`contentauthoring.xps.skillbuilder.aws`

DNSSEC	⚠️ Not signed
A	13.35.107.81^{🇺🇸 Amazon13.35.107.0/24 -Cloudfront}
		PTR	`server-13-35-107-81.phl51.r.cloudfront.net`
A	13.35.107.83^{🇺🇸 Amazon13.35.107.0/24 -Cloudfront}
A	13.35.107.98^{🇺🇸 Amazon13.35.107.0/24 -Cloudfront}
A	13.35.107.109^{🇺🇸 Amazon13.35.107.0/24 -Cloudfront}
NS	`ns-1085.awsdns-07.org` ⭐
		A	2600:9000:5304:3d00::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1085.awsdns-07.org`
		A	205.251.196.61^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1085.awsdns-07.org`
NS	`ns-1763.awsdns-28.co.uk`
		A	2600:9000:5306:e300::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1763.awsdns-28.co.uk`
		A	205.251.198.227^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1763.awsdns-28.co.uk`
NS	`ns-645.awsdns-16.net`
		A	2600:9000:5302:8500::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-645.awsdns-16.net`
		A	205.251.194.133^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-645.awsdns-16.net`
NS	`ns-80.awsdns-10.com`
		A	2600:9000:5300:5000::1^{🇺🇸 Amazon2600:9000:5300::/48 - CloudFront}
			PTR	`ns-80.awsdns-10.com`
		A	205.251.192.80^{🇺🇸 Amazon205.251.192.0/24 prefix}
			PTR	`ns-80.awsdns-10.com`
SOA	`ns-1085.awsdns-07.org`awsdns-hostmaster@amazon.com serial=1

`xps.skillbuilder.aws`

DNSSEC

⚠️ Not signed

Same first word

contentauthoring.com

DNS History

60 records (8 active, 52 former)

●NSns-1085.awsdns-07.org2026-06-09 → 2026-07-29 · 2 obs

● 2026-06-09 19:53:30
● 2026-07-29 14:38:32

●NSns-1763.awsdns-28.co.uk2026-06-09 → 2026-07-29 · 2 obs

● 2026-06-09 19:53:30
● 2026-07-29 14:38:32

●NSns-645.awsdns-16.net2026-06-09 → 2026-07-29 · 2 obs

● 2026-06-09 19:53:30
● 2026-07-29 14:38:32

●NSns-80.awsdns-10.com2026-06-09 → 2026-07-29 · 2 obs

● 2026-06-09 19:53:30
● 2026-07-29 14:38:32

○A108.139.163.1052026-07-03 → 2026-07-28 · 18 obs

○ 2026-07-02 15:30:20
● 2026-07-03 05:18:56
○ 2026-07-04 04:21:08
● 2026-07-13 21:45:56
○ 2026-07-13 23:22:50
● 2026-07-14 11:17:34
○ 2026-07-14 12:38:26
● 2026-07-23 05:15:10
○ 2026-07-23 10:10:54
● 2026-07-24 13:14:24
○ 2026-07-24 21:08:30
● 2026-07-25 09:59:50
○ 2026-07-26 22:50:32
● 2026-07-27 18:32:12
○ 2026-07-27 22:07:20
● 2026-07-28 00:36:52
○ 2026-07-28 08:09:22
○ 2026-07-29 14:38:32

○A108.139.163.1152026-07-03 → 2026-07-28 · 18 obs

○A108.139.163.472026-07-03 → 2026-07-28 · 18 obs

○A108.139.163.902026-07-03 → 2026-07-28 · 18 obs

○A13.249.180.232026-07-28 → 2026-07-28 · 4 obs

○ 2026-07-28 11:03:32
● 2026-07-28 21:36:28
○ 2026-07-29 03:51:30
○ 2026-07-29 14:38:32

○A13.249.180.392026-07-28 → 2026-07-28 · 4 obs

○ 2026-07-28 11:03:32
● 2026-07-28 21:36:28
○ 2026-07-29 03:51:30
○ 2026-07-29 14:38:32

