`skillbuilder.io`

DNSSEC	⚠️ Not signed
A	3.162.112.17^{🇺🇸 Amazon3.162.112.0/21}
		PTR	`server-3-162-112-17.iad61.r.cloudfront.net`
A	3.162.112.19^{🇺🇸 Amazon3.162.112.0/21}
A	3.162.112.100^{🇺🇸 Amazon3.162.112.0/21}
A	3.162.112.116^{🇺🇸 Amazon3.162.112.0/21}
NS	`ns-1303.awsdns-34.org` ⭐
		A	2600:9000:5305:1700::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1303.awsdns-34.org`
		A	205.251.197.23^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1303.awsdns-34.org`
NS	`ns-1639.awsdns-12.co.uk`
		A	2600:9000:5306:6700::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1639.awsdns-12.co.uk`
		A	205.251.198.103^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1639.awsdns-12.co.uk`
NS	`ns-173.awsdns-21.com`
		A	2600:9000:5300:ad00::1^{🇺🇸 Amazon2600:9000:5300::/48 - CloudFront}
			PTR	`ns-173.awsdns-21.com`
		A	205.251.192.173^{🇺🇸 Amazon205.251.192.0/24 prefix}
			PTR	`ns-173.awsdns-21.com`
NS	`ns-718.awsdns-25.net`
		A	2600:9000:5302:ce00::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-718.awsdns-25.net`
		A	205.251.194.206^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-718.awsdns-25.net`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4023:c06::1a^{🇺🇸 Google2607:f8b0::/32}
			PTR	`dz-in-f26.1e100.net`
		A	142.250.101.27^{🇺🇸 Google142.250.101.0/24}
			PTR	`dz-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2607:f8b0:4023:2801::1b^{🇺🇸 Google2607:f8b0::/32}
			PTR	`lcausi-in-f27.1e100.net`
		A	192.178.128.26^{🇺🇸 Google192.178.128.0/24}
			PTR	`lcausi-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2607:f8b0:4023:1015::1b^{🇺🇸 Google2607:f8b0::/32}
			PTR	`yudfwta-in-f27.1e100.net`
		A	172.253.135.27^{🇺🇸 Google172.253.135.0/24}
			PTR	`yudfwta-in-f27.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4001:c21::1b^{🇩🇪 Google2a00:1450:4001::/48}
			PTR	`lcfrai-in-f27.1e100.net`
		A	142.251.127.27^{🇺🇸 Google142.251.127.0/24}
			PTR	`lcfrai-in-f27.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2607:f8b0:4003:c4a::1a^{🇺🇸 Google2607:f8b0:4003::/48}
			PTR	`yutulth-in-f26.1e100.net`
		A	142.251.96.26^{🇺🇸 Google142.250.0.0/15}
			PTR	`yutulth-in-f26.1e100.net`
TXT	`amazonses:3e8qDqUUJVV4/fGNenLtxBy4J40IAfimwYwmzpJv6qA=`
TXT	`google-site-verification=1hII9FifrCnkYkgYiBTuhPHLfL1p0rCCyiEPbEcREeU`
TXT	`v=spf1 include:_spf.google.com include:amazonses.com ~all`
SOA	`ns-1303.awsdns-34.org`awsdns-hostmaster@amazon.com serial=1

`io`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.nic.io` ⭐
	NS	`a2.nic.io`
	NS	`b0.nic.io`
	NS	`c0.nic.io`
	SOA	`a0.nic.io`hostmaster@donuts.email serial=1774430800

Same first word

skillbuilder.ca

skillbuilder.com

skillbuilder.org

skillbuilder.io

skillbuilder.co

skillbuilder.in

skillbuilder.aws

skillbuilder.net

DNS History

29 records (13 active, 16 former)

