skillbuilder.org - dns.ninja

`skillbuilder.org`

DNSSEC	⚠️ Not signed
A	75.2.127.147^{🇺🇸 Amazon75.2.112.0/20}
		PTR	`abad4d10cf6f94c47.awsglobalaccelerator.com`
A	99.83.255.24^{🇺🇸 Amazon99.83.240.0/20}
NS	`ns-1135.awsdns-13.org` ⭐
		A	2600:9000:5304:6f00::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1135.awsdns-13.org`
		A	205.251.196.111^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1135.awsdns-13.org`
NS	`ns-116.awsdns-14.com`
		A	2600:9000:5300:7400::1^{🇺🇸 Amazon2600:9000:5300::/48 - CloudFront}
			PTR	`ns-116.awsdns-14.com`
		A	205.251.192.116^{🇺🇸 Amazon205.251.192.0/24 prefix}
			PTR	`ns-116.awsdns-14.com`
NS	`ns-2005.awsdns-58.co.uk`
		A	2600:9000:5307:d500::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-2005.awsdns-58.co.uk`
		A	205.251.199.213^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-2005.awsdns-58.co.uk`
NS	`ns-799.awsdns-35.net`
		A	2600:9000:5303:1f00::1^{🇺🇸 Amazon2600:9000:5303::/48 - CloudFront}
			PTR	`ns-799.awsdns-35.net`
		A	205.251.195.31^{🇺🇸 Amazon205.251.195.0/24 prefix}
			PTR	`ns-799.awsdns-35.net`
TXT	`v=DMARC1; p=none`
SOA	`ns-1135.awsdns-13.org`awsdns-hostmaster@amazon.com serial=1

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1781817040

Same first word

skillbuilder.net

skillbuilder.ca

skillbuilder.com

skillbuilder.org

skillbuilder.io

skillbuilder.co

skillbuilder.in

skillbuilder.aws

DNS History

20 records (6 active, 14 former)

○NSdns1.name-services.com2015-05-19 → 2017-02-05 · 4 obs

● 2015-05-19 21:10:58
● 2017-02-05 02:16:22
○ 2018-10-18 04:21:58
○ 2026-06-18 21:22:54

○NSdns2.name-services.com2015-05-19 → 2017-02-05 · 4 obs

● 2015-05-19 21:10:58
● 2017-02-05 02:16:22
○ 2018-10-18 04:21:58
○ 2026-06-18 21:22:54

○NSdns3.name-services.com2015-05-19 → 2017-02-05 · 4 obs

● 2015-05-19 21:10:58
● 2017-02-05 02:16:22
○ 2018-10-18 04:21:58
○ 2026-06-18 21:22:54

○NSdns4.name-services.com2015-05-19 → 2017-02-05 · 4 obs

● 2015-05-19 21:10:58
● 2017-02-05 02:16:22
○ 2018-10-18 04:21:58
○ 2026-06-18 21:22:54

○NSdns5.name-services.com2015-05-19 → 2017-02-05 · 4 obs

● 2015-05-19 21:10:58
● 2017-02-05 02:16:22
○ 2018-10-18 04:21:58
○ 2026-06-18 21:22:54

