udacity.cc - dns.ninja

udacity.cc

DNSSEC⚠️ Not signed
A2606:4700:3031::ac43:92d7🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::6815:4fb2🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.79.178Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.146.215🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSingrid.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3aa5🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRingrid.ns.cloudflare.com
A2803:f800:50::6ca2:c0a5🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRingrid.ns.cloudflare.com
A2a06:98c1:50::ac40:20a5🇺🇸 Cloudflare2a06:98c1:50::/45
PTRingrid.ns.cloudflare.com
A108.162.192.165🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRingrid.ns.cloudflare.com
A172.64.32.165🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRingrid.ns.cloudflare.com
A173.245.58.165🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRingrid.ns.cloudflare.com
NSkai.ns.cloudflare.com
A2606:4700:58::adf5:3bbc🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkai.ns.cloudflare.com
A2803:f800:50::6ca2:c1bc🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRkai.ns.cloudflare.com
A2a06:98c1:50::ac40:21bc🇺🇸 Cloudflare2a06:98c1:50::/45
PTRkai.ns.cloudflare.com
A108.162.193.188🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkai.ns.cloudflare.com
A172.64.33.188🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkai.ns.cloudflare.com
A173.245.59.188🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkai.ns.cloudflare.com
TXTv=spf1 -all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.79.178, 172.67.146.215
IPv6 hints2606:4700:3031::ac43:92d7, 2606:4700:3036::6815:4fb2
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=222, name=cloudflare-ech.com
SOAingrid.ns.cloudflare.comdns@cloudflare.com serial=2407223136

cc

DNSSEC🔒 Signed (DS record present)
NSac1.nstld.com ⭐
NSac2.nstld.com
NSac3.nstld.com
NSac4.nstld.com
SOAac1.nstld.cominfo@verisign-grs.com serial=1783930060

Same first word

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Similar names

cyaudit.com
taiyudc.com
dacuity.com
auditcy.com
ycaudit.com
adcuity.com
cdtaiyu.com
audcity.com
daucity.de
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cdyutai.com
cyudati.com

DNS History

7 records (6 active, 1 former)

NSingrid.ns.cloudflare.comkai.ns.cloudflare.comA104.21.79.178172.67.146.2152606:4700:3031::ac43:92d72606:4700:3036::6815:4fb22606:4700:3033::ac43:92d7
●NSingrid.ns.cloudflare.com2026-02-23 → 2026-07-13 · 2 obs
● 2026-02-23 11:02:42
● 2026-07-13 08:42:06
●NSkai.ns.cloudflare.com2026-02-23 → 2026-07-13 · 2 obs
● 2026-02-23 11:02:42
● 2026-07-13 08:42:06
●A104.21.79.1782026-02-23 → 2026-07-13 · 2 obs
● 2026-02-23 11:02:42
● 2026-07-13 08:42:06
●A172.67.146.2152026-02-23 → 2026-07-13 · 2 obs
● 2026-02-23 11:02:42
● 2026-07-13 08:42:06
●A2606:4700:3031::ac43:92d72026-07-08 → 2026-07-13 · 3 obs
○ 2026-06-18 05:44:02
● 2026-07-08 08:13:00
● 2026-07-13 08:42:06
○A2606:4700:3033::ac43:92d72026-02-23 → 2026-06-18 · 4 obs
● 2026-02-23 11:02:42
● 2026-06-18 05:44:02
○ 2026-07-08 08:13:00
○ 2026-07-13 08:42:06
●A2606:4700:3036::6815:4fb22026-02-23 → 2026-07-13 · 2 obs
● 2026-02-23 11:02:42
● 2026-07-13 08:42:06

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
ccac1.nstld.com, ac2.nstld.com, ac3.nstld.com, ac4.nstld.com-
udacity.ccingrid.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 udacity.cc (unsigned zone)

⏱️ Timing

Total: 478ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.79.178, 172.67.146.215
AAAA22606:4700:3036::6815:4fb2, 2606:4700:3031::ac43:92d7
NS2ingrid.ns.cloudflare.com, kai.ns.cloudflare.com
MX1. (pri: 0)
TXT1v=spf1 -all
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1ingrid.ns.cloudflare.com dns.cloudflare.

Analysis

IP Addresses

udacity.cc resolves to four IP addresses: 104.21.79.178, 172.67.146.215, 2606:4700:3031::ac43:92d7 and 2606:4700:3036::6815:4fb2.

Two other host names, along with 32qy.com, 7k-lodiums.casino and subwayeats.com, also share IP numbers with udacity.cc.

Name Servers

udacity.cc uses two name servers for its delegation: ingrid.ns.cloudflare.com and kai.ns.cloudflare.com.

udacity.cc shares its NS records with other domains, for example ai-class.org, udacitychallenge.net, nanodegree.se and two others.

udacity.cc partially shares its NS delegation with several other domains, including bcmax.com.au, findadialysiscenter.com, 3dbuildings.com and two others.

The name servers leah.ns.cloudflare.com, jerry.ns.cloudflare.com, eugene.ns.cloudflare.com and noel.ns.cloudflare.com are often found in use alongside these name servers.

DNS names with 6 IP addresses:

Hostname ingrid.ns.cloudflare.com directs to 108.162.192.165, 172.64.32.165 and 173.245.58.165 along with 3 other IP addresses.

Hostname kai.ns.cloudflare.com directs to 108.162.193.188, 172.64.33.188 and 173.245.59.188 along with 3 other IP addresses.