`cu.edu.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3035::ac43:92a4^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:3993^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.57.147^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.146.164^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.57.147, 172.67.146.164
		IPv6 hints	2606:4700:3035::ac43:92a4, 2606:4700:3036::6815:3993
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=0, name=cloudflare-ech.com

`edu.com`

	DNSSEC	⚠️ Not signed
	A	13.248.188.218^{🇺🇸 Amazon13.248.176.0/20}
	NS	`josephine.ns.cloudflare.com` ⭐
	NS	`sonny.ns.cloudflare.com`
	MX	`inbound-smtp.us-west-2.amazonaws.com` ⭐
	TXT	`google-site-verification=XUwxzRiNw6-GXCUt8i5uonkV-HXKrdWqqUCY59zKzJQ`
	TXT	`v=spf1 include:amazonses.com ~all`
	SOA	`josephine.ns.cloudflare.com`dns@cloudflare.com serial=2409298745

WOT: SAFE (45/100)
rank #113352 globally
rank #49480 in the tld
WOT: SUSPICIOUS (41/100)
📈 Tranco rank: #195,877

Subdomains

ou.cu.edu.com

Same first word

cu.hu

cu.net.au

cu.ws

cu.kiev.ua

cu.ac.mw

cu.coop.py

cu.studio

cu.mi.it

cu.org

cu.support

cu.ac

cu.com.ua

cu.hl.cn

cu.co.th

cu.cx

cu.law

cu.net.tw

cu.by

cu.lt

cu.nl

cu.rs

cu.tc

cu.cz

cu.ru

cu.com.tw

cu.ac.kr

cu.cc.ua

cu.com.py

cu.ma

cu.ie

cu.nu

cu.com.pl

cu.careers

cu.se

cu.edu.kz

cu.edu.la

cu.chat

cu.edu.ge

cu.edu.eg

cu.sk.ca

cu.org.tw

cu.edu

cu.com

cu.zone

cu.uz

cu.si

cu.pl

cu.no

cu.st

cu.net

cu.vg

cu.tn

cu.com.au

cu.to

cu.kz

cu.my

cu.gs

cu.ms

cu.edu.so

cu.edu.ng

cu.be

cu.co

cu.ca

cu.ee

cu.fr

cu.cm

cu.la

cu.am

cu.edu.pk

cu

cu.fm

cu.vc

cu.ac.ae

cu.lu

cu.edu.tr

cu.co.kr

cu.edu.ph

Similar names

uc.com.my

uc.edu.co

uc.wtf

uc.sk

uc.gg

uc.net.ua

uc.network

uc.money

uc.ie

uc.com

uc.edu.pe

uc.se

uc.solutions

uc.com.ua

uc.dk

uc.ee

uc.ma

uc.uy

uc.kr.ua

uc.kiev.ua

uc.rw

uc.works

uc.partners

uc.cn

uc.by

uc.hu

uc.ro

uc.mil

uc.at

uc.rs

uc.ink

uc.wine

uc.schwarz

uc.edu.ve

uc.tel

uc.edu

uc.cl

uc.ac

uc.su

uc.university

uc.cc

uc.fi

uc.my

uc.biz

uc.ac.kr

uc.ag

uc.si

uc.od.ua

uc.com.tw

uc.express

uc.fyi

uc.eu

uc.net

uc.de

uc.tv.br

uc.ly

uc.be

uc.ac.id

uc.edu.py

uc.edu.mx

uc.pt

uc.life

uc.vc

uc.ac.cr

uc.lv

uc.qld.edu.au

uc.org

uc.zone

uc.edu.ph

uc.kz

uc.or.kr

uc.uk

uc.fm

uc.to

uc.chat

uc.no

uc.org.uy

uc.gen.tr

uc.cz

uc.pl

uc.xyz

uc.hk

uc.edu.au

uc.lc

uc.k12.in.us

uc.com.mx

DNS History

39 records (4 active, 35 former)

●A104.21.57.1472026-03-25 → 2026-08-03 · 3 obs

○ 2017-06-09 11:14:32
● 2026-03-25 18:46:12
● 2026-08-03 09:06:24

●A172.67.146.1642026-03-25 → 2026-08-03 · 3 obs

○ 2017-06-09 11:14:32
● 2026-03-25 18:46:12
● 2026-08-03 09:06:24

○A2606:4700:3035::6815:39932026-03-25 → 2026-03-25 · 4 obs

○ 2017-06-09 11:14:32
● 2026-03-25 18:46:12
○ 2026-07-10 09:49:18
○ 2026-08-03 09:06:24