○A13.249.180.862026-07-28 → 2026-07-28 · 4 obs

○ 2026-07-28 11:03:32
● 2026-07-28 21:36:28
○ 2026-07-29 03:51:30
○ 2026-07-29 14:38:32

○A13.249.180.922026-07-28 → 2026-07-28 · 4 obs

○ 2026-07-28 11:03:32
● 2026-07-28 21:36:28
○ 2026-07-29 03:51:30
○ 2026-07-29 14:38:32

○A13.32.205.1052026-06-30 → 2026-07-02 · 6 obs

○ 2026-06-30 08:57:06
● 2026-06-30 15:39:10
○ 2026-06-30 20:48:06
● 2026-07-02 11:51:38
○ 2026-07-02 15:30:20
○ 2026-07-29 14:38:32

○A13.32.205.1062026-06-30 → 2026-07-02 · 6 obs

○ 2026-06-30 08:57:06
● 2026-06-30 15:39:10
○ 2026-06-30 20:48:06
● 2026-07-02 11:51:38
○ 2026-07-02 15:30:20
○ 2026-07-29 14:38:32

○A13.32.205.692026-06-30 → 2026-07-02 · 6 obs

○ 2026-06-30 08:57:06
● 2026-06-30 15:39:10
○ 2026-06-30 20:48:06
● 2026-07-02 11:51:38
○ 2026-07-02 15:30:20
○ 2026-07-29 14:38:32

○A13.32.205.92026-06-30 → 2026-07-02 · 6 obs

○ 2026-06-30 08:57:06
● 2026-06-30 15:39:10
○ 2026-06-30 20:48:06
● 2026-07-02 11:51:38
○ 2026-07-02 15:30:20
○ 2026-07-29 14:38:32

○A13.32.230.142026-07-07 → 2026-07-28 · 10 obs

○ 2026-07-04 04:21:08
● 2026-07-07 16:25:28
○ 2026-07-07 20:54:50
● 2026-07-23 10:10:54
○ 2026-07-23 15:54:46
● 2026-07-25 06:25:14
○ 2026-07-25 09:59:50
● 2026-07-28 08:09:22
○ 2026-07-28 10:14:00
○ 2026-07-29 14:38:32

○A13.32.230.372026-07-07 → 2026-07-28 · 10 obs

○A13.32.230.592026-07-07 → 2026-07-28 · 10 obs

○A13.32.230.912026-07-07 → 2026-07-28 · 10 obs

○A13.33.235.1192026-07-14 → 2026-07-20 · 6 obs

○ 2026-07-14 17:48:56
● 2026-07-14 18:39:14
○ 2026-07-15 07:00:42
● 2026-07-20 16:14:06
○ 2026-07-20 16:57:08
○ 2026-07-29 14:38:32

○A13.33.235.172026-07-14 → 2026-07-20 · 6 obs

○ 2026-07-14 17:48:56
● 2026-07-14 18:39:14
○ 2026-07-15 07:00:42
● 2026-07-20 16:14:06
○ 2026-07-20 16:57:08
○ 2026-07-29 14:38:32

○A13.33.235.242026-07-14 → 2026-07-20 · 6 obs

○ 2026-07-14 17:48:56
● 2026-07-14 18:39:14
○ 2026-07-15 07:00:42
● 2026-07-20 16:14:06
○ 2026-07-20 16:57:08
○ 2026-07-29 14:38:32

○A13.33.235.862026-07-14 → 2026-07-20 · 6 obs

○ 2026-07-14 17:48:56
● 2026-07-14 18:39:14
○ 2026-07-15 07:00:42
● 2026-07-20 16:14:06
○ 2026-07-20 16:57:08
○ 2026-07-29 14:38:32

