simulearn.skillbuilder.aws - dns.ninja

`simulearn.skillbuilder.aws`

DNSSEC	⚠️ Not signed
A	18.165.98.6^{🇺🇸 Amazon18.165.96.0/21}
		PTR	`server-18-165-98-6.iad55.r.cloudfront.net`
A	18.165.98.12^{🇺🇸 Amazon18.165.96.0/21}
A	18.165.98.60^{🇺🇸 Amazon18.165.96.0/21}
A	18.165.98.87^{🇺🇸 Amazon18.165.96.0/21}
NS	`ns-939.awsdns-53.net` ⭐
		A	2600:9000:5303:ab00::1^{🇺🇸 Amazon2600:9000:5303::/48 - CloudFront}
			PTR	`ns-939.awsdns-53.net`
		A	205.251.195.171^{🇺🇸 Amazon205.251.195.0/24 prefix}
			PTR	`ns-939.awsdns-53.net`
NS	`ns-1251.awsdns-28.org`
		A	2600:9000:5304:e300::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1251.awsdns-28.org`
		A	205.251.196.227^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1251.awsdns-28.org`
NS	`ns-2030.awsdns-61.co.uk`
		A	2600:9000:5307:ee00::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-2030.awsdns-61.co.uk`
		A	205.251.199.238^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-2030.awsdns-61.co.uk`
NS	`ns-393.awsdns-49.com`
		A	2600:9000:5301:8900::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-393.awsdns-49.com`
		A	205.251.193.137^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-393.awsdns-49.com`
SOA	`ns-939.awsdns-53.net`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 #59301 globally
rank #3 in the tld

skillbuilder.aws

skillbuilder.aws is the official domain for AWS Skill Builder, Amazon Web Services' online learning platform.

Key facts

Owner / operator: Amazon Web Services (AWS) / Amazon.com, Inc.
TLD: .aws— gTLD
Primary purpose: online learning and training platform for AWS cloud services
Status: active

📈 Tranco rank: #32,308

Same first word

simulearn.net

simulearn.it

simulearn.ai

simulearn.ir

Similar names

DNS History

56 records (8 active, 48 former)

●NSns-1251.awsdns-28.org2026-06-14 → 2026-08-11 · 2 obs

● 2026-06-14 23:12:34
● 2026-08-11 21:44:42

●NSns-2030.awsdns-61.co.uk2026-06-14 → 2026-08-11 · 2 obs

● 2026-06-14 23:12:34
● 2026-08-11 21:44:42

●NSns-393.awsdns-49.com2026-06-14 → 2026-08-11 · 2 obs

● 2026-06-14 23:12:34
● 2026-08-11 21:44:42

●NSns-939.awsdns-53.net2026-06-14 → 2026-08-11 · 2 obs

● 2026-06-14 23:12:34
● 2026-08-11 21:44:42

○A108.158.137.1142026-07-03 → 2026-07-27 · 10 obs

○ 2026-07-02 19:00:58
● 2026-07-03 01:52:18
○ 2026-07-03 05:56:28
● 2026-07-24 07:37:48
○ 2026-07-26 06:36:24
● 2026-07-27 03:07:54
○ 2026-07-27 09:54:44
● 2026-07-27 22:36:26
○ 2026-07-28 01:15:16
○ 2026-08-11 21:44:42

○A108.158.137.322026-07-03 → 2026-07-27 · 10 obs

○A108.158.137.652026-07-03 → 2026-07-27 · 10 obs

○A108.158.137.842026-07-03 → 2026-07-27 · 10 obs

○A13.225.143.1102026-06-18 → 2026-07-29 · 31 obs

○ 2026-06-18 11:07:26
● 2026-06-18 13:42:34
○ 2026-06-18 14:34:16
● 2026-06-18 15:29:02
○ 2026-06-18 21:59:04
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● 2026-06-23 12:05:38
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○ 2026-08-11 21:44:42

○A13.225.143.272026-06-18 → 2026-07-29 · 31 obs

○A13.225.143.742026-06-18 → 2026-07-29 · 31 obs

○A13.225.143.892026-06-18 → 2026-07-29 · 31 obs

○A13.227.173.342026-07-27 → 2026-07-28 · 8 obs

○ 2026-07-27 03:07:54
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● 2026-07-28 15:14:52
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○A13.227.173.512026-07-27 → 2026-07-28 · 8 obs

