auth.skillbuilder.aws - dns.ninja

`auth.skillbuilder.aws`

DNSSEC	⚠️ Not signed
A	3.170.21.65^{🇺🇸 Amazon3.170.20.0/22}
		PTR	`server-3-170-21-65.iad61.r.cloudfront.net`
A	3.170.21.72^{🇺🇸 Amazon3.170.20.0/22}
A	3.170.21.92^{🇺🇸 Amazon3.170.20.0/22}
A	3.170.21.221^{🇺🇸 Amazon3.170.20.0/22}
NS	`ns-1264.awsdns-30.org` ⭐
		A	2600:9000:5304:f000::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1264.awsdns-30.org`
		A	205.251.196.240^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1264.awsdns-30.org`
NS	`ns-1718.awsdns-22.co.uk`
		A	2600:9000:5306:b600::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1718.awsdns-22.co.uk`
		A	205.251.198.182^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1718.awsdns-22.co.uk`
NS	`ns-290.awsdns-36.com`
		A	2600:9000:5301:2200::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-290.awsdns-36.com`
		A	205.251.193.34^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-290.awsdns-36.com`
NS	`ns-719.awsdns-25.net`
		A	2600:9000:5302:cf00::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-719.awsdns-25.net`
		A	205.251.194.207^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-719.awsdns-25.net`
SOA	`ns-1264.awsdns-30.org`awsdns-hostmaster@amazon.com serial=1

`skillbuilder.aws`

	DNSSEC	⚠️ Not signed
	A	3.167.56.35^{🇺🇸 Amazon3.167.56.0/23}
	A	3.167.56.75^{🇺🇸 Amazon3.167.56.0/23}
	A	3.167.56.110^{🇺🇸 Amazon3.167.56.0/23}
	A	3.167.56.113^{🇺🇸 Amazon3.167.56.0/23}
	NS	`ns-344.awsdns-43.com` ⭐
	NS	`ns-1440.awsdns-52.org`
	NS	`ns-1972.awsdns-54.co.uk`
	NS	`ns-741.awsdns-28.net`
	TXT	`google-site-verification=T4tTOBL9zBsNoDX4uEoI3r81p2w6MPRDDpApRDhow-E`
	TXT	`v=spf1 -all`
	SOA	`ns-344.awsdns-43.com`awsdns-hostmaster@amazon.com serial=1

