cod.edu - dns.ninja

`cod.edu`

DNSSEC	⚠️ Not signed
A	3.209.26.193^{🇺🇸 Amazon3.208.0.0/12 EC2 IAD prefix}
		PTR	`ec2-3-209-26-193.compute-1.amazonaws.com`
A	34.236.193.193^{🇺🇸 Amazon34.224.0.0/12 EC2 Region prefix}
A	52.73.2.219^{🇺🇸 Amazon52.72.0.0/15 EC2 IAD prefix}
NS	`ns1.cod.edu` ⭐
		A	192.203.136.10^{🇺🇸 AS17196192.203.136.0/23 College of duPage}
			PTR	`ns1.cod.edu`
NS	`ns3.cod.edu`
		A	172.93.54.133^{🇺🇸 HIVELOCITY-1172.93.54.0/24 DAL1 - IPv4 Allocation - CID17993}
NS	`rs6000.cod.edu`
		A	192.203.136.1^{🇺🇸 AS17196192.203.136.0/23 College of duPage}
			PTR	`rs6000.cod.edu`
TXT	`have-i-been-pwned-verification=37e56f80f2797d6f051b9fc37c65b9a0`
TXT	`61458B32B463C27F8B147DC35EFE7CF6D070E7F6`
TXT	`m1l3kvnvrmuaq7kv6o26itncjv`
TXT	`google-gws-recovery-domain-verification=67089734`
TXT	`v=spf1 ip4:192.203.136.203 ip4:192.203.136.94 ip4:208.76.56.0/21 ip4:216.146....`
TXT	`duo_sso_verification=lIV2MY81HrWIPqGhKQYJsohZKTgUrv0yKkSLg2h5JrO2nLVkBcfZBbTA...`
TXT	`google-site-verification=YKdFPZVARt4OJQa1vMF8r9bJ6kSe50B1fhPzMRzwOrk`
TXT	`apple-domain-verification=ZSKHbUHjtrBz1bl0`
TXT	`adobe-idp-site-verification=e26a5719921cb9212fd7e8821aaeb6ea3c7db879c309ad504...`
TXT	`jamf-site-verification=0bH-6R0YK9hbhsjlHW901w`
TXT	`autodesk-domain-verification=_jPVCZ5GlDPdhEAxK2UF`
TXT	`MS=ms14419178`
TXT	`canva-site-verification=xkEYDJmou9cXaYuqlE_akQ`
SOA	`ns1.cod.edu`root@ns1.cod.edu 2026-07-22 #1

`edu`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.edu-servers.net` ⭐
	NS	`b.edu-servers.net`
	NS	`c.edu-servers.net`
	NS	`d.edu-servers.net`
	NS	`e.edu-servers.net`
	NS	`f.edu-servers.net`
	NS	`g.edu-servers.net`
	NS	`h.edu-servers.net`
	NS	`i.edu-servers.net`
	NS	`j.edu-servers.net`
	NS	`k.edu-servers.net`
	NS	`l.edu-servers.net`
	NS	`m.edu-servers.net`
	SOA	`a.edu-servers.net`nstld@verisign-grs.com serial=1785477627

rank #25500 globally
rank #586 in the tld
WOT: SAFE (94/100)
📈 Tranco rank: #43,878

