:03:20

●A2606:4700:3035::6815:45582026-06-21 → 2026-07-25 · 3 obs

○ 2026-06-08 01:18:44
● 2026-06-21 08:40:46
● 2026-07-25 07:03:20

○A2606:4700:3037::6815:45582026-04-23 → 2026-06-08 · 5 obs

○ 2020-02-26 00:13:06
● 2026-04-23 05:51:10
● 2026-06-08 01:18:44
○ 2026-06-21 08:40:46
○ 2026-07-25 07:03:20

○A50.63.202.302015-06-08 → 2017-04-06 · 4 obs

● 2015-06-08 18:36:04
● 2017-04-06 21:34:56
○ 2020-02-26 00:13:06
○ 2026-07-25 07:03:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
coolsim.org	donna.ns.cloudflare.com, marek.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.193.202

NS records: donna.ns.cloudflare.com, marek.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coolsim.org (unsigned zone)

⏱️ Timing

Total: 1071ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.69.88, 172.67.206.191`
AAAA	2	`2606:4700:3030::ac43:cebf, 2606:4700:3035::6815:4558`
NS	2	`donna.ns.cloudflare.com, marek.ns.cloudflare.com`
MX	1	`coolsim-org.mail.protection.outlook.com`
TXT	2	`MS=ms69511957, v=spf1 include:spf.protection.outlook.co`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`donna.ns.cloudflare.com dns.cloudflare.c`

Analysis

IP Addresses

coolsim.org has four IP addresses: 104.21.69.88, 172.67.206.191, 2606:4700:3030::ac43:cebf and 2606:4700:3035::6815:4558.

Two other host names, along with www.wintrix.icu, scriburo.be and www.mailzone.net, also share IP numbers with coolsim.org.

Name Servers

coolsim.org uses two name servers for its delegation: donna.ns.cloudflare.com and marek.ns.cloudflare.com.

coolsim.org shares its NS records with other domains, for example gleancrew.com, barrcode.org, hostflex.org and two others.

coolsim.org partially shares its NS delegation with several other domains, including satsangbhavan.net, nails-formation.com, 1689bcf.org and two others.

The name servers moura.ns.cloudflare.com, bayan.ns.cloudflare.com, karl.ns.cloudflare.com and two others are commonly seen in use alongside these name servers.

DNS names with 6 IP addresses:

Hostname donna.ns.cloudflare.com directs to 108.162.192.151, 172.64.32.151 and 173.245.58.151 along with 3 other IP addresses.

Hostname marek.ns.cloudflare.com directs to 108.162.193.202, 172.64.33.202 and 173.245.59.202 along with 3 other IP addresses.

Mail Servers

The sole mail server for coolsim.org is coolsim-org.mail.protection.outlook.com.

With 8 IP addresses total, coolsim-org.mail.protection.outlook.com resolves to 52.101.40.24, 52.101.41.3, 52.101.41.21 and 5 others.