udacity.dk - dns.ninja

`udacity.dk`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::ac43:a1b2^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:f31^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.15.49^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.161.178^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`ingrid.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3aa5^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ingrid.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0a5^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ingrid.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20a5^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ingrid.ns.cloudflare.com`
		A	108.162.192.165^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ingrid.ns.cloudflare.com`
		A	172.64.32.165^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ingrid.ns.cloudflare.com`
		A	173.245.58.165^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ingrid.ns.cloudflare.com`
NS	`kai.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bbc^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kai.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1bc^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`kai.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21bc^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`kai.ns.cloudflare.com`
		A	108.162.193.188^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kai.ns.cloudflare.com`
		A	172.64.33.188^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kai.ns.cloudflare.com`
		A	173.245.59.188^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kai.ns.cloudflare.com`
TXT	`v=spf1 -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.15.49, 172.67.161.178
		IPv6 hints	2606:4700:3033::ac43:a1b2, 2606:4700:3036::6815:f31
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=119, name=cloudflare-ech.com
SOA	`ingrid.ns.cloudflare.com`dns@cloudflare.com serial=2407590368

`dk`

	DNSSEC	🔒 Signed (DS record present)
	NS	`b.nic.dk` ⭐
	NS	`c.nic.dk`
	NS	`h.nic.dk`
	NS	`l.nic.dk`
	NS	`s.nic.dk`
	NS	`t.nic.dk`
	TXT	`DK zone updateEpoch 1783866601localtime Sun Jul 12 16:30:01 2026gmtime Sun Ju...`
	SOA	`b.nic.dk`tech@punktum.dk serial=1783866601

Same first word

udacity.training

udacity.co.za

udacity.tw

udacity.sg

udacity.my

udacity.fit

udacity.ae

udacity.vn

udacity.dev

udacity.net

udacity.sucks

udacity.ph

udacity.work

udacity.com.ar

udacity.jobs

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udacity.fr

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udacity.org

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udacity.co.kr

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udacity.mobi

udacity.com.sg

udacity.build

udacity.dk

udacity.university

udacity.cc

udacity.mx

udacity.us

udacity.github.io

udacity.tv

udacity.marketing

udacity.au

udacity.io

udacity.tech

udacity.works

udacity.in

udacity.co.in

udacity.college

udacity.info

udacity.pt

Similar names

auditcy.com

ycaudit.com

adcuity.com

cdtaiyu.com

audcity.com

daucity.de

tycuida.com

cdyutai.com

cyudati.com

cyaudit.com

taiyudc.com

dacuity.com

DNS History

14 records (6 active, 8 former)

●NSingrid.ns.cloudflare.com2026-02-19 → 2026-07-12 · 3 obs

○ 2017-04-01 18:10:28
● 2026-02-19 22:59:54
● 2026-07-12 14:35:56

●NSkai.ns.cloudflare.com2026-02-19 → 2026-07-12 · 3 obs

○ 2017-04-01 18:10:28
● 2026-02-19 22:59:54
● 2026-07-12 14:35:56

○NSns1.bodis.com2015-06-11 → 2015-10-24 · 4 obs

● 2015-06-11 18:16:34
● 2015-10-24 02:42:18
○ 2016-01-11 22:33:56
○ 2026-07-12 14:35:56

○NSns1.markmonitor.com2016-01-11 → 2017-04-01 · 5 obs

○ 2015-10-24 02:42:18
● 2016-01-11 22:33:56
● 2017-04-01 18:10:28
○ 2026-02-19 22:59:54
○ 2026-07-12 14:35:56

○NSns2.bodis.com2015-06-11 → 2015-10-24 · 4 obs

● 2015-06-11 18:16:34
● 2015-10-24 02:42:18
○ 2016-01-11 22:33:56
○ 2026-07-12 14:35:56

