`icu-edu.org`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::ac43:d007^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:3516^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.53.22^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.208.7^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`igor.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b77^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`igor.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c177^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`igor.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2177^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`igor.ns.cloudflare.com`
		A	108.162.193.119^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`igor.ns.cloudflare.com`
		A	172.64.33.119^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`igor.ns.cloudflare.com`
		A	173.245.59.119^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`igor.ns.cloudflare.com`
NS	`nina.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a88^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nina.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c088^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`nina.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2088^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`nina.ns.cloudflare.com`
		A	108.162.192.136^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nina.ns.cloudflare.com`
		A	172.64.32.136^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nina.ns.cloudflare.com`
		A	173.245.58.136^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nina.ns.cloudflare.com`
MX	`mail.icu-edu.org` ⭐
		A	104.248.39.236^{🇩🇪 DIGITALOCEAN104.248.32.0/20 DigitalOcean}
			PTR	`mail.mooestudents.com`
TXT	`v=spf1 -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.53.22, 172.67.208.7
		IPv6 hints	2606:4700:3033::ac43:d007, 2606:4700:3035::6815:3516
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=249, name=cloudflare-ech.com
SOA	`igor.ns.cloudflare.com`dns@cloudflare.com serial=2399391560

`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=1778574763

Previously MX for

icu-edu.org

Subdomains

mail.icu-edu.org

Same first word

icu-edu.com

icu-edu.org

Similar names

ciu-edu.org

iuc-edu.ca

ciu-edu.eu

iuc-edu.eu

DNS History

24 records (7 active, 17 former)

○NSdns1.name-services.com2017-08-22 → 2017-08-22 · 4 obs

○ 2016-11-07 23:44:58
● 2017-08-22 20:24:58
○ 2026-04-17 05:13:22
○ 2026-05-12 08:47:58

○NSdns2.name-services.com2017-08-22 → 2017-08-22 · 4 obs

○ 2016-11-07 23:44:58
● 2017-08-22 20:24:58
○ 2026-04-17 05:13:22
○ 2026-05-12 08:47:58

○NSdns3.name-services.com2017-08-22 → 2017-08-22 · 4 obs

○ 2016-11-07 23:44:58
● 2017-08-22 20:24:58
○ 2026-04-17 05:13:22
○ 2026-05-12 08:47:58

○NSdns4.name-services.com2017-08-22 → 2017-08-22 · 4 obs

○ 2016-11-07 23:44:58
● 2017-08-22 20:24:58
○ 2026-04-17 05:13:22
○ 2026-05-12 08:47:58

○NSdns5.name-services.com2017-08-22 → 2017-08-22 · 4 obs

○ 2016-11-07 23:44:58
● 2017-08-22 20:24:58
○ 2026-04-17 05:13:22
○ 2026-05-12 08:47:58

●NSigor.ns.cloudflare.com2026-04-17 → 2026-05-12 · 3 obs

○ 2017-08-22 20:24:58
● 2026-04-17 05:13:22
● 2026-05-12 08:47:58

●NSnina.ns.cloudflare.com2026-04-17 → 2026-05-12 · 3 obs

○ 2017-08-22 20:24:58
● 2026-04-17 05:13:22
● 2026-05-12 08:47:58

○NSns35.eicra.net2015-05-13 → 2016-03-28 · 4 obs

● 2015-05-13 17:00:46
● 2016-03-28 19:07:54
○ 2016-11-07 23:44:58
○ 2026-05-12 08:47:58

○NSns36.eicra.net2015-05-13 → 2016-03-28 · 4 obs

● 2015-05-13 17:00:46
● 2016-03-28 19:07:54
○ 2016-11-07 23:44:58
○ 2026-05-12 08:47:58

○NSns47.eicra.net2016-11-07 → 2016-11-07 · 4 obs

○ 2016-03-28 19:07:54
● 2016-11-07 23:44:58
○ 2017-08-22 20:24:58
○ 2026-05-12 08:47:58

○NSns48.eicra.net2016-11-07 → 2016-11-07 · 4 obs

○ 2016-03-28 19:07:54
● 2016-11-07 23:44:58
○ 2017-08-22 20:24:58
○ 2026-05-12 08:47:58

○MXicu-edu.org2015-05-13 → 2016-11-07 · 4 obs

● 2015-05-13 17:00:46
● 2016-11-07 23:44:58
○ 2017-08-22 20:24:58
○ 2026-05-12 08:47:58

●MXmail.icu-edu.org2026-04-17 → 2026-05-12 · 3 obs

○ 2017-08-22 20:24:58
● 2026-04-17 05:13:22
● 2026-05-12 08:47:58

●A104.21.53.222026-04-17 → 2026-05-12 · 5 obs

○ 2017-08-22 20:24:58
● 2026-04-17 05:13:22
○ 2026-04-21 16:03:00
● 2026-04-24 17:25:48
● 2026-05-12 08:47:58