rank #61508 globally
rank #3 in the tld
📈 Tranco rank: #33,432

Subdomains

us-east-1.auth.skillbuilder.aws

Same first word

auth.de

auth.srv.br

auth.com.ua

auth.tech.orange

auth.com.au

auth.ca

auth.ee

auth.im

auth.properties

auth.us

auth.partners

auth.kz

auth.bio

auth.cool

auth.lol

auth.solutions

auth.tel

auth.fail

auth.id

auth.zone

auth.black

auth.so

auth.sk

auth.at

auth.ch

auth.mobi

auth.inc

auth.hu

auth.co.za

auth.asia

auth.zeabur.app

auth.se

auth.taipei

auth.services

auth.fr

auth.su

auth.red

auth.as

auth.main.jp

auth.work

auth.com.br

auth.qld.gov.au

auth.eu

auth.dk

auth.vn

auth.fit

auth.fi

auth.nl

auth.bid

auth.today

auth.pl

auth.bmw

auth.email

auth.dev

auth.gg

auth.zip

auth.education

auth.cz

auth.s3-website-us-west-2.amazonaws.com

auth.vodka

auth.xyz

auth.sg

auth.icu

auth.adult

auth.mom

auth.to

auth.fans

auth.gr

auth.org

auth.ro

auth.pp.ua

auth.trafficmanager.net

auth.fyi

auth.rocks

auth.toscana.it

auth.com

auth.chat

auth.directory

auth.team

auth.co.jp

auth.game

auth.in.net

auth.business

auth.store

auth.aero

auth.dvag

auth.ac

auth.poker

auth.style

auth.net.br

auth.edu.ee

auth.microsoft

auth.gy

auth.management

auth.bot

auth.info

auth.company

auth.me

auth.ws

auth.tips

auth.guru

auth.co

auth.cash

auth.app

auth.kinghost.net

auth.agency

auth.online

auth.es

auth.rest

auth.it

auth.tools

auth.my

auth.schwarz

auth.re

auth.dog

Similar names

huta.com.sa

haut.co.at

thau.ch

tahu.net

tahu.com.cn

ahut.nl

utah.buzz

huta.com.pl

tahu.cn

utha.org

atuh.org

huat.cn

hatu.me

utah.travel

utha.com

thau.co

ahut.edu.cn

huta.cc

haut.be

utah.community

ahtu.ah.cn

huat.com

tahu.ru

huta.de

haut.cz

utah.coffee

haut.net

huat.co

huat.com.cn

utah.tel

haut.vip

tahu.eu.org

thau.com

utah.fyi

huat.cc

tuha.vn

atuh.cn

haut.ai

thau.com.ar

uhta.cn

haut.co

haut.team

haut.mt

utah.ut.us

thau.tv

thau.tech

utah.solar

utah.com

utah.eu

tuha.info

utah.singles

huat.jp

haut.care

haut.io

DNS History

36 records (8 active, 28 former)

●NSns-1264.awsdns-30.org2026-02-15 → 2026-06-18 · 2 obs

● 2026-02-15 22:13:16
● 2026-06-18 14:50:36

●NSns-1718.awsdns-22.co.uk2026-02-15 → 2026-06-18 · 2 obs

● 2026-02-15 22:13:16
● 2026-06-18 14:50:36

●NSns-290.awsdns-36.com2026-02-15 → 2026-06-18 · 2 obs

● 2026-02-15 22:13:16
● 2026-06-18 14:50:36

●NSns-719.awsdns-25.net2026-02-15 → 2026-06-18 · 2 obs

● 2026-02-15 22:13:16
● 2026-06-18 14:50:36

○A108.158.168.1792026-04-08 → 2026-06-01 · 12 obs

○ 2026-02-24 13:02:18
● 2026-04-08 09:08:52
● 2026-04-08 14:04:00
○ 2026-04-09 05:37:50
● 2026-04-09 06:44:36
● 2026-04-12 07:15:20
○ 2026-04-12 11:35:34
○ 2026-05-25 06:05:00
● 2026-05-30 01:55:06
● 2026-06-01 12:27:48
○ 2026-06-01 17:09:50
○ 2026-06-18 14:50:36

○A108.158.168.1822026-04-08 → 2026-06-01 · 12 obs

○A108.158.168.2182026-04-08 → 2026-06-01 · 12 obs

○A108.158.168.82026-04-08 → 2026-06-01 · 12 obs

○A13.33.62.1082026-02-24 → 2026-02-24 · 4 obs

○ 2026-02-21 00:37:26
● 2026-02-24 13:02:18
○ 2026-04-08 09:08:52
○ 2026-06-18 14:50:36

○A13.33.62.1472026-02-24 → 2026-02-24 · 4 obs

○ 2026-02-21 00:37:26
● 2026-02-24 13:02:18
○ 2026-04-08 09:08:52
○ 2026-06-18 14:50:36

○A13.33.62.2042026-02-24 → 2026-02-24 · 4 obs

○ 2026-02-21 00:37:26
● 2026-02-24 13:02:18
○ 2026-04-08 09:08:52
○ 2026-06-18 14:50:36

○A13.33.62.902026-02-24 → 2026-02-24 · 4 obs

○ 2026-02-21 00:37:26
● 2026-02-24 13:02:18
○ 2026-04-08 09:08:52
○ 2026-06-18 14:50:36

○A13.33.74.1522026-04-21 → 2026-05-05 · 16 obs

○ 2026-04-20 15:27:36
● 2026-04-21 03:43:18
● 2026-04-26 14:39:04
○ 2026-04-26 15:29:16
○ 2026-04-26 21:26:16
● 2026-04-28 08:55:52
● 2026-04-28 18:05:22
○ 2026-04-28 18:45:30
● 2026-04-30 14:08:14
● 2026-04-30 16:51:08
○ 2026-05-01 06:43:30
○ 2026-05-03 18:20:46
● 2026-05-05 00:22:34
● 2026-05-05 19:12:20
○ 2026-05-05 21:45:46
○ 2026-06-18 14:50:36

