ou.cu.edu.com - robtex.com

ou.cu.edu.com

DNSSEC⚠️ Not signed
A2606:4700:3035::ac43:92a4🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::6815:3993🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.57.147Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.146.164🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.57.147, 172.67.146.164
IPv6 hints2606:4700:3035::ac43:92a4, 2606:4700:3036::6815:3993
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=62, name=cloudflare-ech.com

cu.edu.com

DNSSEC⚠️ Not signed
A2606:4700:3035::ac43:92a4🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::6815:3993🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.57.147Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.146.164🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.57.147, 172.67.146.164
IPv6 hints2606:4700:3035::ac43:92a4, 2606:4700:3036::6815:3993
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=62, name=cloudflare-ech.com
WOT: SAFE (50/100)
WOT: SAFE (45/100)

Subdomains

www.ou.cu.edu.com

Same first word

ou.hu
ou.am
ou.gd
ou.ms
ou.pl
ou.guru
ou.com
ou.com.ua
ou.business
ou.be
ou.com.br
ou.lt
ou.edu.vn
ou.wtf
ou.io
ou.biz
ou.ac
ou.dk
ou.net
ou.school
ou.org
ou.su
ou.network
ou.cl
ou.lc
ou.city
ou.ac.uk
ou.kz
ou.je
ou.email
ou.fyi
ou.cc
ou.football
ou.al
ou.no
ou.edu
ou.cz
ou.gg
ou.si
ou.org.cn
ou.com.mx
ou.nl
ou.ru
ou.de
ou.sk
ou.eu
ou.la
ou.ca
ou.co
ou.edu.ly

Similar names

uo.cx
uo.sg
uo.ru
uo.edu.cu
uo.dk
uo.co
uo.cl
uo.co.za
uo.com.tw
uo.ro
uo.com
uo.cc
uo.net
uo.no
uo.eu
uo.co.kr
uo.de
uo.io
uo.ca
uo.cn
uo.su
uo.do
uo.ms
uo.fyi
uo.pl
uo.org
uo.ae
uo.hu
uo.kz
uo.edu.pk
uo.com.ua
uo.network
uo.ee
uo.lt
uo.cz
uo.sk
uo.be
uo.chat
uo.biz
uo.lv
uo.edu.mx
uo.fi
uo.co.uk

DNS History

25 records (4 active, 21 former)