Subdomains

dyn215-05.cod.edu

sigalos2.cod.edu

dyn167-05.cod.edu

dyn52-05.cod.edu

dyn179-05.cod.edu

chaparrals.cod.edu

opentable.cod.edu

dyn150-05.cod.edu

cdstats.cod.edu

ssmobile2.cod.edu

dyn170-05.cod.edu

dyn184-05.cod.edu

dyn213-05.cod.edu

dyn252-03.cod.edu

dyn171-05.cod.edu

dyn74-05.cod.edu

sssqlserv.cod.edu

dyn130-05.cod.edu

dyn251-03.cod.edu

mmspolycom.cod.edu

dyn47-05.cod.edu

ipfreedom.cod.edu

dyn92-05.cod.edu

dyn70-05.cod.edu

dyn112-05.cod.edu

dyn197-05.cod.edu

master-redirect.cod.edu

dyn93-05.cod.edu

dyn114-05.cod.edu

dyn233-05.cod.edu

dyn188-05.cod.edu

dyn196-05.cod.edu

dyn230-05.cod.edu

iccb1.cod.edu

dyn131-05.cod.edu

dyn149-05.cod.edu

opentable-wheat.cod.edu

dyn189-05.cod.edu

dyn95-05.cod.edu

gatekeeper.cod.edu

archive.cod.edu

dyn217-05.cod.edu

dyn46-05.cod.edu

dyn129-05.cod.edu

dyn211-05.cod.edu

dyn57-03.cod.edu

dyn250-05.cod.edu

vpn.cod.edu

tickets.cod.edu

dyn164-05.cod.edu

dyn176-05.cod.edu

dyn231-05.cod.edu

ad3.cod.edu

dyn139-05.cod.edu

www.cod.edu

bbapp.cod.edu

dyn218-05.cod.edu

dyn162-05.cod.edu

dyn81-05.cod.edu

sspixfw.cod.edu

dyn98-05.cod.edu

dyn137-05.cod.edu

dyn134-05.cod.edu

dyn89-05.cod.edu

nuance.cod.edu

suselinux.cod.edu

dyn73-05.cod.edu

dyn78-05.cod.edu

dyn166-05.cod.edu

dyn228-05.cod.edu

dyn246-03.cod.edu

sswebui5.cod.edu

dyn86-05.cod.edu

sbcb1remworker2.cod.edu

dyn102-05.cod.edu

nat-vlan2701.cod.edu

dyn100-05.cod.edu

weather.cod.edu

falink.cod.edu

dyn44-03.cod.edu

dyn226-05.cod.edu

dyn183-05.cod.edu

dyn195-05.cod.edu

dyn66-05.cod.edu

dyn85-05.cod.edu

codpublic.cod.edu

davebbtest2.cod.edu

dyn209-05.cod.edu

dyn253-03.cod.edu

dyn87-05.cod.edu

dyn236-05.cod.edu

dyn172-05.cod.edu

tmpdev.cod.edu

tmpprod.cod.edu

edge2.cod.edu

mail.cod.edu

aacc-vip.cod.edu

dyn97-05.cod.edu

dyn64-05.cod.edu

dyn222-05.cod.edu

Same first word

cod.lt

cod.li

cod.or.kr

cod.tv

cod.ooo

cod.wiki

cod.guide

cod.elk.pl

cod.tokyo

cod.lv

cod.rs

cod.is

cod.mx

cod.org.il

cod.eu

cod.io

cod.szczecin.pl

cod.pl

cod.co.il

cod.in

cod.gift

cod.me

cod.hu

cod.com.tr

cod.de

cod.org

cod.top

cod.cc

cod.at

cod.bet

cod.cz

cod.com.ve

cod.net

cod.se

cod.bg

cod.com.mx

cod.id

cod.lu

cod.im

cod.be

cod.pro

cod.cl

cod.com.pl

cod.ag

cod.al

cod.co

cod.ee

cod.asia

cod.gg

cod.ru

cod.gold

cod.com.ua

cod.partners

cod.info

cod.co.th

cod.no

cod.es

cod.nl

cod.com

cod.fish

cod.network

cod.email

cod.expert

cod.ae

cod.ink

cod.ro

cod.com.br

cod.edu

cod.today

cod.zone

cod.ceo

cod.by

cod.us

cod.dk

cod.la

cod.life

cod.black

cod.autos

Similar names

cdo.wtf

dco.mx

doc.moscow

ocd.ovh

cdo.be

odc.org.uk

doc.ru

dco.org

ocd.ca

doc.academy

cdo.gov

doc.tokyo

doc.co.bw

doc.com

ocd.cleaning

cdo.mx

cdo.no

cdo.design

ocd.no

doc.build

cdo.org

ocd.sg

ocd.hu

dco.ca

cdo.nyc

doc.gov.lk

ocd.tm.fr

cdo.ru

odc.ir

odc.in

dco.jp

dco.com.pl

odc.govt.nz

cdo.bplaced.net

ocd.us

doc.info

doc.page

doc.so

doc.fi

doc.tel

cdo.io

ocd.it

ocd.net

odc.tn

odc.co.ke

ocd.or.at

odc.me

odc.co

doc.place

cdo.org.ua

odc.fr

ocd.co.jp

doc.sg

doc.bz.it

doc.space

doc.tax

cdo.in

cdo.ro

doc.fish

odc.com

doc.be

dco.eu

cdo.it

ocd.expert

doc.toys

ocd.be

ocd.com.ve

dco.es

cdo.pt

ocd.ro

doc.mobi

doc.cm

ocd.fyi

ocd.ru

doc.by

odc.ae

doc.su

ocd.eu

cdo.kz

dco.at

DNS History

10 records (6 active, 4 former)