○A13.33.74.202026-04-21 → 2026-05-05 · 16 obs

○A13.33.74.32026-04-21 → 2026-05-05 · 16 obs

○A13.33.74.312026-04-21 → 2026-05-05 · 16 obs

○A13.35.23.1852026-06-02 → 2026-06-02 · 4 obs

○ 2026-06-01 17:09:50
● 2026-06-02 10:05:56
○ 2026-06-03 19:36:34
○ 2026-06-18 14:50:36

○A13.35.23.2272026-06-02 → 2026-06-02 · 4 obs

○ 2026-06-01 17:09:50
● 2026-06-02 10:05:56
○ 2026-06-03 19:36:34
○ 2026-06-18 14:50:36

○A13.35.23.322026-06-02 → 2026-06-02 · 4 obs

○ 2026-06-01 17:09:50
● 2026-06-02 10:05:56
○ 2026-06-03 19:36:34
○ 2026-06-18 14:50:36

○A13.35.23.642026-06-02 → 2026-06-02 · 4 obs

○ 2026-06-01 17:09:50
● 2026-06-02 10:05:56
○ 2026-06-03 19:36:34
○ 2026-06-18 14:50:36

○A18.245.206.142026-04-09 → 2026-06-15 · 27 obs

○ 2026-04-08 14:04:00
● 2026-04-09 05:37:50
○ 2026-04-09 06:44:36
○ 2026-04-12 07:15:20
● 2026-04-12 11:35:34
● 2026-04-19 14:50:12
○ 2026-04-20 15:27:36
○ 2026-04-26 14:39:04
● 2026-04-26 15:29:16
● 2026-04-26 21:26:16
○ 2026-04-28 08:55:52
○ 2026-04-28 18:05:22
● 2026-04-28 18:45:30
○ 2026-04-30 14:08:14
○ 2026-04-30 16:51:08
● 2026-05-01 06:43:30
● 2026-05-03 18:20:46
○ 2026-05-05 00:22:34
○ 2026-05-05 19:12:20
● 2026-05-05 21:45:46
● 2026-05-19 03:15:02
○ 2026-05-24 13:31:16
○ 2026-06-08 03:56:48
● 2026-06-09 12:56:32
● 2026-06-15 21:30:48
○ 2026-06-18 14:50:32
○ 2026-06-18 14:50:36

○A18.245.206.2062026-04-09 → 2026-06-15 · 27 obs

○A18.245.206.322026-04-09 → 2026-06-15 · 27 obs

○A18.245.206.842026-04-09 → 2026-06-15 · 27 obs

●A3.170.21.2212026-02-15 → 2026-06-18 · 11 obs

● 2026-02-15 22:13:16
○ 2026-02-16 10:29:00
● 2026-02-19 19:02:00
● 2026-02-21 00:37:26
○ 2026-02-24 13:02:18
○ 2026-04-19 14:50:12
● 2026-04-20 15:27:36
○ 2026-04-21 03:43:18
○ 2026-06-15 21:30:48
● 2026-06-18 14:50:32
● 2026-06-18 14:50:36

●A3.170.21.652026-02-15 → 2026-06-18 · 11 obs

●A3.170.21.722026-02-15 → 2026-06-18 · 11 obs

●A3.170.21.922026-02-15 → 2026-06-18 · 11 obs

○A3.171.118.1992026-02-16 → 2026-02-16 · 4 obs

○ 2026-02-15 22:13:16
● 2026-02-16 10:29:00
○ 2026-02-19 19:02:00
○ 2026-06-18 14:50:36

○A3.171.118.492026-02-16 → 2026-02-16 · 4 obs

○ 2026-02-15 22:13:16
● 2026-02-16 10:29:00
○ 2026-02-19 19:02:00
○ 2026-06-18 14:50:36

