`ndu.edu`

DNSSEC	⚠️ Not signed
NS	`ns1.bdm.microsoftonline.com` ⭐
		A	2603:1061:0:700::d0^{🇺🇸 Microsoft2603:1000::/25 MICROSOFT}
			PTR	`ns1-208.azure-dns.com`
		A	13.107.236.208^{🇺🇸 Microsoft13.104.0.0/14 MICROSOFT}
			PTR	`ns1-208.azure-dns.com`
NS	`ns2.bdm.microsoftonline.com`
		A	2620:1ec:8ec:700::d0^{🇺🇸 Microsoft2620:1ec::/36 MICROSOFT}
			PTR	`ns2-208.azure-dns.net`
		A	150.171.21.208^{🇺🇸 Microsoft150.171.0.0/16 MICROSOFT}
			PTR	`ns2-208.azure-dns.net`
NS	`ns3.bdm.microsoftonline.com`
		A	2a01:111:4000:700::d0^{🇬🇧 Microsoft2a01:111:4000::/36}
			PTR	`ns3-208.azure-dns.org`
		A	204.14.183.208^{🇺🇸 Microsoft204.14.180.0/22}
			PTR	`ns3-208.azure-dns.org`
NS	`ns4.bdm.microsoftonline.com`
		A	2620:1ec:bda:700::d0^{🇺🇸 Microsoft2620:1ec::/36 MICROSOFT}
			PTR	`ns4-208.azure-dns.info`
		A	208.84.5.208^{🇺🇸 Microsoft208.84.0.0/21 MICROSOFT}
			PTR	`ns4-208.azure-dns.info`
MX	`ndu-edu.mail.eo.outlook.com` ⭐
		A	2a01:111:f403:c901::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bl2pr04cu00201.inbound.protection.outlook.com`
		A	2a01:111:f403:c902::3^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sj0pr03cu01703.inbound.protection.outlook.com`
		A	2a01:111:f403:c902::5^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sj2pr05cu00505.inbound.protection.outlook.com`
		A	2a01:111:f403:c91d::b^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-mw2pr02cu00603.inbound.protection.outlook.com`
		A	52.101.9.0^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bl2pr02cu00100.inbound.protection.outlook.com`
		A	52.101.50.4^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-co1pr03cu00404.inbound.protection.outlook.com`
		A	52.101.50.10^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-mw2pr02cu00502.inbound.protection.outlook.com`
		A	52.101.194.0^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-ch5pr02cu00200.inbound.protection.outlook.com`
TXT	`MS=ms66756854`
TXT	`2cb34vlwksgz2bg3cddz18ngxqy3r013`
TXT	`_4kn4sxk2zvzwf6ncdmg1cd4jlh05flp`
TXT	`j0fz981wz0kk4pp3ddvlpn15mh3m2wbs`
TXT	`apple-domain-verification=GPVAHhpw7dEdHopB`
TXT	`MS=F9323FDAD99CED8F9ABC0DA3B6D29A06670AE9DC`
TXT	`docusign=d50b487c-8c2a-4f96-9807-2a582b98734c`
TXT	`openai-domain-verification=dv-cVPdoMLw28SveJ7inRZyI7Ca`
TXT	`smartsheet-gov-site-validation=29W2iXvHo_Vs2NHZeR9WYA3nCbubCgjG`
TXT	`CsIanUJZllMB5foymvEaVZzkJMK9b/BPbQBwrLpdPpvdLOUesVjOgsH3rgdsXTpN1axd0SfdDkh+l...`
TXT	`yKQYmsXM9XomfmLwG1H7U9fFbl7o0l6hiZfnH+n29urmBkG7qTGtlkq+XHA7Vfn28qKPZqVCwZc0u...`
TXT	`adobe-idp-site-verification=e5f07cb01684e12a5352726826ecaed23c55c24dfad058829...`
TXT	`mscid=W8Dk8FDsHshoaBiiAAsu5+3slIYBS8Gjo9K1iOo/fwnUNo6KJ2641POuUKWq0PZAScwYVfJ...`
TXT	`v=spf1 ip4:216.21.18.221 ip4:216.21.18.40 ip4:216.21.18.208 include:spf.prote...`
SOA	`ns1.bdm.microsoftonline.com`azuredns-hostmaster@microsoft.com serial=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=1772435516

rank #17463 globally
rank #467 in the tld
WOT: SAFE (96/100)
📈 Tranco rank: #54,255