20162017201820192020202120222023202420252026A104.21.57.147172.67.146.1642606:4700:3035::ac43:92a42606:4700:3036::6815:39932606:4700:3035::6815:399352.25.91.8252.26.248.8852.27.162.3552.27.223.25052.32.45.7452.34.162.4652.35.195.3752.36.119.8752.36.149.1852.36.85.10452.89.100.12654.148.237.20354.149.28.454.186.122.16354.186.164.22554.187.27.3154.187.39.8254.201.233.16054.218.21.6654.68.74.174
●A104.21.57.1472026-03-25 → 2026-08-04 · 3 obs
○ 2016-11-09 07:46:14
● 2026-03-25 18:46:12
● 2026-08-04 06:06:22
●A172.67.146.1642026-03-25 → 2026-08-04 · 3 obs
○ 2016-11-09 07:46:14
● 2026-03-25 18:46:12
● 2026-08-04 06:06:22
○A2606:4700:3035::6815:39932026-03-25 → 2026-03-25 · 4 obs
○ 2016-11-09 07:46:14
● 2026-03-25 18:46:12
○ 2026-07-10 09:49:34
○ 2026-08-04 06:06:22
●A2606:4700:3035::ac43:92a42026-03-25 → 2026-08-04 · 3 obs
○ 2016-11-09 07:46:14
● 2026-03-25 18:46:12
● 2026-08-04 06:06:22
●A2606:4700:3036::6815:39932026-07-10 → 2026-08-04 · 3 obs
○ 2026-03-25 18:46:12
● 2026-07-10 09:49:34
● 2026-08-04 06:06:22
○A52.25.91.822016-03-03 → 2016-03-13 · 5 obs
○ 2016-02-18 01:52:06
● 2016-03-03 14:07:24
● 2016-03-13 10:47:44
○ 2016-05-29 04:53:12
○ 2026-08-04 06:06:22
○A52.26.248.882015-08-08 → 2015-08-08 · 3 obs
● 2015-08-08 20:56:24
○ 2015-09-21 19:45:38
○ 2026-08-04 06:06:22
○A52.27.162.352016-01-16 → 2016-01-16 · 4 obs
○ 2015-12-24 08:46:14
● 2016-01-16 04:29:56
○ 2016-01-17 21:24:36
○ 2026-08-04 06:06:22
○A52.27.223.2502015-09-21 → 2015-10-13 · 5 obs
○ 2015-08-08 20:56:24
● 2015-09-21 19:45:38
● 2015-10-13 03:19:38
○ 2015-11-15 07:01:12
○ 2026-08-04 06:06:22
○A52.32.45.742015-11-15 → 2015-11-15 · 4 obs
○ 2015-10-13 03:19:38
● 2015-11-15 07:01:12
○ 2015-12-24 08:46:14
○ 2026-08-04 06:06:22
○A52.34.162.462016-01-17 → 2016-01-17 · 4 obs
○ 2016-01-16 04:29:56
● 2016-01-17 21:24:36
○ 2016-02-18 01:52:06
○ 2026-08-04 06:06:22
○A52.35.195.372015-12-24 → 2015-12-24 · 4 obs
○ 2015-11-15 07:01:12
● 2015-12-24 08:46:14
○ 2016-01-16 04:29:56
○ 2026-08-04 06:06:22
○A52.36.119.872016-05-29 → 2016-09-27 · 5 obs
○ 2016-03-13 10:47:44
● 2016-05-29 04:53:12
● 2016-09-27 07:55:54
○ 2016-11-09 07:46:14
○ 2026-08-04 06:06:22
○A52.36.149.182016-11-09 → 2016-11-09 · 4 obs
○ 2016-09-27 07:55:54
● 2016-11-09 07:46:14
○ 2026-03-25 18:46:12
○ 2026-08-04 06:06:22
○A52.36.85.1042016-02-18 → 2016-02-18 · 4 obs
○ 2016-01-17 21:24:36
● 2016-02-18 01:52:06
○ 2016-03-03 14:07:24
○ 2026-08-04 06:06:22
○A52.89.100.1262016-11-09 → 2016-11-09 · 4 obs
○ 2016-09-27 07:55:54
● 2016-11-09 07:46:14
○ 2026-03-25 18:46:12
○ 2026-08-04 06:06:22
○A54.148.237.2032016-03-03 → 2016-03-13 · 5 obs
○ 2016-02-18 01:52:06
● 2016-03-03 14:07:24
● 2016-03-13 10:47:44
○ 2016-05-29 04:53:12
○ 2026-08-04 06:06:22
○A54.149.28.42016-02-18 → 2016-02-18 · 4 obs
○ 2016-01-17 21:24:36
● 2016-02-18 01:52:06
○ 2016-03-03 14:07:24
○ 2026-08-04 06:06:22
○A54.186.122.1632015-11-15 → 2015-11-15 · 4 obs
○ 2015-10-13 03:19:38
● 2015-11-15 07:01:12
○ 2015-12-24 08:46:14
○ 2026-08-04 06:06:22
○A54.186.164.2252016-01-17 → 2016-01-17 · 4 obs
○ 2016-01-16 04:29:56
● 2016-01-17 21:24:36
○ 2016-02-18 01:52:06
○ 2026-08-04 06:06:22
○A54.187.27.312015-12-24 → 2015-12-24 · 4 obs
○ 2015-11-15 07:01:12
● 2015-12-24 08:46:14
○ 2016-01-16 04:29:56
○ 2026-08-04 06:06:22
○A54.187.39.822016-01-16 → 2016-01-16 · 4 obs
○ 2015-12-24 08:46:14
● 2016-01-16 04:29:56
○ 2016-01-17 21:24:36
○ 2026-08-04 06:06:22
○A54.201.233.1602015-09-21 → 2015-10-13 · 5 obs
○ 2015-08-08 20:56:24
● 2015-09-21 19:45:38
● 2015-10-13 03:19:38
○ 2015-11-15 07:01:12
○ 2026-08-04 06:06:22
○A54.218.21.662015-08-08 → 2015-08-08 · 3 obs
● 2015-08-08 20:56:24
○ 2015-09-21 19:45:38
○ 2026-08-04 06:06:22
○A54.68.74.1742016-05-29 → 2016-09-27 · 5 obs
○ 2016-03-13 10:47:44
● 2016-05-29 04:53:12
● 2016-09-27 07:55:54
○ 2016-11-09 07:46:14
○ 2026-08-04 06:06:22

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, f.gtld-servers.net, c.gtld-servers.net, l.gtld-servers.net...-
edu.comjosephine.ns.cloudflare.com, sonny.ns.cloudflare.com12 records

✅ Authoritative Response

Server:172.64.34.64

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: 123ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.146.164, 104.21.57.147
AAAA22606:4700:3036::6815:3993, 2606:4700:3035::ac43:92a4
HTTPS1{"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

ou.cu.edu.com is a parent domain of www.ou.cu.edu.com.

IP Addresses

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

Additional host names — llb.pu.edu.com, unused-31-133-7-161.hosteam.pl, unused-31-133-0-196.hosteam.pl and two others — share IP numbers with ou.cu.edu.com.