●A2606:4700:3035::ac43:92a42026-03-25 → 2026-08-03 · 3 obs

○ 2017-06-09 11:14:32
● 2026-03-25 18:46:12
● 2026-08-03 09:06:24

●A2606:4700:3036::6815:39932026-07-10 → 2026-08-03 · 3 obs

○ 2026-03-25 18:46:12
● 2026-07-10 09:49:18
● 2026-08-03 09:06:24

○A35.162.44.212016-12-27 → 2016-12-27 · 4 obs

○ 2016-12-26 03:31:36
● 2016-12-27 16:01:22
○ 2017-01-05 19:05:28
○ 2026-08-03 09:06:24

○A35.162.45.92016-12-24 → 2016-12-24 · 4 obs

○ 2016-12-20 04:26:30
● 2016-12-24 13:25:46
○ 2016-12-26 03:31:36
○ 2026-08-03 09:06:24

○A52.10.16.1552015-08-27 → 2015-08-27 · 3 obs

● 2015-08-27 11:20:26
○ 2015-10-08 23:21:30
○ 2026-08-03 09:06:24

○A52.25.91.822016-02-29 → 2016-04-08 · 5 obs

○ 2016-02-20 10:47:54
● 2016-02-29 16:12:34
● 2016-04-08 08:43:36
○ 2016-04-20 01:06:20
○ 2026-08-03 09:06:24

○A52.26.218.1242015-10-26 → 2015-10-26 · 4 obs

○ 2015-10-08 23:21:30
● 2015-10-26 17:32:52
○ 2015-11-16 13:12:40
○ 2026-08-03 09:06:24

○A52.27.223.2502015-10-08 → 2015-10-08 · 4 obs

○ 2015-08-27 11:20:26
● 2015-10-08 23:21:30
○ 2015-10-26 17:32:52
○ 2026-08-03 09:06:24

○A52.27.240.82015-08-27 → 2015-08-27 · 3 obs

● 2015-08-27 11:20:26
○ 2015-10-08 23:21:30
○ 2026-08-03 09:06:24

○A52.32.213.2262016-12-26 → 2016-12-26 · 4 obs

○ 2016-12-24 13:25:46
● 2016-12-26 03:31:36
○ 2016-12-27 16:01:22
○ 2026-08-03 09:06:24

○A52.32.33.1412015-11-16 → 2015-11-16 · 4 obs

○ 2015-10-26 17:32:52
● 2015-11-16 13:12:40
○ 2015-12-27 15:54:32
○ 2026-08-03 09:06:24

○A52.32.34.1102017-01-05 → 2017-01-05 · 4 obs

○ 2016-12-27 16:01:22
● 2017-01-05 19:05:28
○ 2017-06-09 11:14:32
○ 2026-08-03 09:06:24

○A52.34.162.462016-01-02 → 2016-01-12 · 7 obs

○ 2015-12-27 15:54:32
● 2016-01-02 07:15:34
● 2016-01-04 03:31:16
○ 2016-01-06 21:27:36
● 2016-01-12 03:00:18
○ 2016-01-30 07:11:14
○ 2026-08-03 09:06:24

○A52.35.177.2252016-01-06 → 2016-01-06 · 4 obs

○ 2016-01-04 03:31:16
● 2016-01-06 21:27:36
○ 2016-01-12 03:00:18
○ 2026-08-03 09:06:24

○A52.35.195.372015-12-27 → 2015-12-27 · 4 obs

○ 2015-11-16 13:12:40
● 2015-12-27 15:54:32
○ 2016-01-02 07:15:34
○ 2026-08-03 09:06:24

○A52.36.119.872016-04-20 → 2016-09-30 · 5 obs

○ 2016-04-08 08:43:36
● 2016-04-20 01:06:20
● 2016-09-30 00:43:56
○ 2016-10-14 02:09:52
○ 2026-08-03 09:06:24

○A52.36.123.1522016-02-11 → 2016-02-11 · 4 obs

○ 2016-01-30 07:11:14
● 2016-02-11 19:09:16
○ 2016-02-20 10:47:54
○ 2026-08-03 09:06:24

○A52.36.149.182016-10-14 → 2016-12-20 · 5 obs

○ 2016-09-30 00:43:56
● 2016-10-14 02:09:52
● 2016-12-20 04:26:30
○ 2016-12-24 13:25:46
○ 2026-08-03 09:06:24

○A52.36.85.1042016-02-20 → 2016-02-20 · 4 obs

○ 2016-02-11 19:09:16
● 2016-02-20 10:47:54
○ 2016-02-29 16:12:34
○ 2026-08-03 09:06:24

○A52.37.195.1502016-12-27 → 2016-12-27 · 4 obs

○ 2016-12-26 03:31:36
● 2016-12-27 16:01:22
○ 2017-01-05 19:05:28
○ 2026-08-03 09:06:24