●NSns-1135.awsdns-13.org2026-04-28 → 2026-06-18 · 3 obs

○ 2018-10-18 04:21:58
● 2026-04-28 12:40:06
● 2026-06-18 21:22:54

●NSns-116.awsdns-14.com2026-04-28 → 2026-06-18 · 3 obs

○ 2018-10-18 04:21:58
● 2026-04-28 12:40:06
● 2026-06-18 21:22:54

○NSns-1476.awsdns-56.org2026-04-28 → 2026-06-18 · 2 obs

○ 2026-04-28 12:40:06
○ 2026-06-18 21:22:54

○NSns-1824.awsdns-36.co.uk2026-04-28 → 2026-06-18 · 2 obs

○ 2026-04-28 12:40:06
○ 2026-06-18 21:22:54

●NSns-2005.awsdns-58.co.uk2026-04-28 → 2026-06-18 · 3 obs

○ 2018-10-18 04:21:58
● 2026-04-28 12:40:06
● 2026-06-18 21:22:54

○NSns-424.awsdns-53.com2026-04-28 → 2026-06-18 · 2 obs

○ 2026-04-28 12:40:06
○ 2026-06-18 21:22:54

●NSns-799.awsdns-35.net2026-04-28 → 2026-06-18 · 3 obs

○ 2018-10-18 04:21:58
● 2026-04-28 12:40:06
● 2026-06-18 21:22:54

○NSns-985.awsdns-59.net2026-04-28 → 2026-06-18 · 2 obs

○ 2026-04-28 12:40:06
○ 2026-06-18 21:22:54

○NSns1.namefind.com2018-10-18 → 2018-10-18 · 4 obs

○ 2017-02-05 02:16:22
● 2018-10-18 04:21:58
○ 2026-04-28 12:40:06
○ 2026-06-18 21:22:54

○NSns2.namefind.com2018-10-18 → 2018-10-18 · 4 obs

○ 2017-02-05 02:16:22
● 2018-10-18 04:21:58
○ 2026-04-28 12:40:06
○ 2026-06-18 21:22:54

○MXp.nsm.ctmail.com2015-05-19 → 2016-02-08 · 4 obs

● 2015-05-19 21:10:58
● 2016-02-08 05:40:36
○ 2016-06-18 20:24:06
○ 2026-06-18 21:22:54

○A68.178.213.612018-10-18 → 2018-10-18 · 4 obs

○ 2017-02-05 02:16:22
● 2018-10-18 04:21:58
○ 2026-04-28 12:40:06
○ 2026-06-18 21:22:54

●A75.2.127.1472026-04-28 → 2026-06-18 · 3 obs

○ 2018-10-18 04:21:58
● 2026-04-28 12:40:06
● 2026-06-18 21:22:54

○A8.5.1.412015-05-19 → 2017-02-05 · 4 obs

● 2015-05-19 21:10:58
● 2017-02-05 02:16:22
○ 2018-10-18 04:21:58
○ 2026-06-18 21:22:54

●A99.83.255.242026-04-28 → 2026-06-18 · 3 obs

○ 2018-10-18 04:21:58
● 2026-04-28 12:40:06
● 2026-06-18 21:22:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
skillbuilder.org	ns-799.awsdns-35.net, ns-1135.awsdns-13.org, ns-2005.awsdns-58.co.uk, ns-116.awsdns-14.com	2 records

✅ Authoritative Response

Server:205.251.199.213

NS records: ns-799.awsdns-35.net, ns-1135.awsdns-13.org, ns-2005.awsdns-58.co.uk, ns-116.awsdns-14.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for skillbuilder.org (unsigned zone)

⏱️ Timing

Total: 1184ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`75.2.127.147, 99.83.255.24`
NS	4	`ns-1135.awsdns-13.org, ns-116.awsdns-14.com...`
TXT	1	`v=DMARC1; p=none`
SOA	1	`ns-1135.awsdns-13.org awsdns-hostmaster.`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-1135.awsdns-13.org, ns-1135.awsdns-13.org)

Analysis

IP Addresses

skillbuilder.org directs to two IP numbers, 75.2.127.147 and 99.83.255.24

There are other host names — abad4d10cf6f94c47.awsglobalaccelerator.com among them — that share IP numbers with skillbuilder.org.

Name Servers

The authoritative name servers for skillbuilder.org are ns-116.awsdns-14.com, ns-799.awsdns-35.net, ns-1135.awsdns-13.org and ns-2005.awsdns-58.co.uk.

skillbuilder.org partially shares its NS delegation with several other domains, including cupixapis.com, hzro31.com, leaderisland.com and two others.

ns-116.awsdns-14.com, ns-799.awsdns-35.net, ns-1135.awsdns-13.org and ns-2005.awsdns-58.co.uk each carry two IP addresses. ns-116.awsdns-14.com has 205.251.192.116 and 2600:9000:5300:7400::1; ns-799.awsdns-35.net has 205.251.195.31 and 2600:9000:5303:1f00::1; ns-1135.awsdns-13.org has 205.251.196.111 and 2600:9000:5304:6f00::1; ns-2005.awsdns-58.co.uk has 205.251.199.213 and 2600:9000:5307:d500::1.