`udacity.pt`

DNSSEC	⚠️ Not signed
A	2606:4700:3035::ac43:8037^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:bf^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.0.191^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.128.55^{🇺🇸 Cloudflare172.67.128.0/20 , 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	104.21.0.191, 172.67.128.55
		IPv6	2606:4700:3035::ac43:8037, 2606:4700:3037::6815:bf
SOA	`ingrid.ns.cloudflare.com`dns@cloudflare.com serial=2397665075

`pt`

	DNSSEC	🔒 Signed (DS record present)
	NS	`curiosity.dns.pt` ⭐ 🔒
	NS	`a.dns.pt` 🔒
	NS	`b.dns.pt` 🔒
	NS	`c.dns.pt` 🔒
	NS	`d.dns.pt` 🔒
	NS	`e.dns.pt` 🔒
	NS	`g.dns.pt` 🔒
	NS	`h.dns.pt` 🔒
	NS	`ns.dns.br` ⚠️ Not in parent delegation 🔒
	NS	`ns2.nic.fr` ⚠️ Not in parent delegation 🔒
	SOA	`curiosity.dns.pt`request@dns.pt 2026-03-22 #19

Same first word

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udacity.marketing

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udacity.institute

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udacity.in

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Similar names

audcity.de

cyudati.com

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taiyudc.com

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DNS History

10 records (6 active, 4 former)

●NSingrid.ns.cloudflare.com2026-02-23 → 2026-03-23 · 2 obs

● 2026-02-23 11:08:58
● 2026-03-23 07:25:30

●NSkai.ns.cloudflare.com2026-02-23 → 2026-03-23 · 2 obs

● 2026-02-23 11:08:58
● 2026-03-23 07:25:30

●A104.21.0.1912026-02-23 → 2026-03-23 · 4 obs

● 2026-02-23 11:08:58
● 2026-03-10 07:34:48
○ 2026-03-14 01:48:16
● 2026-03-23 07:25:30

●A172.67.128.552026-02-23 → 2026-03-23 · 4 obs

● 2026-02-23 11:08:58
● 2026-03-10 07:34:48
○ 2026-03-14 01:48:16
● 2026-03-23 07:25:30

○A188.114.96.02026-03-14 → 2026-03-14 · 3 obs

○ 2026-03-10 07:34:48
● 2026-03-14 01:48:16
○ 2026-03-23 07:25:30

○A188.114.97.02026-03-14 → 2026-03-14 · 3 obs

○ 2026-03-10 07:34:48
● 2026-03-14 01:48:16
○ 2026-03-23 07:25:30

●A2606:4700:3035::ac43:80372026-02-23 → 2026-03-23 · 4 obs

● 2026-02-23 11:08:58
● 2026-03-10 07:34:48
○ 2026-03-14 01:48:16
● 2026-03-23 07:25:30

●A2606:4700:3037::6815:bf2026-02-23 → 2026-03-23 · 4 obs

● 2026-02-23 11:08:58
● 2026-03-10 07:34:48
○ 2026-03-14 01:48:16
● 2026-03-23 07:25:30

○A2a06:98c1:3120::2026-03-14 → 2026-03-14 · 3 obs

○ 2026-03-10 07:34:48
● 2026-03-14 01:48:16
○ 2026-03-23 07:25:30

○A2a06:98c1:3121::2026-03-14 → 2026-03-14 · 3 obs

○ 2026-03-10 07:34:48
● 2026-03-14 01:48:16
○ 2026-03-23 07:25:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
pt	a.dns.pt, b.dns.pt, c.dns.pt, d.dns.pt...	18 records
udacity.pt	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.pt (unsigned zone)

⏱️ Timing

Total: 877ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.128.55, 104.21.0.191`
AAAA	2	`2606:4700:3035::ac43:8037, 2606:4700:3037::6815:bf`
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.`

📌 Glue Records Collected

Total: 18

In-bailiwick: 14 (a.dns.pt, a.dns.pt, b.dns.pt...)

Out-of-bailiwick: 4 (ns.dns.br, ns.dns.br, ns2.nic.fr...)

Analysis

IP Addresses

udacity.pt points to four IP numbers: 2606:4700:3035::ac43:8037, 2606:4700:3037::6815:bf, 104.21.0.191 and 172.67.128.55.

Other host names, for instance www.multi(0x706f726e)tube.com, multi(0x706f726e)tube.com, workway.dev, aoyamagroup.com and play-elitbet.net share IP numbers with udacity.pt.

Name Servers

udacity.pt's delegation is to two name servers ingrid.ns.cloudflare.com and kai.ns.cloudflare.com.

udacity.pt shares the same name server configuration as other domains, such as youdasity.org, udasity.tel, youdax.com, nanodegree.com.au and udacity.biz.

udacity.pt at least partially shares its name servers with other domains, for instance muxama.com, email60.com, nwire.ru, eqp.ro and conferencehellas.gr.

These name servers are commonly used alongside noel.ns.cloudflare.com and rommy.ns.cloudflare.com.

Host names with six IP numbers:

ingrid.ns.cloudflare.com points to: 2606:4700:50::adf5:3aa5, 2803:f800:50::6ca2:c0a5, 2a06:98c1:50::ac40:20a5, 108.162.192.165, 172.64.32.165 and 173.245.58.165.

kai.ns.cloudflare.com points to: 2606:4700:58::adf5:3bbc, 2803:f800:50::6ca2:c1bc, 2a06:98c1:50::ac40:21bc, 108.162.193.188, 172.64.33.188 and 173.245.59.188.

udacity.pt - robtex.com

udacity.pt

pt

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

`udacity.pt`

`pt`