`udacitychallenge.net`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:116a^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::ac43:af78^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.17.106^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.175.120^{🇺🇸 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	104.21.17.106, 172.67.175.120
		IPv6	2606:4700:3031::6815:116a, 2606:4700:3034::ac43:af78
SOA	`ingrid.ns.cloudflare.com`dns@cloudflare.com serial=2397791818

`net`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1771291465

Same first word

udacitychallenge.com

udacitychallenge.biz

udacitychallenge.me

udacitychallenge.info

udacitychallenge.net

udacitychallenge.org

udacitychallenge.de

DNS History

10 records (6 active, 4 former)

●NSingrid.ns.cloudflare.com2026-02-23 → 2026-03-24 · 2 obs

● 2026-02-23 11:00:04
● 2026-03-24 00:53:54

●NSkai.ns.cloudflare.com2026-02-23 → 2026-03-24 · 2 obs

● 2026-02-23 11:00:04
● 2026-03-24 00:53:54

●A104.21.17.1062026-02-23 → 2026-03-24 · 6 obs

● 2026-02-23 11:00:04
○ 2026-02-24 11:42:02
● 2026-03-03 07:11:52
○ 2026-03-23 22:29:54
● 2026-03-24 00:53:52
● 2026-03-24 00:53:54

●A172.67.175.1202026-02-23 → 2026-03-24 · 6 obs

● 2026-02-23 11:00:04
○ 2026-02-24 11:42:02
● 2026-03-03 07:11:52
○ 2026-03-23 22:29:54
● 2026-03-24 00:53:52
● 2026-03-24 00:53:54

○A188.114.96.02026-02-24 → 2026-03-23 · 6 obs

○ 2026-02-23 11:00:04
● 2026-02-24 11:42:02
○ 2026-03-03 07:11:52
● 2026-03-23 22:29:54
○ 2026-03-24 00:53:52
○ 2026-03-24 00:53:54

○A188.114.97.02026-02-24 → 2026-03-23 · 6 obs

○ 2026-02-23 11:00:04
● 2026-02-24 11:42:02
○ 2026-03-03 07:11:52
● 2026-03-23 22:29:54
○ 2026-03-24 00:53:52
○ 2026-03-24 00:53:54

●A2606:4700:3031::6815:116a2026-02-23 → 2026-03-24 · 6 obs

● 2026-02-23 11:00:04
○ 2026-02-24 11:42:02
● 2026-03-03 07:11:52
○ 2026-03-23 22:29:54
● 2026-03-24 00:53:52
● 2026-03-24 00:53:54

●A2606:4700:3034::ac43:af782026-02-23 → 2026-03-24 · 6 obs

● 2026-02-23 11:00:04
○ 2026-02-24 11:42:02
● 2026-03-03 07:11:52
○ 2026-03-23 22:29:54
● 2026-03-24 00:53:52
● 2026-03-24 00:53:54

○A2a06:98c1:3120::2026-02-24 → 2026-03-23 · 6 obs

○ 2026-02-23 11:00:04
● 2026-02-24 11:42:02
○ 2026-03-03 07:11:52
● 2026-03-23 22:29:54
○ 2026-03-24 00:53:52
○ 2026-03-24 00:53:54

○A2a06:98c1:3121::2026-02-24 → 2026-03-23 · 6 obs

○ 2026-02-23 11:00:04
● 2026-02-24 11:42:02
○ 2026-03-03 07:11:52
● 2026-03-23 22:29:54
○ 2026-03-24 00:53:52
○ 2026-03-24 00:53:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
udacitychallenge.net	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 udacitychallenge.net (unsigned zone)

⏱️ Timing

Total: 301ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.17.106, 172.67.175.120`
AAAA	2	`2606:4700:3034::ac43:af78, 2606:4700:3031::6815:116a`
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

Four IP numbers are pointed to by udacitychallenge.net: 2606:4700:3031::6815:116a, 2606:4700:3034::ac43:af78, 104.21.17.106 and 172.67.175.120.

other host names including dojoxiliscapital.click, jhyky168.com, litos-media.de, jukebox.com and pzww.net share IP numbers with udacitychallenge.net.

Name Servers

udacitychallenge.net is delegated to two name servers ingrid.ns.cloudflare.com and kai.ns.cloudflare.com.

udacitychallenge.net shares the same name server setup as other domains, for instance yongganxue.cn, nanodegrees.cn, udacity.uk, youdaxc.org and udacity.co.uk.

udacitychallenge.net at least partially shares name servers with other domains, for instance treener.ee, atrmstr.com, financingsolutionsnow.com, tessabanatsamat.go.th and gamecast.it.

these name servers are commonly used alongside noel.ns.cloudflare.com.

Host names with six IP numbers:

Host name 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.

Host name 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.

udacitychallenge.net - robtex.com