○ 2026-07-27 03:07:54
● 2026-07-27 09:54:44
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○A13.227.173.632026-07-27 → 2026-07-28 · 8 obs

○ 2026-07-27 03:07:54
● 2026-07-27 09:54:44
○ 2026-07-27 11:21:04
● 2026-07-27 15:46:48
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○A13.227.173.812026-07-27 → 2026-07-28 · 8 obs

○ 2026-07-27 03:07:54
● 2026-07-27 09:54:44
○ 2026-07-27 11:21:04
● 2026-07-27 15:46:48
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○ 2026-08-11 21:44:42

○A13.32.16.1262026-06-15 → 2026-08-11 · 34 obs

○ 2026-06-14 23:12:34
● 2026-06-15 16:00:06
○ 2026-06-15 16:48:10
○ 2026-06-16 11:16:46
● 2026-06-16 11:49:04
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● 2026-06-30 23:05:32
● 2026-07-01 18:28:44
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● 2026-07-05 09:46:46
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● 2026-07-12 21:01:26
○ 2026-07-14 00:05:42
● 2026-07-14 23:43:34
○ 2026-07-17 11:29:50
● 2026-07-18 20:40:58
○ 2026-07-24 07:37:48
● 2026-07-31 05:54:26
○ 2026-07-31 21:22:20
○ 2026-08-01 20:16:12
● 2026-08-02 19:21:26
○ 2026-08-03 16:45:22
● 2026-08-04 19:32:40
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○ 2026-08-09 13:05:00
● 2026-08-09 21:59:22
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● 2026-08-11 03:25:46
○ 2026-08-11 05:33:18
● 2026-08-11 12:04:34
○ 2026-08-11 16:49:48
○ 2026-08-11 21:44:42

○A13.32.16.1282026-06-15 → 2026-08-11 · 34 obs

○A13.32.16.872026-06-15 → 2026-08-11 · 34 obs

○A13.32.16.982026-06-15 → 2026-08-11 · 34 obs

○A13.33.109.212026-08-02 → 2026-08-02 · 6 obs

○ 2026-08-01 20:16:12
● 2026-08-02 09:55:40
○ 2026-08-02 19:21:26
● 2026-08-02 19:59:30
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○ 2026-08-11 21:44:42

○A13.33.109.492026-08-02 → 2026-08-02 · 6 obs

○ 2026-08-01 20:16:12
● 2026-08-02 09:55:40
○ 2026-08-02 19:21:26
● 2026-08-02 19:59:30
○ 2026-08-02 23:25:32
○ 2026-08-11 21:44:42

○A13.33.109.902026-08-02 → 2026-08-02 · 6 obs

○ 2026-08-01 20:16:12
● 2026-08-02 09:55:40
○ 2026-08-02 19:21:26
● 2026-08-02 19:59:30
○ 2026-08-02 23:25:32
○ 2026-08-11 21:44:42

○A13.33.109.942026-08-02 → 2026-08-02 · 6 obs

○ 2026-08-01 20:16:12
● 2026-08-02 09:55:40
○ 2026-08-02 19:21:26
● 2026-08-02 19:59:30
○ 2026-08-02 23:25:32
○ 2026-08-11 21:44:42

○A13.33.235.1012026-08-05 → 2026-08-09 · 8 obs

○ 2026-08-05 06:21:58
● 2026-08-05 12:07:14
○ 2026-08-05 12:40:10
● 2026-08-07 01:36:10
○ 2026-08-07 05:04:40
● 2026-08-09 02:55:14
○ 2026-08-09 04:09:42
○ 2026-08-11 21:44:42

○A13.33.235.1122026-08-05 → 2026-08-09 · 8 obs

○ 2026-08-05 06:21:58
● 2026-08-05 12:07:14
○ 2026-08-05 12:40:10
● 2026-08-07 01:36:10
○ 2026-08-07 05:04:40
● 2026-08-09 02:55:14
○ 2026-08-09 04:09:42
○ 2026-08-11 21:44:42

○A13.33.235.122026-08-05 → 2026-08-09 · 8 obs

○ 2026-08-05 06:21:58
● 2026-08-05 12:07:14
○ 2026-08-05 12:40:10
● 2026-08-07 01:36:10
○ 2026-08-07 05:04:40
● 2026-08-09 02:55:14
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○ 2026-08-11 21:44:42

