br.udacity.com - dns.ninja

br.udacity.com

CNAMEbr.udacity.com.cdn.cloudflare.net
DNSSEC⚠️ Not signed
A2606:4700:4408::6812:2a62🇺🇸 Cloudflare2606:4700:4408::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A2a06:98c1:3109::ac40:919e🇺🇸 Cloudflare2a06:98c1:3109::/48
A104.18.42.98Cloudflare104.18.42.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A172.64.145.158🇺🇸 Cloudflare172.64.145.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US

udacity.com

DNSSEC⚠️ Not signed
A108.138.103.8🇺🇸 Amazon108.136.0.0/14
A108.138.103.42🇺🇸 Amazon108.136.0.0/14
A108.138.103.88🇺🇸 Amazon108.136.0.0/14
A108.138.103.129🇺🇸 Amazon108.136.0.0/14
NSns-1549.awsdns-01.co.uk ⭐
NSns-1014.awsdns-62.net
NSns-1109.awsdns-10.org
NSns-13.awsdns-01.com
MXmxa-00593801.gslb.pphosted.com ⭐
MXmxb-00593801.gslb.pphosted.com ⭐
TXTapple-domain-verification=iaobRRgsJ5xUkcuj
TXTatlassian-domain-verification=59aeShSTbEvs7cB33k4Wsvath8fOirTAy79UnAbOloto0Ay...
TXTatlassian-domain-verification=mBjfUMIIMEpsVsE5wql1jKvzxVpCWKZwpnSWFbY51pnIrp5...
TXTatlassian-sending-domain-verification=4a498916-8f31-4a42-b4ec-758ee24b79e4
TXTcursor-domain-verification-7zn380=ChGiB1Fhp14asve0cCXYyhxFn
TXTfacebook-domain-verification=q0sgl66mvrtj3ivlf1s98bn6gxvii2
TXTgoogle-site-verification=FJqQiq8r-ExkN9kiVDy44SL2wkm6VS8zka0HUkunGME
TXTstatus-page-domain-verification=y08j3wqb2sw9
TXTv=spf1 include:_spf.google.com include:sendgrid.net include:mail.zendesk.com ...
SOAns-1549.awsdns-01.co.ukawsdns-hostmaster@amazon.com serial=1
WOT: SAFE (94/100)
rank #2926 globally
rank #1523 in the tld
WOT: SAFE (94/100)
📈 Tranco rank: #11,276

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DNS History

14 records (1 active, 13 former)

2017201820192020202120222023202420252026NSns-1385.awsdns-45.orgns-1756.awsdns-27.co.ukns-398.awsdns-49.comns-560.awsdns-06.netA54.192.139.12154.192.139.1354.192.139.18354.192.139.21454.192.139.21554.192.139.4554.192.139.5154.192.139.87CNAMEbr.udacity.com.cdn.cloudflare.netduwr6kad0kdaf.cloudfront.net
○NSns-1385.awsdns-45.org2016-12-29 → 2016-12-29 · 3 obs
● 2016-12-29 17:25:06
○ 2026-04-13 08:55:34
○ 2026-07-15 13:53:10
○NSns-1756.awsdns-27.co.uk2016-12-29 → 2016-12-29 · 3 obs
● 2016-12-29 17:25:06
○ 2026-04-13 08:55:34
○ 2026-07-15 13:53:10
○NSns-398.awsdns-49.com2016-12-29 → 2016-12-29 · 3 obs
● 2016-12-29 17:25:06
○ 2026-04-13 08:55:34
○ 2026-07-15 13:53:10
○NSns-560.awsdns-06.net2016-12-29 → 2016-12-29 · 3 obs
● 2016-12-29 17:25:06
○ 2026-04-13 08:55:34
○ 2026-07-15 13:53:10
○A54.192.139.1212016-12-29 → 2016-12-29 · 3 obs
● 2016-12-29 17:25:06
○ 2026-04-13 08:55:34
○ 2026-07-15 13:53:10
○A54.192.139.132016-12-29 → 2016-12-29 · 3 obs
● 2016-12-29 17:25:06
○ 2026-04-13 08:55:34
○ 2026-07-15 13:53:10
○A54.192.139.1832016-12-29 → 2016-12-29 · 3 obs
● 2016-12-29 17:25:06
○ 2026-04-13 08:55:34
○ 2026-07-15 13:53:10
○A54.192.139.2142016-12-29 → 2016-12-29 · 3 obs
● 2016-12-29 17:25:06
○ 2026-04-13 08:55:34
○ 2026-07-15 13:53:10
○A54.192.139.2152016-12-29 → 2016-12-29 · 3 obs
● 2016-12-29 17:25:06
○ 2026-04-13 08:55:34
○ 2026-07-15 13:53:10
○A54.192.139.452016-12-29 → 2016-12-29 · 3 obs
● 2016-12-29 17:25:06
○ 2026-04-13 08:55:34
○ 2026-07-15 13:53:10
○A54.192.139.512016-12-29 → 2016-12-29 · 3 obs
● 2016-12-29 17:25:06
○ 2026-04-13 08:55:34
○ 2026-07-15 13:53:10
○A54.192.139.872016-12-29 → 2016-12-29 · 3 obs
● 2016-12-29 17:25:06
○ 2026-04-13 08:55:34
○ 2026-07-15 13:53:10
●CNAMEbr.udacity.com.cdn.cloudflare.net2026-04-13 → 2026-07-15 · 11 obs
○ 2016-12-29 17:25:06
● 2026-04-13 08:55:34
● 2026-06-06 20:27:26
○ 2026-06-06 21:18:34
● 2026-06-07 00:40:44
● 2026-06-12 03:01:04
○ 2026-06-12 04:19:00
● 2026-06-12 15:44:08
○ 2026-06-18 16:21:42
● 2026-06-18 17:09:18
● 2026-07-15 13:53:10
○CNAMEduwr6kad0kdaf.cloudfront.net2016-12-29 → 2016-12-29 · 3 obs
● 2016-12-29 17:25:06
○ 2026-04-13 08:55:34
○ 2026-07-15 13:53:10

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
udacity.comns-13.awsdns-01.com, ns-1014.awsdns-62.net, ns-1549.awsdns-01.co.uk, ns-1109.awsdns-10.org2 records
udacity.comns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk-
udacity.comns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk-
udacity.comns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk-
udacity.comns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk-
udacity.comns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk-
udacity.comns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk-
udacity.comns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk-
udacity.comns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk-
udacity.comns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk-
udacity.comns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk-
udacity.comns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk-
udacity.comns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk-
udacity.comns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk-
udacity.comns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk-
udacity.comns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk-
udacity.comns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk-
udacity.comns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk-
udacity.comns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk-
udacity.comns-1014.awsdns-62.net, ns-1109.awsdns-10.org, ns-13.awsdns-01.com, ns-1549.awsdns-01.co.uk-

✅ Authoritative Response

Server:205.251.198.13

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: 545ms | Queries: -

📄 Records

TypeCountSample Data
CNAME1br.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

br.udacity.com points to the four IP addresses 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 br.udacity.com are 24av.top, (0x706f726e687562).team, zhongzidi.com and two others.