○NSns3.markmonitor.com2016-01-11 → 2017-04-01 · 5 obs

○ 2015-10-24 02:42:18
● 2016-01-11 22:33:56
● 2017-04-01 18:10:28
○ 2026-02-19 22:59:54
○ 2026-07-12 14:35:56

●A104.21.15.492026-02-19 → 2026-07-12 · 3 obs

○ 2017-04-01 18:10:28
● 2026-02-19 22:59:54
● 2026-07-12 14:35:56

●A172.67.161.1782026-02-19 → 2026-07-12 · 3 obs

○ 2017-04-01 18:10:28
● 2026-02-19 22:59:54
● 2026-07-12 14:35:56

○A199.59.243.1202015-06-11 → 2015-10-24 · 4 obs

● 2015-06-11 18:16:34
● 2015-10-24 02:42:18
○ 2016-01-11 22:33:56
○ 2026-07-12 14:35:56

○A2606:4700:3032::ac43:a1b22026-02-19 → 2026-06-17 · 5 obs

○ 2017-04-01 18:10:28
● 2026-02-19 22:59:54
● 2026-06-17 12:14:04
○ 2026-07-08 09:10:46
○ 2026-07-12 14:35:56

●A2606:4700:3033::ac43:a1b22026-07-08 → 2026-07-12 · 3 obs

○ 2026-06-17 12:14:04
● 2026-07-08 09:10:46
● 2026-07-12 14:35:56

●A2606:4700:3036::6815:f312026-07-08 → 2026-07-12 · 3 obs

○ 2026-06-17 12:14:04
● 2026-07-08 09:10:46
● 2026-07-12 14:35:56

○A2606:4700:3037::6815:f312026-02-19 → 2026-06-17 · 5 obs

○ 2017-04-01 18:10:28
● 2026-02-19 22:59:54
● 2026-06-17 12:14:04
○ 2026-07-08 09:10:46
○ 2026-07-12 14:35:56

○A93.191.168.522016-01-11 → 2017-04-01 · 5 obs

○ 2015-10-24 02:42:18
● 2016-01-11 22:33:56
● 2017-04-01 18:10:28
○ 2026-02-19 22:59:54
○ 2026-07-12 14:35:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dk	b.nic.dk, h.nic.dk, t.nic.dk, c.nic.dk...	-
udacity.dk	kai.ns.cloudflare.com, ingrid.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.192.165

NS records: kai.ns.cloudflare.com, ingrid.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for udacity.dk (unsigned zone)

⏱️ Timing

Total: 489ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.15.49, 172.67.161.178`
AAAA	2	`2606:4700:3036::6815:f31, 2606:4700:3033::ac43:a1b2`
NS	2	`ingrid.ns.cloudflare.com, kai.ns.cloudflare.com`
MX	1	`. (pri: 0)`
TXT	1	`v=spf1 -all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`ingrid.ns.cloudflare.com dns.cloudflare.`

Analysis

IP Addresses

udacity.dk has four IP addresses: 104.21.15.49, 172.67.161.178, 2606:4700:3033::ac43:a1b2 and 2606:4700:3036::6815:f31.

Additional host names — bcg-wholesalers.com, roofworxllc.com, mblmail.net and two others — share IP numbers with udacity.dk.

Name Servers

The NS records for udacity.dk delegate to ingrid.ns.cloudflare.com and kai.ns.cloudflare.com.

udacity.dk shares its name server setup with other domains, including udacity.fit, udacit.biz, udacious.com and two others.

udacity.dk has at least partial name server overlap with other domains, such as lewispharma.com, dlraw.app, vivadecor.bg and two others.

These name servers tend to appear together with the name servers joan.ns.cloudflare.com, toby.ns.cloudflare.com and nile.ns.cloudflare.com.

Host names with 6 IP numbers:

ingrid.ns.cloudflare.com maps to 108.162.192.165, 172.64.32.165, 173.245.58.165 and 3 additional IP addresses.

kai.ns.cloudflare.com maps to 108.162.193.188, 172.64.33.188, 173.245.59.188 and 3 additional IP addresses.