●A13.35.107.1092026-07-13 → 2026-07-29 · 21 obs

○ 2026-07-12 11:47:16
● 2026-07-13 17:06:40
○ 2026-07-13 21:45:56
● 2026-07-14 12:38:26
○ 2026-07-14 17:48:56
● 2026-07-18 04:42:58
○ 2026-07-18 11:06:20
● 2026-07-19 23:50:26
○ 2026-07-20 01:15:20
● 2026-07-22 15:48:00
○ 2026-07-23 04:19:56
● 2026-07-23 18:43:16
○ 2026-07-23 19:34:10
● 2026-07-24 21:08:30
○ 2026-07-25 06:25:14
● 2026-07-26 23:39:12
○ 2026-07-27 11:05:10
● 2026-07-27 22:52:30
○ 2026-07-28 00:36:52
● 2026-07-29 03:51:30
● 2026-07-29 14:38:32

●A13.35.107.812026-07-13 → 2026-07-29 · 21 obs

●A13.35.107.832026-07-13 → 2026-07-29 · 21 obs

●A13.35.107.982026-07-13 → 2026-07-29 · 21 obs

○A18.160.18.112026-06-14 → 2026-07-11 · 39 obs

○ 2026-06-13 17:23:36
● 2026-06-14 20:47:28
○ 2026-06-15 02:59:02
○ 2026-06-15 23:46:16
● 2026-06-17 03:35:18
● 2026-06-17 09:45:44
○ 2026-06-17 18:10:26
○ 2026-06-18 07:41:00
● 2026-06-18 14:05:22
○ 2026-06-18 20:41:04
● 2026-06-20 16:14:30
○ 2026-06-21 07:24:20
● 2026-06-23 03:06:10
○ 2026-06-23 08:02:14
● 2026-06-23 18:11:22
○ 2026-06-23 21:13:58
● 2026-06-24 01:11:34
○ 2026-06-24 07:09:54
● 2026-06-24 07:54:18
○ 2026-06-24 19:15:16
● 2026-06-25 00:15:20
○ 2026-06-25 04:40:02
● 2026-06-25 20:56:52
○ 2026-06-25 22:18:10
● 2026-06-26 07:37:56
○ 2026-06-26 21:08:58
● 2026-06-27 12:25:34
○ 2026-06-27 13:04:24
● 2026-06-29 00:23:24
○ 2026-06-29 04:53:08
● 2026-06-30 07:20:16
○ 2026-06-30 08:57:06
● 2026-06-30 20:48:06
○ 2026-07-01 07:53:30
● 2026-07-11 02:49:24
○ 2026-07-11 04:10:52
● 2026-07-11 23:04:34
○ 2026-07-12 11:47:16
○ 2026-07-29 14:38:32

○A18.160.18.182026-06-14 → 2026-07-11 · 39 obs

○A18.160.18.262026-06-14 → 2026-07-11 · 39 obs

○A18.160.18.572026-06-14 → 2026-07-11 · 39 obs

○A18.165.227.1212026-06-09 → 2026-06-30 · 50 obs

● 2026-06-09 19:53:30
○ 2026-06-10 20:43:32
○ 2026-06-11 00:10:56
● 2026-06-11 00:59:26
○ 2026-06-11 02:01:26
● 2026-06-11 05:04:00
● 2026-06-13 17:23:36
○ 2026-06-14 20:47:28
● 2026-06-15 02:59:02
● 2026-06-15 05:43:46
○ 2026-06-15 09:22:50
● 2026-06-15 13:51:24
○ 2026-06-15 22:32:58
● 2026-06-15 23:46:16
○ 2026-06-17 03:35:18
○ 2026-06-17 21:50:46
● 2026-06-17 23:57:52
● 2026-06-18 07:41:00
○ 2026-06-18 14:05:22
● 2026-06-18 20:41:04
○ 2026-06-19 13:17:26
● 2026-06-19 22:18:56
○ 2026-06-20 16:14:30
● 2026-06-21 07:24:20
○ 2026-06-22 20:20:38
● 2026-06-22 21:31:26
○ 2026-06-23 03:06:10
● 2026-06-23 08:02:14
○ 2026-06-23 18:11:22
● 2026-06-23 21:13:58
○ 2026-06-24 01:11:34
● 2026-06-24 07:09:54
○ 2026-06-24 07:54:18
● 2026-06-24 19:15:16
○ 2026-06-25 00:15:20
● 2026-06-25 04:40:02
○ 2026-06-25 20:56:52
● 2026-06-25 22:18:10
○ 2026-06-26 07:37:56
● 2026-06-26 21:08:58
○ 2026-06-27 11:06:00
● 2026-06-27 13:04:24
○ 2026-06-29 00:23:24
● 2026-06-29 04:53:08
○ 2026-06-29 07:36:18
● 2026-06-29 08:16:20
○ 2026-06-29 15:49:08
● 2026-06-30 08:57:06
○ 2026-06-30 15:39:10
○ 2026-07-29 14:38:32

