`clazzrooms.com`

DNSSEC	⚠️ Not signed
A	13.249.96.20^{🇺🇸 Amazon13.249.96.0/24}
		PTR	`server-13-249-96-20.mia3.r.cloudfront.net`
A	13.249.96.80^{🇺🇸 Amazon13.249.96.0/24}
A	13.249.96.106^{🇺🇸 Amazon13.249.96.0/24}
A	13.249.96.116^{🇺🇸 Amazon13.249.96.0/24}
NS	`ns-131.awsdns-16.com` ⭐
		A	2600:9000:5300:8300::1^{🇺🇸 Amazon2600:9000:5300::/48 - CloudFront}
			PTR	`ns-131.awsdns-16.com`
		A	205.251.192.131^{🇺🇸 Amazon205.251.192.0/24 prefix}
			PTR	`ns-131.awsdns-16.com`
NS	`ns-1524.awsdns-62.org`
		A	2600:9000:5305:f400::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1524.awsdns-62.org`
		A	205.251.197.244^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1524.awsdns-62.org`
NS	`ns-1627.awsdns-11.co.uk`
		A	2600:9000:5306:5b00::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1627.awsdns-11.co.uk`
		A	205.251.198.91^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1627.awsdns-11.co.uk`
NS	`ns-527.awsdns-01.net`
		A	2600:9000:5302:f00::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-527.awsdns-01.net`
		A	205.251.194.15^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-527.awsdns-01.net`
SOA	`ns-131.awsdns-16.com`awsdns-hostmaster@amazon.com serial=1

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1776003327

Same first word

clazzrooms.com

DNS History

43 records (8 active, 35 former)