●NSns1.cod.edu2015-08-31 → 2026-07-31 · 2 obs

● 2015-08-31 02:25:16
● 2026-07-31 06:00:58

●NSns3.cod.edu2026-02-14 → 2026-07-31 · 3 obs

○ 2015-08-31 02:25:16
● 2026-02-14 18:47:16
● 2026-07-31 06:00:58

●NSrs6000.cod.edu2015-08-31 → 2026-07-31 · 2 obs

● 2015-08-31 02:25:16
● 2026-07-31 06:00:58

○MXedge1.cod.edu2015-08-31 → 2018-09-18 · 4 obs

● 2015-08-31 02:25:16
● 2018-09-18 03:48:12
○ 2020-12-10 18:04:50
○ 2026-07-31 06:00:58

○MXedge2.cod.edu2015-08-31 → 2018-09-18 · 4 obs

● 2015-08-31 02:25:16
● 2018-09-18 03:48:12
○ 2020-12-10 18:04:50
○ 2026-07-31 06:00:58

○MXfortimail.cod.edu2020-12-10 → 2026-07-31 · 13 obs

○ 2018-09-18 03:48:12
● 2020-12-10 18:04:50
● 2022-01-02 04:10:58
○ 2026-07-20 00:02:08
● 2026-07-20 12:32:44
○ 2026-07-21 12:03:04
● 2026-07-21 20:02:04
○ 2026-07-23 14:17:10
● 2026-07-27 00:26:18
○ 2026-07-31 03:31:10
● 2026-07-31 04:05:28
○ 2026-07-31 06:00:54
○ 2026-07-31 06:00:58

○A192.203.136.2392015-08-31 → 2022-01-02 · 4 obs

● 2015-08-31 02:25:16
● 2022-01-02 04:10:58
○ 2026-02-14 18:47:16
○ 2026-07-31 06:00:58

●A3.209.26.1932026-02-14 → 2026-07-31 · 15 obs

○ 2022-01-02 04:10:58
● 2026-02-14 18:47:16
○ 2026-07-14 07:19:56
● 2026-07-14 08:48:54
○ 2026-07-14 19:10:44
● 2026-07-15 08:16:10
○ 2026-07-18 09:27:46
● 2026-07-20 00:02:08
○ 2026-07-20 12:32:44
● 2026-07-21 12:03:04
○ 2026-07-23 14:17:10
● 2026-07-23 16:49:38
○ 2026-07-31 03:31:10
● 2026-07-31 06:00:54
● 2026-07-31 06:00:58

●A34.236.193.1932026-02-14 → 2026-07-31 · 15 obs

●A52.73.2.2192026-02-14 → 2026-07-31 · 15 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
edu	m.edu-servers.net, k.edu-servers.net, a.edu-servers.net, i.edu-servers.net...	26 records
cod.edu	rs6000.cod.edu, ns1.cod.edu, ns3.cod.edu	3 records

✅ Authoritative Response

Server:172.93.54.133

NS records: rs6000.cod.edu, ns1.cod.edu, ns3.cod.edu

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cod.edu (unsigned zone)

⏱️ Timing

Total: 330ms | Queries: -

📄 Records

Type	Count	Sample Data
A	3	`3.209.26.193, 34.236.193.193...`
MX	1	`fortimail.cod.edu (pri: 0)`
TXT	13	`v=spf1 ip4:192.203.136.203 ip4:192.203.1, google-site-verification=YKdFPZVARt4OJQa...`
SOA	1	`ns1.cod.edu root.ns1.cod.edu`

📌 Glue Records Collected

Total: 29

In-bailiwick: 3 (rs6000.cod.edu, ns1.cod.edu, ns3.cod.edu)

Out-of-bailiwick: 26 (m.edu-servers.net, l.edu-servers.net, k.edu-servers.net...)

Analysis

Hierarchy

cod.edu serves as the parent of dyn215-05.cod.edu, sigalos2.cod.edu, dyn167-05.cod.edu, dyn52-05.cod.edu, dyn179-05.cod.edu and hundreds of other host names.

IP Addresses

cod.edu has three IP addresses: 3.209.26.193, 34.236.193.193 and 52.73.2.219.

asurams.edu, bristolcc.edu, webster.edu plus two other host names have IP numbers in common with cod.edu.

Name Servers

cod.edu carries NS records delegating to ns1.cod.edu, ns3.cod.edu and rs6000.cod.edu.

cod.edu shares at least some of its name servers with domains including dupage.edu, 136.203.192.in-addr.arpa and 137.203.192.in-addr.arpa

ns1.cod.edu points to 192.203.136.10; ns3.cod.edu points to 172.93.54.133; rs6000.cod.edu points to 192.203.136.1 — each hostname maps to exactly one IP address.