○A3.171.118.782026-02-16 → 2026-02-16 · 4 obs

○ 2026-02-15 22:13:16
● 2026-02-16 10:29:00
○ 2026-02-19 19:02:00
○ 2026-06-18 14:50:36

○A3.171.118.82026-02-16 → 2026-02-16 · 4 obs

○ 2026-02-15 22:13:16
● 2026-02-16 10:29:00
○ 2026-02-19 19:02:00
○ 2026-06-18 14:50:36

○A52.85.60.1472026-05-24 → 2026-06-08 · 11 obs

○ 2026-05-19 03:15:02
● 2026-05-24 13:31:16
● 2026-05-25 06:05:00
○ 2026-05-30 01:55:06
○ 2026-06-01 12:27:48
● 2026-06-01 17:09:50
○ 2026-06-02 10:05:56
● 2026-06-03 19:36:34
● 2026-06-08 03:56:48
○ 2026-06-09 12:56:32
○ 2026-06-18 14:50:36

○A52.85.60.1622026-05-24 → 2026-06-08 · 11 obs

○A52.85.60.2192026-05-24 → 2026-06-08 · 11 obs

○A52.85.60.712026-05-24 → 2026-06-08 · 11 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
aws	dns1.nic.aws, dns2.nic.aws, dns3.nic.aws, dns4.nic.aws...	16 records
skillbuilder.aws	ns-1972.awsdns-54.co.uk, ns-344.awsdns-43.com, ns-741.awsdns-28.net, ns-1440.awsdns-52.org	-
auth.skillbuilder.aws	ns-1264.awsdns-30.org, ns-1718.awsdns-22.co.uk, ns-290.awsdns-36.com, ns-719.awsdns-25.net	-

✅ Authoritative Response

Server:205.251.196.240

NS records: ns-1264.awsdns-30.org, ns-1718.awsdns-22.co.uk, ns-290.awsdns-36.com, ns-719.awsdns-25.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for skillbuilder.aws (unsigned zone)

⏱️ Timing

Total: 1351ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`3.170.21.92, 3.170.21.221...`
NS	4	`ns-1264.awsdns-30.org, ns-1718.awsdns-22.co.uk...`
SOA	1	`ns-1264.awsdns-30.org awsdns-hostmaster.`

📌 Glue Records Collected

Total: 16

In-bailiwick: 16 (dns1.nic.aws, dns1.nic.aws, dns2.nic.aws...)

Analysis

Hierarchy

us-east-1.auth.skillbuilder.aws is a subdomain of auth.skillbuilder.aws.

IP Addresses

auth.skillbuilder.aws directs to four IP numbers, which are 3.170.21.65, 3.170.21.72, 3.170.21.92 and 3.170.21.221.

d32vc0vg5ob6za.cloudfront.net, d2kl333iheywy2.cloudfront.net, dwn0odqttrkhc.cloudfront.net and two other host names share IP numbers with auth.skillbuilder.aws.

Name Servers

The authoritative name servers for auth.skillbuilder.aws are ns-290.awsdns-36.com, ns-719.awsdns-25.net, ns-1264.awsdns-30.org and ns-1718.awsdns-22.co.uk.

The name servers of auth.skillbuilder.aws overlap at least partially with those of other domains — among them 58.77.161.in-addr.arpa, nouvellesgraphiques.be, experienceis.it and two more.

Each of the four hosts ns-290.awsdns-36.com, ns-719.awsdns-25.net, ns-1264.awsdns-30.org and ns-1718.awsdns-22.co.uk has two IP addresses. ns-290.awsdns-36.com points to 205.251.193.34 and 2600:9000:5301:2200::1. ns-719.awsdns-25.net points to 205.251.194.207 and 2600:9000:5302:cf00::1. ns-1264.awsdns-30.org points to 205.251.196.240 and 2600:9000:5304:f000::1. ns-1718.awsdns-22.co.uk points to 205.251.198.182 and 2600:9000:5306:b600::1.