○NSdns.104.com.tw2016-12-21 → 2016-12-21 · 3 obs

● 2016-12-21 03:43:48
○ 2026-02-19 19:04:48
○ 2026-04-12 14:36:12

○NSext-ns.104.com.tw2016-12-21 → 2016-12-21 · 3 obs

● 2016-12-21 03:43:48
○ 2026-02-19 19:04:48
○ 2026-04-12 14:36:12

●NSns-131.awsdns-16.com2026-02-19 → 2026-04-12 · 3 obs

○ 2016-12-21 03:43:48
● 2026-02-19 19:04:48
● 2026-04-12 14:36:12

●NSns-1524.awsdns-62.org2026-02-19 → 2026-04-12 · 3 obs

○ 2016-12-21 03:43:48
● 2026-02-19 19:04:48
● 2026-04-12 14:36:12

●NSns-1627.awsdns-11.co.uk2026-02-19 → 2026-04-12 · 3 obs

○ 2016-12-21 03:43:48
● 2026-02-19 19:04:48
● 2026-04-12 14:36:12

●NSns-527.awsdns-01.net2026-02-19 → 2026-04-12 · 3 obs

○ 2016-12-21 03:43:48
● 2026-02-19 19:04:48
● 2026-04-12 14:36:12

○A122.147.53.1602016-12-21 → 2016-12-21 · 3 obs

● 2016-12-21 03:43:48
○ 2026-02-19 19:04:48
○ 2026-04-12 14:36:12

○A13.226.144.1172026-02-19 → 2026-04-12 · 135 obs

○ 2026-02-19 19:04:48
● 2026-02-19 20:10:26
○ 2026-02-20 03:43:06
○ 2026-02-20 11:32:40
● 2026-02-20 20:28:48
○ 2026-02-20 21:43:20
○ 2026-02-21 14:36:10
● 2026-02-21 16:40:52
○ 2026-02-21 22:41:48
○ 2026-02-22 18:54:04
● 2026-02-22 19:51:40
○ 2026-02-23 09:46:58
● 2026-02-23 20:18:56
● 2026-02-24 21:42:10
○ 2026-02-25 05:32:18
● 2026-02-25 13:11:16
○ 2026-02-25 21:06:40
● 2026-02-26 09:20:52
○ 2026-02-26 14:31:24
● 2026-02-26 15:41:42
○ 2026-02-26 18:21:44
○ 2026-02-27 00:00:14
● 2026-02-27 01:27:08
○ 2026-02-27 04:01:26
○ 2026-02-27 15:51:42
● 2026-02-28 11:51:50
○ 2026-02-28 13:17:26
○ 2026-02-28 18:32:54
● 2026-03-01 00:36:10
○ 2026-03-01 04:09:58
● 2026-03-01 19:43:10
○ 2026-03-02 08:31:50
○ 2026-03-03 05:41:52
● 2026-03-03 06:28:50
○ 2026-03-03 23:41:52
● 2026-03-04 01:09:28
● 2026-03-04 01:42:18
○ 2026-03-04 12:27:50
○ 2026-03-04 14:02:12
● 2026-03-04 14:55:16
● 2026-03-06 04:08:12
○ 2026-03-06 13:06:00
○ 2026-03-06 15:11:28
● 2026-03-06 18:37:42
● 2026-03-07 00:22:06
○ 2026-03-07 00:55:32
● 2026-03-07 02:02:06
○ 2026-03-07 02:52:40
● 2026-03-07 03:31:00
○ 2026-03-07 12:53:16
○ 2026-03-08 05:23:58
● 2026-03-08 06:08:14
○ 2026-03-08 16:03:12
● 2026-03-08 20:19:42
● 2026-03-09 03:37:24
○ 2026-03-09 07:37:24
○ 2026-03-09 12:06:28
● 2026-03-09 19:50:56
● 2026-03-10 03:22:10
○ 2026-03-10 19:59:26
● 2026-03-10 21:20:28
● 2026-03-11 07:14:40
○ 2026-03-11 14:05:34
○ 2026-03-11 15:01:02
● 2026-03-12 04:39:26
○ 2026-03-13 09:10:16
● 2026-03-13 11:53:54
○ 2026-03-13 16:04:18
● 2026-03-14 01:02:18
○ 2026-03-14 06:41:42
● 2026-03-14 08:02:48
○ 2026-03-14 10:43:56
○ 2026-03-14 11:48:38
● 2026-03-14 12:26:06
● 2026-03-14 13:57:18
○ 2026-03-14 16:52:54
● 2026-03-14 19:28:44
● 2026-03-15 02:22:08
○ 2026-03-15 03:47:52
○ 2026-03-15 15:54:00
● 2026-03-15 18:31:54
○ 2026-03-15 22:36:32
○ 2026-03-16 09:28:36
● 2026-03-16 16:56:02
○ 2026-03-16 21:01:56
● 2026-03-17 04:10:46
○ 2026-03-17 23:00:44
○ 2026-03-18 07:40:06
● 2026-03-18 14:35:38
● 2026-03-19 01:33:10
○ 2026-03-19 02:42:04
○ 2026-03-19 08:26:16
● 2026-03-19 20:17:48
○ 2026-03-19 21:48:06
○ 2026-03-21 01:14:30
● 2026-03-21 09:45:36
● 2026-03-22 18:24:32
○ 2026-03-23 02:19:36
● 2026-03-23 03:58:20
● 2026-03-23 05:54:50
○ 2026-03-25 11:48:38
○ 2026-03-26 04:05:06
● 2026-03-26 07:38:14
● 2026-03-28 02:46:28
○ 2026-03-28 13:34:48
● 2026-03-29 05:27:34
○ 2026-03-29 11:53:44
● 2026-03-30 01:53:20
● 2026-04-02 03:02:16
○ 2026-04-02 09:34:40
○ 2026-04-03 01:16:48
● 2026-04-03 13:43:00
● 2026-04-04 00:02:08
○ 2026-04-04 05:34:44
○ 2026-04-04 19:47:42
● 2026-04-05 02:44:14
● 2026-04-06 13:18:10
○ 2026-04-06 19:24:50
● 2026-04-06 22:27:44
● 2026-04-07 00:51:18
○ 2026-04-07 05:44:30
● 2026-04-07 06:40:00
○ 2026-04-07 08:20:48
○ 2026-04-07 15:13:08
● 2026-04-07 22:17:14
● 2026-04-08 01:04:22
○ 2026-04-08 14:06:46
● 2026-04-08 15:58:54
● 2026-04-10 00:03:32
○ 2026-04-10 13:31:02
● 2026-04-11 01:37:16
○ 2026-04-11 08:54:26
● 2026-04-11 11:20:42
● 2026-04-12 01:13:58
○ 2026-04-12 14:36:12

○A13.226.144.182026-02-19 → 2026-04-12 · 135 obs

○A13.226.144.642026-02-19 → 2026-04-12 · 135 obs

○A13.226.144.692026-02-19 → 2026-04-12 · 135 obs

●A13.249.96.1062026-04-10 → 2026-04-12 · 5 obs

○ 2026-04-10 00:03:32
● 2026-04-10 13:31:02
○ 2026-04-11 01:37:16
○ 2026-04-12 01:13:58
● 2026-04-12 14:36:12