○A13.33.235.1292026-08-05 → 2026-08-09 · 8 obs

○ 2026-08-05 06:21:58
● 2026-08-05 12:07:14
○ 2026-08-05 12:40:10
● 2026-08-07 01:36:10
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○ 2026-08-11 21:44:42

●A18.165.98.122026-06-15 → 2026-08-11 · 35 obs

○ 2026-06-15 16:00:06
● 2026-06-15 16:48:10
● 2026-06-15 17:23:12
○ 2026-06-16 00:33:20
○ 2026-06-18 11:07:26
● 2026-06-18 23:20:30
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● 2026-06-29 11:36:32
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● 2026-07-03 05:56:28
○ 2026-07-03 16:08:56
○ 2026-07-05 07:49:50
● 2026-07-07 17:49:22
● 2026-07-09 00:03:56
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○ 2026-07-11 22:23:44
● 2026-08-03 00:33:52
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● 2026-08-11 10:12:58
○ 2026-08-11 12:04:34
● 2026-08-11 16:49:48
● 2026-08-11 21:44:42

●A18.165.98.62026-06-15 → 2026-08-11 · 35 obs

●A18.165.98.602026-06-15 → 2026-08-11 · 35 obs

●A18.165.98.872026-06-15 → 2026-08-11 · 35 obs

○A18.173.166.102026-06-16 → 2026-07-27 · 10 obs

○ 2026-06-16 12:31:58
● 2026-06-16 14:23:34
● 2026-06-16 17:35:58
○ 2026-06-16 18:49:54
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● 2026-07-27 16:19:46
○ 2026-07-27 17:44:56
○ 2026-08-11 21:44:42

○A18.173.166.492026-06-16 → 2026-07-27 · 10 obs

○A18.173.166.882026-06-16 → 2026-07-27 · 10 obs

○A18.173.166.92026-06-16 → 2026-07-27 · 10 obs

○A18.65.25.192026-07-04 → 2026-08-11 · 33 obs

○ 2026-07-03 16:08:56
● 2026-07-04 08:21:16
○ 2026-07-04 09:25:00
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○ 2026-08-11 10:12:58
○ 2026-08-11 21:44:42

○A18.65.25.662026-07-04 → 2026-08-11 · 33 obs

○A18.65.25.802026-07-04 → 2026-08-11 · 33 obs

○A18.65.25.812026-07-04 → 2026-08-11 · 33 obs

○A3.162.103.1052026-08-04 → 2026-08-04 · 4 obs

○ 2026-08-04 00:54:50
● 2026-08-04 05:35:18
○ 2026-08-04 10:01:16
○ 2026-08-11 21:44:42

○A3.162.103.1082026-08-04 → 2026-08-04 · 4 obs

○ 2026-08-04 00:54:50
● 2026-08-04 05:35:18
○ 2026-08-04 10:01:16
○ 2026-08-11 21:44:42

○A3.162.103.1212026-08-04 → 2026-08-04 · 4 obs

○ 2026-08-04 00:54:50
● 2026-08-04 05:35:18
○ 2026-08-04 10:01:16
○ 2026-08-11 21:44:42

○A3.162.103.282026-08-04 → 2026-08-04 · 4 obs

○ 2026-08-04 00:54:50
● 2026-08-04 05:35:18
○ 2026-08-04 10:01:16
○ 2026-08-11 21:44:42

○A3.166.192.272026-07-12 → 2026-08-01 · 31 obs

○ 2026-07-11 22:23:44
● 2026-07-12 16:19:48
○ 2026-07-12 21:01:26
● 2026-07-14 00:05:42
○ 2026-07-14 02:36:30
● 2026-07-14 11:46:58
○ 2026-07-14 23:43:34
● 2026-07-17 11:29:50
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● 2026-07-18 06:11:12
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● 2026-07-26 06:36:24
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● 2026-08-01 18:02:50
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● 2026-08-01 20:16:12
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○ 2026-08-11 21:44:42

○A3.166.192.42026-07-12 → 2026-08-01 · 31 obs

○A3.166.192.532026-07-12 → 2026-08-01 · 31 obs

○A3.166.192.942026-07-12 → 2026-08-01 · 31 obs

○A52.85.12.1292026-06-30 → 2026-07-01 · 8 obs

○ 2026-06-30 07:12:28
● 2026-06-30 08:54:08
○ 2026-06-30 10:54:48
● 2026-07-01 15:56:58
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● 2026-07-01 23:39:06
○ 2026-07-02 01:02:18
○ 2026-08-11 21:44:42