○A52.89.100.1262016-10-14 → 2016-12-20 · 5 obs

○ 2016-09-30 00:43:56
● 2016-10-14 02:09:52
● 2016-12-20 04:26:30
○ 2016-12-24 13:25:46
○ 2026-08-03 09:06:24

○A54.148.237.2032016-02-29 → 2016-04-08 · 5 obs

○ 2016-02-20 10:47:54
● 2016-02-29 16:12:34
● 2016-04-08 08:43:36
○ 2016-04-20 01:06:20
○ 2026-08-03 09:06:24

○A54.149.28.42016-02-20 → 2016-02-20 · 4 obs

○ 2016-02-11 19:09:16
● 2016-02-20 10:47:54
○ 2016-02-29 16:12:34
○ 2026-08-03 09:06:24

○A54.149.39.2052015-10-26 → 2015-10-26 · 4 obs

○ 2015-10-08 23:21:30
● 2015-10-26 17:32:52
○ 2015-11-16 13:12:40
○ 2026-08-03 09:06:24

○A54.149.40.1312017-01-05 → 2017-01-05 · 4 obs

○ 2016-12-27 16:01:22
● 2017-01-05 19:05:28
○ 2017-06-09 11:14:32
○ 2026-08-03 09:06:24

○A54.186.164.2252016-01-02 → 2016-01-12 · 7 obs

○ 2015-12-27 15:54:32
● 2016-01-02 07:15:34
● 2016-01-04 03:31:16
○ 2016-01-06 21:27:36
● 2016-01-12 03:00:18
○ 2016-01-30 07:11:14
○ 2026-08-03 09:06:24

○A54.186.184.262016-01-30 → 2016-01-30 · 4 obs

○ 2016-01-12 03:00:18
● 2016-01-30 07:11:14
○ 2016-02-11 19:09:16
○ 2026-08-03 09:06:24

○A54.187.27.312015-12-27 → 2015-12-27 · 4 obs

○ 2015-11-16 13:12:40
● 2015-12-27 15:54:32
○ 2016-01-02 07:15:34
○ 2026-08-03 09:06:24

○A54.187.46.562016-01-06 → 2016-01-06 · 4 obs

○ 2016-01-04 03:31:16
● 2016-01-06 21:27:36
○ 2016-01-12 03:00:18
○ 2026-08-03 09:06:24

○A54.200.204.1522016-12-24 → 2016-12-24 · 4 obs

○ 2016-12-20 04:26:30
● 2016-12-24 13:25:46
○ 2016-12-26 03:31:36
○ 2026-08-03 09:06:24

○A54.201.192.1842016-02-11 → 2016-02-11 · 4 obs

○ 2016-01-30 07:11:14
● 2016-02-11 19:09:16
○ 2016-02-20 10:47:54
○ 2026-08-03 09:06:24

○A54.201.233.1602015-10-08 → 2015-10-08 · 4 obs

○ 2015-08-27 11:20:26
● 2015-10-08 23:21:30
○ 2015-10-26 17:32:52
○ 2026-08-03 09:06:24

○A54.68.4.1332016-01-30 → 2016-01-30 · 4 obs

○ 2016-01-12 03:00:18
● 2016-01-30 07:11:14
○ 2016-02-11 19:09:16
○ 2026-08-03 09:06:24

○A54.68.74.1742016-04-20 → 2016-09-30 · 5 obs

○ 2016-04-08 08:43:36
● 2016-04-20 01:06:20
● 2016-09-30 00:43:56
○ 2016-10-14 02:09:52
○ 2026-08-03 09:06:24

○A54.69.21.2112015-11-16 → 2015-11-16 · 4 obs

○ 2015-10-26 17:32:52
● 2015-11-16 13:12:40
○ 2015-12-27 15:54:32
○ 2026-08-03 09:06:24

○A54.71.194.1902016-12-26 → 2016-12-26 · 4 obs

○ 2016-12-24 13:25:46
● 2016-12-26 03:31:36
○ 2016-12-27 16:01:22
○ 2026-08-03 09:06:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
edu.com	josephine.ns.cloudflare.com, sonny.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.66

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for edu.com (unsigned zone)

⏱️ Timing

Total: 152ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.57.147, 172.67.146.164`
AAAA	2	`2606:4700:3035::ac43:92a4, 2606:4700:3036::6815:3993`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

The domain ou.cu.edu.com falls under the parent cu.edu.com.

IP Addresses

cu.edu.com points to the four IP addresses 104.21.57.147, 172.67.146.164, 2606:4700:3035::ac43:92a4 and 2606:4700:3036::6815:3993.

31-133-7-82.hosteam.pl, 31-133-7-245.hosteam.pl, unused-91-206-26-253.hosteam.pl and two other host names share IP numbers with cu.edu.com.

cu.edu.com - robtex.com

cu.edu.com

edu.com

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

`cu.edu.com`

`edu.com`