PTR for

140.20.248.24.in-addr.arpa

53.20.248.24.in-addr.arpa

62.20.248.24.in-addr.arpa

95.20.248.24.in-addr.arpa

188.20.248.24.in-addr.arpa

68.20.248.24.in-addr.arpa

231.20.248.24.in-addr.arpa

87.20.248.24.in-addr.arpa

245.20.248.24.in-addr.arpa

23.20.248.24.in-addr.arpa

16.20.248.24.in-addr.arpa

227.20.248.24.in-addr.arpa

223.20.248.24.in-addr.arpa

15.20.248.24.in-addr.arpa

52.17.248.24.in-addr.arpa

127.20.248.24.in-addr.arpa

174.20.248.24.in-addr.arpa

28.20.248.24.in-addr.arpa

64.20.248.24.in-addr.arpa

176.20.248.24.in-addr.arpa

217.20.248.24.in-addr.arpa

237.20.248.24.in-addr.arpa

37.20.248.24.in-addr.arpa

205.20.248.24.in-addr.arpa

164.20.248.24.in-addr.arpa

239.20.248.24.in-addr.arpa

183.20.248.24.in-addr.arpa

245.18.248.24.in-addr.arpa

102.20.248.24.in-addr.arpa

71.20.248.24.in-addr.arpa

210.18.248.24.in-addr.arpa

80.20.248.24.in-addr.arpa

46.20.248.24.in-addr.arpa

94.20.248.24.in-addr.arpa

Subdomains

icollege.ndu.edu

jfsc.ndu.edu

inet003.ndu.edu

ndupress.ndu.edu

www.ndu.edu

calendar.ndu.edu

cco.ndu.edu

digitalndulibrary.ndu.edu

es.ndu.edu

Same first word

ndu.dk

ndu.ac.jp

ndu.edu.az

ndu.edu.ua

ndu.org.nz

ndu.be

ndu.edu

ndu.co.uk

ndu.ac.ug

ndu.pl

ndu.gov.ua

ndu.ro

ndu.in

ndu.no

ndu.it

ndu.info

ndu.edu.ng

ndu.ru

ndu.ac.ke

ndu.es

ndu.vn

ndu.cz

ndu.kr

ndu.net.br

ndu.ac.at

ndu.net

ndu.co

ndu.edu.sa

ndu.cl

ndu.cn

ndu.edu.lb

ndu.at

ndu.us

ndu.com

ndu.org

ndu.edu.pk

ndu.se

ndu.edu.tw

ndu.eu

Similar names

dnu.edu.ua

udn.ro

dun.tv

nud.ro

nud.in.net

und.ms

udn.net

und.gr

dun.pl

nud.co.uk

dnu.com

nud.be

und.red

udn.org

dun.com

dnu.co.uk

und.su

nud.ge

dun.nl

udn.su

dun.es

dnu.eu

dun.ro

dnu.jp

und.sk

nud.ca

und.com.ua

dnu.dp.ua

und.org.tr

udn.in

nud.ir

udn.vn

und.cn

nud.me

dnu.at

und.jetzt

dun.nu

udn.co.za

nud.li

und.com

dnu.edu.vn

dun.be

nud.co.jp

dnu.in.ua

dun.jp

dnu.vn

und.hu

dun.net

nud.in

und.cz

dun.so

dnu.us

nud.pl

dun.cz

und.nl

und.com.tr

dun.kim

nud.es

udn.pl

udn.today

dnu.de

nud.com

dun.us

udn.be

und.world

dun.de

und.so

dnu.com.mx

und.ch

nud.at

dnu.org.uk

dnu.co.kr

dnu.dk

udn.de

dun.in

udn.co

dun.at

udn.ch

nud.jp

und.jp

und.pink

und.org

nud.co.za

udn.ne.jp

udn.ac.id

nud.us

udn.com.tw

und.at

dnu.pl

und.co

nud.cn

dun.eu

dnu.es

dnu.ca

dun.name

dun.cn

dun.fr

und.cc

nud.ch

und.co.za

dun.se

dun.info

nud.su

und.web.tr

und.ca

DNS History

16 records (5 active, 11 former)

○NSdnsauth1.sys.gtei.net2009-07-02 → 2018-08-07 · 4 obs

● 2009-07-02 02:50:56
● 2018-08-07 05:15:12
○ 2018-09-18 02:30:42
○ 2026-03-14 23:22:18

○NSdnsauth2.sys.gtei.net2009-07-02 → 2018-08-07 · 4 obs

● 2009-07-02 02:50:56
● 2018-08-07 05:15:12
○ 2018-09-18 02:30:42
○ 2026-03-14 23:22:18

○NSdnsauth3.sys.gtei.net2009-07-02 → 2018-08-07 · 4 obs

● 2009-07-02 02:50:56
● 2018-08-07 05:15:12
○ 2018-09-18 02:30:42
○ 2026-03-14 23:22:18

○NSndudns01.ndu.edu2009-07-02 → 2021-04-03 · 8 obs

● 2009-07-02 02:50:56
● 2015-10-10 13:31:00
○ 2015-10-26 09:42:18
○ 2016-02-05 19:20:26
● 2016-04-04 04:34:46
● 2021-04-03 22:18:46
○ 2026-02-15 04:38:24
○ 2026-03-14 23:22:18

○NSndudns02.ndu.edu2009-07-02 → 2021-04-03 · 6 obs

● 2009-07-02 02:50:56
● 2016-02-05 19:20:26
○ 2016-04-04 04:34:46
● 2021-04-03 22:18:46
○ 2026-02-15 04:38:24
○ 2026-03-14 23:22:18