●NSns-1303.awsdns-34.org2026-02-15 → 2026-03-25 · 2 obs

● 2026-02-15 12:41:08
● 2026-03-25 09:32:00

●NSns-1639.awsdns-12.co.uk2026-02-15 → 2026-03-25 · 2 obs

● 2026-02-15 12:41:08
● 2026-03-25 09:32:00

●NSns-173.awsdns-21.com2026-02-15 → 2026-03-25 · 2 obs

● 2026-02-15 12:41:08
● 2026-03-25 09:32:00

●NSns-718.awsdns-25.net2026-02-15 → 2026-03-25 · 2 obs

● 2026-02-15 12:41:08
● 2026-03-25 09:32:00

●MXalt1.aspmx.l.google.com2026-02-15 → 2026-03-25 · 2 obs

● 2026-02-15 12:41:08
● 2026-03-25 09:32:00

●MXalt2.aspmx.l.google.com2026-02-15 → 2026-03-25 · 2 obs

● 2026-02-15 12:41:08
● 2026-03-25 09:32:00

●MXalt3.aspmx.l.google.com2026-02-15 → 2026-03-25 · 2 obs

● 2026-02-15 12:41:08
● 2026-03-25 09:32:00

●MXalt4.aspmx.l.google.com2026-02-15 → 2026-03-25 · 2 obs

● 2026-02-15 12:41:08
● 2026-03-25 09:32:00

●MXaspmx.l.google.com2026-02-15 → 2026-03-25 · 2 obs

● 2026-02-15 12:41:08
● 2026-03-25 09:32:00

○A13.35.78.342026-02-16 → 2026-02-16 · 4 obs

○ 2026-02-15 12:41:08
● 2026-02-16 13:30:28
○ 2026-02-17 04:45:36
○ 2026-03-25 09:32:00

○A13.35.78.412026-02-16 → 2026-02-16 · 4 obs

○ 2026-02-15 12:41:08
● 2026-02-16 13:30:28
○ 2026-02-17 04:45:36
○ 2026-03-25 09:32:00

○A13.35.78.772026-02-16 → 2026-02-16 · 4 obs

○ 2026-02-15 12:41:08
● 2026-02-16 13:30:28
○ 2026-02-17 04:45:36
○ 2026-03-25 09:32:00

○A13.35.78.782026-02-16 → 2026-02-16 · 4 obs

○ 2026-02-15 12:41:08
● 2026-02-16 13:30:28
○ 2026-02-17 04:45:36
○ 2026-03-25 09:32:00

○A18.244.179.112026-02-18 → 2026-03-25 · 44 obs

○ 2026-02-17 04:45:36
● 2026-02-18 01:16:34
○ 2026-02-18 20:39:44
○ 2026-02-19 05:26:48
● 2026-02-19 15:38:00
○ 2026-02-19 20:31:14
○ 2026-02-19 22:40:42
● 2026-02-20 19:21:38
● 2026-02-21 12:49:22
○ 2026-02-21 13:36:10
○ 2026-02-23 19:57:34
● 2026-02-23 22:43:48
○ 2026-02-24 23:16:40
○ 2026-02-26 02:54:56
● 2026-02-26 05:03:52
● 2026-03-01 12:28:42
○ 2026-03-02 21:19:52
● 2026-03-02 22:03:06
○ 2026-03-03 07:49:28
○ 2026-03-03 11:26:34
● 2026-03-04 01:46:30
○ 2026-03-05 14:42:28
○ 2026-03-07 02:55:58
● 2026-03-08 04:07:12
○ 2026-03-09 16:00:22
○ 2026-03-12 02:25:04
● 2026-03-12 06:28:32
○ 2026-03-12 07:30:22
○ 2026-03-13 00:05:20
● 2026-03-13 13:13:10
○ 2026-03-14 00:12:38
● 2026-03-14 18:28:00
○ 2026-03-15 09:27:52
● 2026-03-15 16:40:24
● 2026-03-16 16:45:36
○ 2026-03-17 16:04:50
○ 2026-03-18 11:17:26
● 2026-03-18 13:21:28
● 2026-03-18 13:57:18
○ 2026-03-21 19:18:48
○ 2026-03-24 14:21:54
● 2026-03-25 01:05:48
○ 2026-03-25 05:05:04
○ 2026-03-25 09:32:00

○A18.244.179.1122026-02-18 → 2026-03-25 · 44 obs

○A18.244.179.272026-02-18 → 2026-03-25 · 44 obs

○A18.244.179.442026-02-18 → 2026-03-25 · 44 obs

●A3.162.112.1002026-02-19 → 2026-03-25 · 36 obs

○ 2026-02-18 20:39:44
● 2026-02-19 05:26:48
○ 2026-02-19 15:38:00
○ 2026-02-21 12:49:22
● 2026-02-21 13:36:10
● 2026-02-22 15:07:12
○ 2026-02-23 19:57:34
○ 2026-02-23 22:43:48
● 2026-02-24 23:16:40
○ 2026-02-26 02:54:56
○ 2026-03-04 01:46:30
● 2026-03-05 14:42:28
● 2026-03-07 02:55:58
○ 2026-03-08 04:07:12
● 2026-03-09 16:00:22
● 2026-03-10 12:43:54
○ 2026-03-12 02:25:04
○ 2026-03-13 13:13:10
● 2026-03-14 00:12:38
○ 2026-03-14 18:28:00
○ 2026-03-16 16:45:36
● 2026-03-17 16:04:50
● 2026-03-17 17:47:08
○ 2026-03-18 01:33:14
○ 2026-03-18 02:56:00
● 2026-03-18 06:04:38
○ 2026-03-18 11:17:26
○ 2026-03-18 13:57:18
● 2026-03-21 19:18:48
○ 2026-03-22 23:13:20
○ 2026-03-23 02:27:18
● 2026-03-23 04:17:44
○ 2026-03-24 14:21:54
○ 2026-03-25 08:27:46
● 2026-03-25 09:31:58
● 2026-03-25 09:32:00