●A13.249.96.1162026-04-10 → 2026-04-12 · 5 obs

○ 2026-04-10 00:03:32
● 2026-04-10 13:31:02
○ 2026-04-11 01:37:16
○ 2026-04-12 01:13:58
● 2026-04-12 14:36:12

●A13.249.96.202026-04-10 → 2026-04-12 · 5 obs

○ 2026-04-10 00:03:32
● 2026-04-10 13:31:02
○ 2026-04-11 01:37:16
○ 2026-04-12 01:13:58
● 2026-04-12 14:36:12

●A13.249.96.802026-04-10 → 2026-04-12 · 5 obs

○ 2026-04-10 00:03:32
● 2026-04-10 13:31:02
○ 2026-04-11 01:37:16
○ 2026-04-12 01:13:58
● 2026-04-12 14:36:12

○A18.154.132.342026-02-26 → 2026-03-14 · 8 obs

○ 2026-02-26 09:20:52
● 2026-02-26 14:31:24
○ 2026-02-26 15:41:42
○ 2026-03-14 08:02:48
● 2026-03-14 10:43:56
● 2026-03-14 11:48:38
○ 2026-03-14 12:26:06
○ 2026-04-12 14:36:12

○A18.154.132.612026-02-26 → 2026-03-14 · 8 obs

○ 2026-02-26 09:20:52
● 2026-02-26 14:31:24
○ 2026-02-26 15:41:42
○ 2026-03-14 08:02:48
● 2026-03-14 10:43:56
● 2026-03-14 11:48:38
○ 2026-03-14 12:26:06
○ 2026-04-12 14:36:12

○A18.154.132.792026-02-26 → 2026-03-14 · 8 obs

○ 2026-02-26 09:20:52
● 2026-02-26 14:31:24
○ 2026-02-26 15:41:42
○ 2026-03-14 08:02:48
● 2026-03-14 10:43:56
● 2026-03-14 11:48:38
○ 2026-03-14 12:26:06
○ 2026-04-12 14:36:12

○A18.154.132.902026-02-26 → 2026-03-14 · 8 obs

○ 2026-02-26 09:20:52
● 2026-02-26 14:31:24
○ 2026-02-26 15:41:42
○ 2026-03-14 08:02:48
● 2026-03-14 10:43:56
● 2026-03-14 11:48:38
○ 2026-03-14 12:26:06
○ 2026-04-12 14:36:12

○A18.154.227.1032026-02-20 → 2026-03-28 · 64 obs

○ 2026-02-19 19:04:48
○ 2026-02-20 10:31:42
● 2026-02-20 11:32:40
○ 2026-02-20 20:28:48
○ 2026-02-20 21:43:20
● 2026-02-21 11:36:52
● 2026-02-21 14:36:10
○ 2026-02-21 16:40:52
○ 2026-02-22 14:24:40
● 2026-02-22 18:54:04
○ 2026-02-22 19:51:40
○ 2026-02-28 13:17:26
● 2026-02-28 18:32:54
○ 2026-03-01 00:36:10
● 2026-03-01 04:09:58
○ 2026-03-01 19:43:10
○ 2026-03-02 20:24:34
● 2026-03-03 00:37:06
○ 2026-03-03 05:41:52
○ 2026-03-04 01:42:18
● 2026-03-04 12:27:50
● 2026-03-04 14:02:12
○ 2026-03-04 14:55:16
○ 2026-03-07 00:22:06
● 2026-03-07 00:55:32
○ 2026-03-07 02:02:06
● 2026-03-07 02:52:40
○ 2026-03-07 03:31:00
○ 2026-03-11 14:05:34
● 2026-03-11 15:01:02
○ 2026-03-12 04:39:26
○ 2026-03-15 02:22:08
● 2026-03-15 03:47:52
● 2026-03-15 15:54:00
○ 2026-03-15 18:31:54
● 2026-03-15 22:36:32
● 2026-03-16 09:28:36
○ 2026-03-16 16:56:02
● 2026-03-16 21:01:56
○ 2026-03-17 04:10:46
● 2026-03-17 23:00:44
○ 2026-03-18 07:40:06
○ 2026-03-19 02:42:04
● 2026-03-19 08:26:16
○ 2026-03-19 20:17:48
○ 2026-03-19 21:48:06
● 2026-03-19 22:54:14
○ 2026-03-20 02:47:10
● 2026-03-20 07:04:44
○ 2026-03-20 07:46:58
● 2026-03-20 10:52:44
● 2026-03-21 01:14:30
○ 2026-03-21 09:45:36
○ 2026-03-22 18:24:32
● 2026-03-23 02:19:36
○ 2026-03-23 03:58:20
○ 2026-03-25 11:48:38
● 2026-03-25 17:49:42
● 2026-03-26 04:05:06
○ 2026-03-26 07:38:14
○ 2026-03-28 02:46:28
● 2026-03-28 13:34:48
○ 2026-03-29 05:27:34
○ 2026-04-12 14:36:12