●A172.67.208.72026-04-17 → 2026-05-12 · 5 obs

○ 2017-08-22 20:24:58
● 2026-04-17 05:13:22
○ 2026-04-21 16:03:00
● 2026-04-24 17:25:48
● 2026-05-12 08:47:58

○A188.114.96.02026-04-21 → 2026-04-21 · 4 obs

○ 2026-04-17 05:13:22
● 2026-04-21 16:03:00
○ 2026-04-24 17:25:48
○ 2026-05-12 08:47:58

○A188.114.97.02026-04-21 → 2026-04-21 · 4 obs

○ 2026-04-17 05:13:22
● 2026-04-21 16:03:00
○ 2026-04-24 17:25:48
○ 2026-05-12 08:47:58

○A216.246.53.762015-05-13 → 2016-03-28 · 4 obs

● 2015-05-13 17:00:46
● 2016-03-28 19:07:54
○ 2016-11-07 23:44:58
○ 2026-05-12 08:47:58

●A2606:4700:3033::ac43:d0072026-04-17 → 2026-05-12 · 5 obs

○ 2017-08-22 20:24:58
● 2026-04-17 05:13:22
○ 2026-04-21 16:03:00
● 2026-04-24 17:25:48
● 2026-05-12 08:47:58

●A2606:4700:3035::6815:35162026-04-17 → 2026-05-12 · 5 obs

○ 2017-08-22 20:24:58
● 2026-04-17 05:13:22
○ 2026-04-21 16:03:00
● 2026-04-24 17:25:48
● 2026-05-12 08:47:58

○A2a06:98c1:3120::2026-04-21 → 2026-04-21 · 4 obs

○ 2026-04-17 05:13:22
● 2026-04-21 16:03:00
○ 2026-04-24 17:25:48
○ 2026-05-12 08:47:58

○A2a06:98c1:3121::2026-04-21 → 2026-04-21 · 4 obs

○ 2026-04-17 05:13:22
● 2026-04-21 16:03:00
○ 2026-04-24 17:25:48
○ 2026-05-12 08:47:58

○A64.202.102.1552016-11-07 → 2016-11-07 · 4 obs

○ 2016-03-28 19:07:54
● 2016-11-07 23:44:58
○ 2017-08-22 20:24:58
○ 2026-05-12 08:47:58

○A69.64.147.382017-08-22 → 2017-08-22 · 4 obs

○ 2016-11-07 23:44:58
● 2017-08-22 20:24:58
○ 2026-04-17 05:13:22
○ 2026-05-12 08:47:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b2.org.afilias-nst.org, d0.org.afilias-nst.org, b0.org.afilias-nst.org	-
icu-edu.org	igor.ns.cloudflare.com, nina.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.59.119

NS records: igor.ns.cloudflare.com, nina.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for icu-edu.org (unsigned zone)

⏱️ Timing

Total: 1896ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.53.22, 172.67.208.7`
AAAA	2	`2606:4700:3033::ac43:d007, 2606:4700:3035::6815:3516`
NS	2	`igor.ns.cloudflare.com, nina.ns.cloudflare.com`
MX	1	`mail.icu-edu.org (pri: 10)`
TXT	1	`v=spf1 -all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`igor.ns.cloudflare.com dns.cloudflare.co`

Analysis

Hierarchy

mail.icu-edu.org has icu-edu.org as its parent.

IP Addresses

icu-edu.org maps to four IP numbers: 2606:4700:3033::ac43:d007, 2606:4700:3035::6815:3516, 104.21.53.22 and 172.67.208.7.

Other host names, for instance www.markatekbilisim.com, aucoindubloc.com, smarttexts.us, www.5626749.com and diariopopular.com.br share IP numbers with icu-edu.org.

Name Servers

Two name servers igor.ns.cloudflare.com and nina.ns.cloudflare.com are delegated to icu-edu.org.

icu-edu.org uses the same name server configuration as other domains, such as unisuamdoc.com.br, vakanser.se, bigboab.com, dwh.wiki and nextstopvalhalla.com.

icu-edu.org at least partially shares name servers with other domains such as modinadar.com, puma.hr, thestorywriter.ca, allfloors-boden.de and castanetkamloops.net.

these name servers are commonly used with the name servers eva.ns.cloudflare.com.

Host names with six IP numbers: Host name igor.ns.cloudflare.com points to 2606:4700:58::adf5:3b77, 2803:f800:50::6ca2:c177, 2a06:98c1:50::ac40:2177, 108.162.193.119, 172.64.33.119 and 173.245.59.119; host name nina.ns.cloudflare.com points to 2606:4700:50::adf5:3a88, 2803:f800:50::6ca2:c088, 2a06:98c1:50::ac40:2088, 108.162.192.136, 172.64.32.136 and 173.245.58.136.

Mail Servers

icu-edu.org is handled by a single mail server, mail.icu-edu.org.

mail.icu-edu.org points to one IP number: 104.248.39.236.

icu-edu.org - robtex.com

icu-edu.org

org

Previously MX for

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`icu-edu.org`

`org`