●NSns1.bdm.microsoftonline.com2026-02-15 → 2026-03-14 · 3 obs

○ 2021-04-03 22:18:46
● 2026-02-15 04:38:24
● 2026-03-14 23:22:18

●NSns2.bdm.microsoftonline.com2026-02-15 → 2026-03-14 · 3 obs

○ 2021-04-03 22:18:46
● 2026-02-15 04:38:24
● 2026-03-14 23:22:18

●NSns3.bdm.microsoftonline.com2026-02-15 → 2026-03-14 · 3 obs

○ 2021-04-03 22:18:46
● 2026-02-15 04:38:24
● 2026-03-14 23:22:18

●NSns4.bdm.microsoftonline.com2026-02-15 → 2026-03-14 · 3 obs

○ 2021-04-03 22:18:46
● 2026-02-15 04:38:24
● 2026-03-14 23:22:18

○MXjfscdns01.ndu.edu2009-07-02 → 2009-07-02 · 3 obs

● 2009-07-02 02:50:56
○ 2015-07-25 10:18:12
○ 2026-03-14 23:22:18

○MXms78783564.msv1.invalid2017-10-15 → 2017-10-15 · 4 obs

○ 2016-04-04 04:34:46
● 2017-10-15 20:32:30
○ 2017-10-24 04:46:36
○ 2026-03-14 23:22:18

●MXndu-edu.mail.eo.outlook.com2021-04-03 → 2026-03-14 · 3 obs

○ 2019-01-19 18:30:50
● 2021-04-03 22:18:46
● 2026-03-14 23:22:18

○MXndugway01.ndu.edu2009-07-02 → 2019-01-19 · 4 obs

● 2009-07-02 02:50:56
● 2019-01-19 18:30:50
○ 2021-04-03 22:18:46
○ 2026-03-14 23:22:18

○MXndugway02.ndu.edu2009-07-02 → 2019-01-19 · 4 obs

● 2009-07-02 02:50:56
● 2019-01-19 18:30:50
○ 2021-04-03 22:18:46
○ 2026-03-14 23:22:18

○MXndugway03.ndu.edu2016-04-04 → 2019-01-19 · 5 obs

○ 2015-07-25 10:18:12
● 2016-04-04 04:34:46
● 2019-01-19 18:30:50
○ 2021-04-03 22:18:46
○ 2026-03-14 23:22:18

○A198.76.98.772009-07-02 → 2009-07-02 · 3 obs

● 2009-07-02 02:50:56
○ 2015-07-25 10:18:12
○ 2026-03-14 23:22:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
edu	b.edu-servers.net, l.edu-servers.net, f.edu-servers.net, a.edu-servers.net...	26 records
ndu.edu	ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com, ns3.bdm.microsoftonline.com, ns4.bdm.microsoftonline.com	-

✅ Authoritative Response

Server: 204.14.183.208

NS records: ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com, ns3.bdm.microsoftonline.com, ns4.bdm.microsoftonline.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ndu.edu (unsigned zone)

⏱️ Timing

Total: 505ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com...`
MX	1	`ndu-edu.mail.eo.outlook.com (pri: 0)`
TXT	14	`MS=ms66756854, 2cb34vlwksgz2bg3cddz18ngxqy3r013...`
SOA	1	`ns1.bdm.microsoftonline.com azuredns-hos`

📌 Glue Records Collected

Total: 26

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

Analysis

Hierarchy

ndu.edu is a parent of icollege.ndu.edu, jfsc.ndu.edu, inet003.ndu.edu, ndupress.ndu.edu, www.ndu.edu and a few other host names.

Name Servers

ndu.edu's delegation is handled by four name servers: ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com, ns3.bdm.microsoftonline.com and ns4.bdm.microsoftonline.com.

ndu.edu partially shares name servers with other domains; examples include thewellcdc.com, consensusavocats.com, frontierdatavault.com, royalfi.com and beechwood.wokingham.sch.uk.

Host names with two IPs:

ns1.bdm.microsoftonline.com points to 2603:1061:0:700::d0 and 13.107.236.208

ns2.bdm.microsoftonline.com points to 2620:1ec:8ec:700::d0 and 150.171.21.208

ns3.bdm.microsoftonline.com points to 2a01:111:4000:700::d0 and 204.14.183.208

ns4.bdm.microsoftonline.com points to 2620:1ec:bda:700::d0 and 208.84.5.208

Mail Servers

ndu.edu is handled by a single mail server, ndu-edu.mail.eo.outlook.com.

Hostname ndu-edu.mail.eo.outlook.com points to eight IP numbers: 2a01:111:f403:c901::1, 2a01:111:f403:c902::3, 2a01:111:f403:c902::5, 2a01:111:f403:c91d::b, 52.101.9.0, 52.101.50.4, 52.101.50.10 and 52.101.194.0.

ndu.edu - robtex.com

ndu.edu

edu

PTR for

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

Name Servers

Mail Servers

`ndu.edu`

`edu`