`devday.zero.ou.edu`

DNSSEC	⚠️ Not signed
A	156.110.247.18^{🇺🇸 OUHSC-EDU156.110.240.0/20 University of Oklahoma HSC (UNIVER-196)}
		PTR	`academictech.ou.edu`
		PTR	`askit.ou.edu`
		PTR	`aviation.ou.edu`
		PTR	`biosurvey.ou.edu`
		PTR	`choirs.ou.edu`
		PTR	`csj.ou.edu`
		PTR	`ecsfaq.ou.edu`
		PTR	`geosciences.ou.edu`
		PTR	`groups.ou.edu`
		PTR	`history.ou.edu`
		PTR	`hydros.ou.edu`
		PTR	`irrsas.ou.edu`
		PTR	`judaicstudies.ou.edu`
		PTR	`minerva.ou.edu`
		PTR	`modlang.ou.edu`
		PTR	`nitroso.ou.edu`
		PTR	`open.ou.edu`
		PTR	`oubound.ou.edu`
		PTR	`ozone.ou.edu`
		PTR	`psc.ou.edu`
		PTR	`rels.ou.edu`
		PTR	`risk.ou.edu`
		PTR	`soc.ou.edu`
		PTR	`socialwork.ou.edu`
		PTR	`spam.ou.edu`
		PTR	`srtc.ou.edu`
		PTR	`structuralbiology-cobre.ou.edu`
		PTR	`support.ou.edu`
		PTR	`survey.ou.edu`
		PTR	`zarrowinstitute.ou.edu`
		PTR	`ailr.law.ou.edu`
		PTR	`www.microscopy.ou.edu`
		PTR	`www.music.ou.edu`
		PTR	`www.thousandsstrong.ou.edu`
		PTR	`devday.zero.ou.edu`

`zero.ou.edu`

DNSSEC

⚠️ Not signed

WOT: SAFE (76/100)
WOT: SAFE (89/100)

PTR for

18.247.110.156.in-addr.arpa

Same first word

devday.co.uk

devday.be

devday.in.ua

devday.de

devday.in

devday.kr

devday.it

devday.ru

devday.io

devday.org

devday.com

devday.xyz

Similar names

davyde.com

aveddy.blogspot.com

devady.com

adydev.com

evaddy.com

daydev.org

aveddy.com

daevyd.com

daveyd.com

edydav.com

daydev.io

daveyd.net

DNS History

2 records (1 active, 1 former)

○A129.15.0.2302015-02-22 → 2015-02-22 · 3 obs

● 2015-02-22 09:42:20
○ 2015-12-22 12:41:40
○ 2026-08-14 00:02:28

●A156.110.247.182015-12-22 → 2026-08-14 · 3 obs

○ 2015-02-22 09:42:20
● 2015-12-22 12:41:40
● 2026-08-14 00:02:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
edu	l.edu-servers.net, f.edu-servers.net, j.edu-servers.net, d.edu-servers.net...	-
ou.edu	ns-472.awsdns-59.com, ns-937.awsdns-53.net, ns-1598.awsdns-07.co.uk, ns-1284.awsdns-32.org	-

✅ Authoritative Response

Server:205.251.195.169

NS records: ns-472.awsdns-59.com, ns-937.awsdns-53.net, ns-1598.awsdns-07.co.uk, ns-1284.awsdns-32.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ou.edu (unsigned zone)

⏱️ Timing

Total: 223ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`156.110.247.18`

Analysis

IP Addresses

devday.zero.ou.edu has exactly one IP address — 156.110.247.18.

studentmedia.ou.edu, groups.ou.edu, socialwork.ou.edu plus two other host names have IP numbers in common with devday.zero.ou.edu.

devday.zero.ou.edu - robtex.com