○A18.165.227.232026-06-09 → 2026-06-30 · 50 obs

○A18.165.227.502026-06-09 → 2026-06-30 · 50 obs

○A18.165.227.992026-06-09 → 2026-06-30 · 50 obs

○A3.161.150.152026-06-17 → 2026-06-29 · 8 obs

○ 2026-06-17 09:45:44
● 2026-06-17 18:10:26
○ 2026-06-17 21:50:46
● 2026-06-22 20:20:38
○ 2026-06-22 21:31:26
● 2026-06-29 15:49:08
○ 2026-06-30 07:20:16
○ 2026-07-29 14:38:32

○A3.161.150.502026-06-17 → 2026-06-29 · 8 obs

○ 2026-06-17 09:45:44
● 2026-06-17 18:10:26
○ 2026-06-17 21:50:46
● 2026-06-22 20:20:38
○ 2026-06-22 21:31:26
● 2026-06-29 15:49:08
○ 2026-06-30 07:20:16
○ 2026-07-29 14:38:32

○A3.161.150.532026-06-17 → 2026-06-29 · 8 obs

○ 2026-06-17 09:45:44
● 2026-06-17 18:10:26
○ 2026-06-17 21:50:46
● 2026-06-22 20:20:38
○ 2026-06-22 21:31:26
● 2026-06-29 15:49:08
○ 2026-06-30 07:20:16
○ 2026-07-29 14:38:32

○A3.161.150.862026-06-17 → 2026-06-29 · 8 obs

○ 2026-06-17 09:45:44
● 2026-06-17 18:10:26
○ 2026-06-17 21:50:46
● 2026-06-22 20:20:38
○ 2026-06-22 21:31:26
● 2026-06-29 15:49:08
○ 2026-06-30 07:20:16
○ 2026-07-29 14:38:32

○A3.162.38.1022026-07-26 → 2026-07-28 · 10 obs

○ 2026-07-25 09:59:50
● 2026-07-26 22:50:32
○ 2026-07-26 23:39:12
● 2026-07-27 11:05:10
○ 2026-07-27 12:21:58
● 2026-07-27 22:07:20
○ 2026-07-27 22:52:30
● 2026-07-28 10:14:00
○ 2026-07-28 11:03:32
○ 2026-07-29 14:38:32