○A52.85.12.222026-06-30 → 2026-07-01 · 8 obs

○ 2026-06-30 07:12:28
● 2026-06-30 08:54:08
○ 2026-06-30 10:54:48
● 2026-07-01 15:56:58
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● 2026-07-01 23:39:06
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○A52.85.12.322026-06-30 → 2026-07-01 · 8 obs

○ 2026-06-30 07:12:28
● 2026-06-30 08:54:08
○ 2026-06-30 10:54:48
● 2026-07-01 15:56:58
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● 2026-07-01 23:39:06
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○A52.85.12.742026-06-30 → 2026-07-01 · 8 obs

○ 2026-06-30 07:12:28
● 2026-06-30 08:54:08
○ 2026-06-30 10:54:48
● 2026-07-01 15:56:58
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● 2026-07-01 23:39:06
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○ 2026-08-11 21:44:42

○A99.86.12.1092026-06-14 → 2026-06-30 · 30 obs

● 2026-06-14 23:12:34
○ 2026-06-15 16:00:06
○ 2026-06-15 17:23:12
● 2026-06-16 00:33:20
○ 2026-06-16 11:16:46
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● 2026-06-19 01:59:54
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○A99.86.12.352026-06-14 → 2026-06-30 · 30 obs

○A99.86.12.402026-06-14 → 2026-06-30 · 30 obs

○A99.86.12.612026-06-14 → 2026-06-30 · 30 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
aws	dns4.nic.aws, dnsa.nic.aws, dnsd.nic.aws, dns3.nic.aws...	16 records
skillbuilder.aws	ns-344.awsdns-43.com, ns-741.awsdns-28.net, ns-1440.awsdns-52.org, ns-1972.awsdns-54.co.uk	-
simulearn.skillbuilder.aws	ns-1251.awsdns-28.org, ns-2030.awsdns-61.co.uk, ns-393.awsdns-49.com, ns-939.awsdns-53.net	-

✅ Authoritative Response

Server:205.251.196.227

NS records: ns-1251.awsdns-28.org, ns-2030.awsdns-61.co.uk, ns-393.awsdns-49.com, ns-939.awsdns-53.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for skillbuilder.aws (unsigned zone)

⏱️ Timing

Total: 2642ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`18.165.98.6, 18.165.98.60...`
NS	4	`ns-1251.awsdns-28.org, ns-2030.awsdns-61.co.uk...`
SOA	1	`ns-939.awsdns-53.net awsdns-hostmaster.a`

📌 Glue Records Collected

Total: 16

In-bailiwick: 16 (dns1.nic.aws, dns2.nic.aws, dns3.nic.aws...)

Analysis

IP Addresses

simulearn.skillbuilder.aws points to the four IP addresses 18.165.98.6, 18.165.98.12, 18.165.98.60 and 18.165.98.87.

secure.dentr.co.uk, api.taxanalysts.org, browndust2.kr plus two other host names have IP numbers in common with simulearn.skillbuilder.aws.

Name Servers

Four name servers handle the delegation for simulearn.skillbuilder.aws: ns-393.awsdns-49.com, ns-939.awsdns-53.net, ns-1251.awsdns-28.org and ns-2030.awsdns-61.co.uk.

The name servers of simulearn.skillbuilder.aws overlap at least partially with those of other domains — among them dd466wv277le0.cloudfront.net, d3ark3w4oflfom.cloudfront.net, englishtown.es and two more.

Each of the four hosts ns-393.awsdns-49.com, ns-939.awsdns-53.net, ns-1251.awsdns-28.org and ns-2030.awsdns-61.co.uk has two IP addresses. ns-393.awsdns-49.com points to 205.251.193.137 and 2600:9000:5301:8900::1. ns-939.awsdns-53.net points to 205.251.195.171 and 2600:9000:5303:ab00::1. ns-1251.awsdns-28.org points to 205.251.196.227 and 2600:9000:5304:e300::1. ns-2030.awsdns-61.co.uk points to 205.251.199.238 and 2600:9000:5307:ee00::1.