learn.udacity.com - dns.ninja

`learn.udacity.com`

	CNAME	`learn.udacity.com.cdn.cloudflare.net`
	DNSSEC	⚠️ Not signed
	A	2606:4700:4408::6812:2a62^{🇺🇸 Cloudflare2606:4700:4408::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
	A	2a06:98c1:3109::ac40:919e^{🇺🇸 Cloudflare2a06:98c1:3109::/48}
	A	104.18.42.98^{Cloudflare104.18.42.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
	A	172.64.145.158^{🇺🇸 Cloudflare172.64.145.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}

`udacity.com`

	DNSSEC	⚠️ Not signed
	A	18.238.4.36^{🇺🇸 Amazon18.238.4.0/22}
	A	18.238.4.37^{🇺🇸 Amazon18.238.4.0/22}
	A	18.238.4.53^{🇺🇸 Amazon18.238.4.0/22}
	A	18.238.4.71^{🇺🇸 Amazon18.238.4.0/22}
	NS	`ns-1549.awsdns-01.co.uk` ⭐
	NS	`ns-1014.awsdns-62.net`
	NS	`ns-1109.awsdns-10.org`
	NS	`ns-13.awsdns-01.com`
	MX	`mxa-00593801.gslb.pphosted.com` ⭐
	MX	`mxb-00593801.gslb.pphosted.com` ⭐
	TXT	`apple-domain-verification=iaobRRgsJ5xUkcuj`
	TXT	`atlassian-domain-verification=59aeShSTbEvs7cB33k4Wsvath8fOirTAy79UnAbOloto0Ay...`
	TXT	`atlassian-domain-verification=mBjfUMIIMEpsVsE5wql1jKvzxVpCWKZwpnSWFbY51pnIrp5...`
	TXT	`atlassian-sending-domain-verification=4a498916-8f31-4a42-b4ec-758ee24b79e4`
	TXT	`cursor-domain-verification-7zn380=ChGiB1Fhp14asve0cCXYyhxFn`
	TXT	`facebook-domain-verification=q0sgl66mvrtj3ivlf1s98bn6gxvii2`
	TXT	`google-site-verification=FJqQiq8r-ExkN9kiVDy44SL2wkm6VS8zka0HUkunGME`
	TXT	`status-page-domain-verification=y08j3wqb2sw9`
	TXT	`v=spf1 include:_spf.google.com include:sendgrid.net include:mail.zendesk.com ...`
	SOA	`ns-1549.awsdns-01.co.uk`awsdns-hostmaster@amazon.com serial=1

WOT: SAFE (94/100)
rank #2933 globally
rank #1529 in the tld
WOT: SAFE (94/100)
📈 Tranco rank: #11,279

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DNS History

1 record (1 active, 0 former)

●CNAMElearn.udacity.com.cdn.cloudflare.net2026-03-01 → 2026-07-13 · 2 obs

● 2026-03-01 05:02:00
● 2026-07-13 13:25:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
udacity.com	ns-13.awsdns-01.com, ns-1014.awsdns-62.net, ns-1549.awsdns-01.co.uk, ns-1109.awsdns-10.org	2 records
udacity.com	ns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk	-
udacity.com	ns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk	-
udacity.com	ns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk	-
udacity.com	ns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk	-
udacity.com	ns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk	-
udacity.com	ns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk	-
udacity.com	ns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk	-
udacity.com	ns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk	-
udacity.com	ns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk	-
udacity.com	ns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk	-
udacity.com	ns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk	-
udacity.com	ns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk	-
udacity.com	ns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk	-
udacity.com	ns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk	-
udacity.com	ns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk	-
udacity.com	ns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk	-
udacity.com	ns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk	-
udacity.com	ns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk	-
udacity.com	ns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk	-

✅ Authoritative Response

Server:205.251.195.246

NS records: ns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for udacity.com (unsigned zone)

⏱️ Timing

Total: 654ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`learn.udacity.com.cdn.cloudflare.net`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-13.awsdns-01.com, ns-13.awsdns-01.com)

Analysis

IP Addresses

learn.udacity.com directs to four IP numbers, which are 104.18.42.98, 172.64.145.158, 2606:4700:4408::6812:2a62 and 2a06:98c1:3109::ac40:919e.

Among the host names that share IP numbers with learn.udacity.com are international.sagex3.com, bogard.dk, review-staging.udacity.com.cdn.cloudflare.net and two others.