○A3.162.38.1222026-07-26 → 2026-07-28 · 10 obs

○A3.162.38.42026-07-26 → 2026-07-28 · 10 obs

○A3.162.38.652026-07-26 → 2026-07-28 · 10 obs

○A3.163.10.302026-06-10 → 2026-07-23 · 42 obs

○ 2026-06-09 19:53:30
● 2026-06-10 20:43:32
● 2026-06-11 00:10:56
○ 2026-06-11 00:59:26
● 2026-06-11 02:01:26
○ 2026-06-11 05:04:00
○ 2026-06-15 05:43:46
● 2026-06-15 09:22:50
○ 2026-06-15 13:51:24
● 2026-06-15 22:32:58
○ 2026-06-15 23:46:16
● 2026-07-01 07:53:30
○ 2026-07-02 11:51:38
● 2026-07-02 15:30:20
○ 2026-07-03 05:18:56
● 2026-07-04 04:21:08
○ 2026-07-07 16:25:28
● 2026-07-07 20:54:50
○ 2026-07-11 02:49:24
● 2026-07-11 04:10:52
○ 2026-07-11 23:04:34
● 2026-07-12 11:47:16
○ 2026-07-13 17:06:40
● 2026-07-13 23:22:50
○ 2026-07-14 11:17:34
● 2026-07-14 17:48:56
○ 2026-07-14 18:39:14
● 2026-07-15 07:00:42
○ 2026-07-18 04:42:58
● 2026-07-18 11:06:20
○ 2026-07-19 23:50:26
● 2026-07-20 01:15:20
○ 2026-07-20 16:14:06
● 2026-07-20 16:57:08
○ 2026-07-22 15:48:00
● 2026-07-23 04:19:56
○ 2026-07-23 05:15:10
● 2026-07-23 15:54:46
○ 2026-07-23 18:43:16
● 2026-07-23 19:34:10
○ 2026-07-24 13:14:24
○ 2026-07-29 14:38:32

○A3.163.10.552026-06-10 → 2026-07-23 · 42 obs

○A3.163.10.722026-06-10 → 2026-07-23 · 42 obs

○A3.163.10.912026-06-10 → 2026-07-23 · 42 obs

○A3.166.152.1232026-06-17 → 2026-07-27 · 6 obs

○ 2026-06-17 18:10:26
● 2026-06-17 21:50:46
○ 2026-06-17 23:57:52
● 2026-07-27 12:58:02
○ 2026-07-27 18:32:12
○ 2026-07-29 14:38:32

○A3.166.152.312026-06-17 → 2026-07-27 · 6 obs

○ 2026-06-17 18:10:26
● 2026-06-17 21:50:46
○ 2026-06-17 23:57:52
● 2026-07-27 12:58:02
○ 2026-07-27 18:32:12
○ 2026-07-29 14:38:32

○A3.166.152.362026-06-17 → 2026-07-27 · 6 obs

○ 2026-06-17 18:10:26
● 2026-06-17 21:50:46
○ 2026-06-17 23:57:52
● 2026-07-27 12:58:02
○ 2026-07-27 18:32:12
○ 2026-07-29 14:38:32

○A3.166.152.662026-06-17 → 2026-07-27 · 6 obs

○ 2026-06-17 18:10:26
● 2026-06-17 21:50:46
○ 2026-06-17 23:57:52
● 2026-07-27 12:58:02
○ 2026-07-27 18:32:12
○ 2026-07-29 14:38:32

○A3.166.192.1052026-07-27 → 2026-07-28 · 6 obs

○ 2026-07-27 11:05:10
● 2026-07-27 12:21:58
○ 2026-07-27 12:58:02
● 2026-07-28 11:03:32
○ 2026-07-28 21:36:28
○ 2026-07-29 14:38:32

○A3.166.192.1292026-07-27 → 2026-07-28 · 6 obs

○ 2026-07-27 11:05:10
● 2026-07-27 12:21:58
○ 2026-07-27 12:58:02
● 2026-07-28 11:03:32
○ 2026-07-28 21:36:28
○ 2026-07-29 14:38:32

○A3.166.192.222026-07-27 → 2026-07-28 · 6 obs

○ 2026-07-27 11:05:10
● 2026-07-27 12:21:58
○ 2026-07-27 12:58:02
● 2026-07-28 11:03:32
○ 2026-07-28 21:36:28
○ 2026-07-29 14:38:32

○A3.166.192.72026-07-27 → 2026-07-28 · 6 obs

○ 2026-07-27 11:05:10
● 2026-07-27 12:21:58
○ 2026-07-27 12:58:02
● 2026-07-28 11:03:32
○ 2026-07-28 21:36:28
○ 2026-07-29 14:38:32

○A3.171.76.1122026-06-19 → 2026-06-29 · 8 obs

○ 2026-06-18 20:41:04
● 2026-06-19 13:17:26
○ 2026-06-19 22:18:56
● 2026-06-27 11:06:00
○ 2026-06-27 12:25:34
● 2026-06-29 07:36:18
○ 2026-06-29 08:16:20
○ 2026-07-29 14:38:32