●A3.162.112.1162026-02-19 → 2026-03-25 · 36 obs

●A3.162.112.172026-02-19 → 2026-03-25 · 36 obs

●A3.162.112.192026-02-19 → 2026-03-25 · 36 obs

○A3.164.68.1042026-03-22 → 2026-03-25 · 9 obs

○ 2026-03-21 19:18:48
● 2026-03-22 23:13:20
● 2026-03-23 02:27:18
○ 2026-03-23 04:17:44
● 2026-03-24 14:21:54
○ 2026-03-25 01:05:48
● 2026-03-25 05:05:04
○ 2026-03-25 08:27:46
○ 2026-03-25 09:32:00

○A3.164.68.302026-03-22 → 2026-03-25 · 9 obs

○A3.164.68.542026-03-22 → 2026-03-25 · 9 obs

○A3.164.68.582026-03-22 → 2026-03-25 · 9 obs

○A52.222.244.1122026-02-15 → 2026-03-25 · 41 obs

● 2026-02-15 12:41:08
○ 2026-02-16 13:30:28
● 2026-02-17 04:45:36
○ 2026-02-18 01:16:34
● 2026-02-18 20:39:44
○ 2026-02-19 05:26:48
○ 2026-02-19 15:38:00
● 2026-02-19 20:31:14
● 2026-02-19 22:40:42
○ 2026-02-20 19:21:38
○ 2026-02-22 15:07:12
● 2026-02-23 19:57:34
○ 2026-02-23 22:43:48
○ 2026-02-24 23:16:40
● 2026-02-26 02:54:56
○ 2026-02-26 05:03:52
○ 2026-03-01 12:28:42
● 2026-03-02 21:19:52
○ 2026-03-02 22:03:06
● 2026-03-03 07:49:28
● 2026-03-03 11:26:34
○ 2026-03-04 01:46:30
○ 2026-03-10 12:43:54
● 2026-03-12 02:25:04
○ 2026-03-12 06:28:32
● 2026-03-12 07:30:22
● 2026-03-13 00:05:20
○ 2026-03-13 13:13:10
○ 2026-03-14 18:28:00
● 2026-03-15 09:27:52
○ 2026-03-15 16:40:24
○ 2026-03-17 17:47:08
● 2026-03-18 01:33:14
● 2026-03-18 02:56:00
○ 2026-03-18 06:04:38
● 2026-03-18 11:17:26
○ 2026-03-18 13:21:28
○ 2026-03-25 05:05:04
● 2026-03-25 08:27:46
○ 2026-03-25 09:31:58
○ 2026-03-25 09:32:00

○A52.222.244.142026-02-15 → 2026-03-25 · 41 obs

○A52.222.244.172026-02-15 → 2026-03-25 · 41 obs

○A52.222.244.272026-02-15 → 2026-03-25 · 41 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
io	a0.nic.io, a2.nic.io, b0.nic.io, c0.nic.io	-
skillbuilder.io	ns-1639.awsdns-12.co.uk, ns-1303.awsdns-34.org, ns-173.awsdns-21.com, ns-718.awsdns-25.net	-

✅ Authoritative Response

Server:205.251.194.206

NS records: ns-1639.awsdns-12.co.uk, ns-1303.awsdns-34.org, ns-173.awsdns-21.com, ns-718.awsdns-25.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for skillbuilder.io (unsigned zone)

⏱️ Timing

Total: 617ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`3.162.112.17, 3.162.112.116...`
NS	4	`ns-1303.awsdns-34.org, ns-1639.awsdns-12.co.uk...`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	3	`amazonses:3e8qDqUUJVV4/fGNenLtxBy4J40IAf, google-site-verification=1hII9FifrCnkYkg...`
SOA	1	`ns-1303.awsdns-34.org awsdns-hostmaster.`

Analysis

IP Addresses

skillbuilder.io points to four IP numbers: 3.162.112.17, 3.162.112.19, 3.162.112.100 and 3.162.112.116.

Other host names including weathermaps.de, d19vys4zv75dnd.cloudfront.net, www.photoways.fr, server-3-162-112-17.iad61.r.cloudfront.net and d10i1wps3cov4f.cloudfront.net share IP numbers with skillbuilder.io.

Name Servers

skillbuilder.io is delegated to four name servers: ns-173.awsdns-21.com, ns-718.awsdns-25.net, ns-1303.awsdns-34.org and ns-1639.awsdns-12.co.uk.

skillbuilder.io at least partially shares name servers with other domains, including episcopalschools.org, coremedia.mris.com, coinpro.ch, mojain.net and m9bet3.com.