`udacitychallenge.info`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::6815:32bd^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:d162^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.50.189^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.209.98^{🇺🇸 Cloudflare172.67.208.0/20 , 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	104.21.50.189, 172.67.209.98
		IPv6	2606:4700:3034::6815:32bd, 2606:4700:3037::ac43:d162
SOA	`ingrid.ns.cloudflare.com`dns@cloudflare.com serial=2397694818

`info`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.info.afilias-nst.info` ⭐
	NS	`a2.info.afilias-nst.info`
	NS	`b0.info.afilias-nst.org` ⚠️ Not in parent delegation
	NS	`b2.info.afilias-nst.org` ⚠️ Not in parent delegation
	NS	`c0.info.afilias-nst.info`
	NS	`d0.info.afilias-nst.org` ⚠️ Not in parent delegation
	SOA	`a0.info.afilias-nst.info`hostmaster@donuts.email serial=1774388323

Same first word

udacitychallenge.com

udacitychallenge.biz

udacitychallenge.me

udacitychallenge.info

udacitychallenge.net

udacitychallenge.org

udacitychallenge.de

DNS History

6 records (6 active, 0 former)

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

● 2026-02-23 10:56:54
● 2026-03-24 22:03:40

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

● 2026-02-23 10:56:54
● 2026-03-24 22:03:40

●A104.21.50.1892026-02-23 → 2026-03-24 · 2 obs

● 2026-02-23 10:56:54
● 2026-03-24 22:03:40

●A172.67.209.982026-02-23 → 2026-03-24 · 2 obs

● 2026-02-23 10:56:54
● 2026-03-24 22:03:40

●A2606:4700:3034::6815:32bd2026-02-23 → 2026-03-24 · 2 obs

● 2026-02-23 10:56:54
● 2026-03-24 22:03:40

●A2606:4700:3037::ac43:d1622026-02-23 → 2026-03-24 · 2 obs

● 2026-02-23 10:56:54
● 2026-03-24 22:03:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
info	a2.info.afilias-nst.info, a0.info.afilias-nst.info, c0.info.afilias-nst.info	-
udacitychallenge.info	ingrid.ns.cloudflare.com, kai.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.33.188

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for udacitychallenge.info (unsigned zone)

⏱️ Timing

Total: 2785ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.209.98, 104.21.50.189`
AAAA	2	`2606:4700:3034::6815:32bd, 2606:4700:3037::ac43:d162`
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

udacitychallenge.info resolves to four IP numbers: 2606:4700:3034::6815:32bd, 2606:4700:3037::ac43:d162, 104.21.50.189 and 172.67.209.98.

Other host names such as www.kole.pl, 3567ta.com, w3pds.com, 090011.com and lifeafterieps.com share IPs with udacitychallenge.info.

Name Servers

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

udacitychallenge.info shares the same name server setup as udacity.co.kr, blitz.to, udaci.net, udaxc.net and youdanxi.com.

udacitychallenge.info at least partially shares name servers with other domains, for instance whateverorigin.org, satthepbetong.com, tj-fchzc.com, everlastpharmacy.com and createguid.com.

these name servers are commonly used together with the name servers joan.ns.cloudflare.com, noel.ns.cloudflare.com, leah.ns.cloudflare.com, micah.ns.cloudflare.com and ali.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.

udacitychallenge.info - robtex.com