○A3.171.76.1292026-06-19 → 2026-06-29 · 8 obs

○ 2026-06-18 20:41:04
● 2026-06-19 13:17:26
○ 2026-06-19 22:18:56
● 2026-06-27 11:06:00
○ 2026-06-27 12:25:34
● 2026-06-29 07:36:18
○ 2026-06-29 08:16:20
○ 2026-07-29 14:38:32

○A3.171.76.52026-06-19 → 2026-06-29 · 8 obs

○ 2026-06-18 20:41:04
● 2026-06-19 13:17:26
○ 2026-06-19 22:18:56
● 2026-06-27 11:06:00
○ 2026-06-27 12:25:34
● 2026-06-29 07:36:18
○ 2026-06-29 08:16:20
○ 2026-07-29 14:38:32

○A3.171.76.542026-06-19 → 2026-06-29 · 8 obs

○ 2026-06-18 20:41:04
● 2026-06-19 13:17:26
○ 2026-06-19 22:18:56
● 2026-06-27 11:06:00
○ 2026-06-27 12:25:34
● 2026-06-29 07:36:18
○ 2026-06-29 08:16:20
○ 2026-07-29 14:38:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
aws	dns4.nic.aws, dnsd.nic.aws, dns1.nic.aws, dnsb.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	-
contentauthoring.xps.skillbuilder.aws	ns-1085.awsdns-07.org, ns-1763.awsdns-28.co.uk, ns-645.awsdns-16.net, ns-80.awsdns-10.com	-

✅ Authoritative Response

Server:205.251.196.61

NS records: ns-1085.awsdns-07.org, ns-1763.awsdns-28.co.uk, ns-645.awsdns-16.net, ns-80.awsdns-10.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for skillbuilder.aws (unsigned zone)

⏱️ Timing

Total: 808ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`13.35.107.98, 13.35.107.109...`
NS	4	`ns-1085.awsdns-07.org, ns-1763.awsdns-28.co.uk...`
SOA	1	`ns-1085.awsdns-07.org awsdns-hostmaster.`

📌 Glue Records Collected

Total: 16

In-bailiwick: 16 (dnsd.nic.aws, dnsc.nic.aws, dnsb.nic.aws...)

Analysis

IP Addresses

contentauthoring.xps.skillbuilder.aws has four IP addresses: 13.35.107.81, 13.35.107.83, 13.35.107.98 and 13.35.107.109.

Two other host names, along with www.laempresamasfelizdelmundo.es, dev.assets.commercevan.com and loja.thunderx3.com.br, also share IP numbers with contentauthoring.xps.skillbuilder.aws.

Name Servers

The NS records for contentauthoring.xps.skillbuilder.aws point to four name servers: ns-80.awsdns-10.com, ns-645.awsdns-16.net, ns-1085.awsdns-07.org and ns-1763.awsdns-28.co.uk.

contentauthoring.xps.skillbuilder.aws partially shares its NS delegation with several other domains, including valleyflowersshop.com, wangchaon.go.th, josebagar.com and two others.

These name servers regularly co-occur with the name servers ns-869.awsdns-44.net, ns-1496.awsdns-59.org and ns-1892.awsdns-44.co.uk.

ns-80.awsdns-10.com, ns-645.awsdns-16.net, ns-1085.awsdns-07.org and ns-1763.awsdns-28.co.uk each carry two IP addresses. ns-80.awsdns-10.com has 205.251.192.80 and 2600:9000:5300:5000::1; ns-645.awsdns-16.net has 205.251.194.133 and 2600:9000:5302:8500::1; ns-1085.awsdns-07.org has 205.251.196.61 and 2600:9000:5304:3d00::1; ns-1763.awsdns-28.co.uk has 205.251.198.227 and 2600:9000:5306:e300::1.

contentauthoring.xps.skillbuilder.aws - robtex.com