○A18.154.227.282026-02-20 → 2026-03-28 · 64 obs

○A18.154.227.452026-02-20 → 2026-03-28 · 64 obs

○A18.154.227.942026-02-20 → 2026-03-28 · 64 obs

○A18.238.49.252026-04-11 → 2026-04-11 · 4 obs

○ 2026-04-11 01:37:16
● 2026-04-11 08:54:26
○ 2026-04-11 11:20:42
○ 2026-04-12 14:36:12

○A18.238.49.32026-04-11 → 2026-04-11 · 4 obs

○ 2026-04-11 01:37:16
● 2026-04-11 08:54:26
○ 2026-04-11 11:20:42
○ 2026-04-12 14:36:12

○A18.238.49.672026-04-11 → 2026-04-11 · 4 obs

○ 2026-04-11 01:37:16
● 2026-04-11 08:54:26
○ 2026-04-11 11:20:42
○ 2026-04-12 14:36:12

○A18.238.49.92026-04-11 → 2026-04-11 · 4 obs

○ 2026-04-11 01:37:16
● 2026-04-11 08:54:26
○ 2026-04-11 11:20:42
○ 2026-04-12 14:36:12

○A3.161.174.1122026-04-02 → 2026-04-08 · 21 obs

○ 2026-04-02 03:02:16
● 2026-04-02 09:34:40
● 2026-04-03 01:16:48
○ 2026-04-03 13:43:00
○ 2026-04-04 00:02:08
● 2026-04-04 05:34:44
● 2026-04-04 19:47:42
○ 2026-04-05 02:44:14
○ 2026-04-06 13:18:10
● 2026-04-06 19:24:50
○ 2026-04-06 22:27:44
○ 2026-04-07 00:51:18
● 2026-04-07 05:44:30
○ 2026-04-07 06:40:00
● 2026-04-07 08:20:48
● 2026-04-07 15:13:08
○ 2026-04-07 22:17:14
○ 2026-04-08 01:04:22
● 2026-04-08 14:06:46
○ 2026-04-08 15:58:54
○ 2026-04-12 14:36:12

○A3.161.174.1262026-04-02 → 2026-04-08 · 21 obs

○A3.161.174.292026-04-02 → 2026-04-08 · 21 obs

○A3.161.174.642026-04-02 → 2026-04-08 · 21 obs

○A3.162.20.1252026-02-23 → 2026-03-29 · 7 obs

○ 2026-02-22 19:51:40
● 2026-02-23 09:46:58
○ 2026-02-23 20:18:56
○ 2026-03-29 05:27:34
● 2026-03-29 11:53:44
○ 2026-03-30 01:53:20
○ 2026-04-12 14:36:12

○A3.162.20.302026-02-23 → 2026-03-29 · 7 obs

○ 2026-02-22 19:51:40
● 2026-02-23 09:46:58
○ 2026-02-23 20:18:56
○ 2026-03-29 05:27:34
● 2026-03-29 11:53:44
○ 2026-03-30 01:53:20
○ 2026-04-12 14:36:12

○A3.162.20.342026-02-23 → 2026-03-29 · 7 obs

○ 2026-02-22 19:51:40
● 2026-02-23 09:46:58
○ 2026-02-23 20:18:56
○ 2026-03-29 05:27:34
● 2026-03-29 11:53:44
○ 2026-03-30 01:53:20
○ 2026-04-12 14:36:12

○A3.162.20.912026-02-23 → 2026-03-29 · 7 obs

○ 2026-02-22 19:51:40
● 2026-02-23 09:46:58
○ 2026-02-23 20:18:56
○ 2026-03-29 05:27:34
● 2026-03-29 11:53:44
○ 2026-03-30 01:53:20
○ 2026-04-12 14:36:12

○A3.164.68.102026-03-25 → 2026-03-25 · 4 obs

○ 2026-03-23 05:54:50
● 2026-03-25 11:48:38
○ 2026-03-25 17:49:42
○ 2026-04-12 14:36:12

○A3.164.68.1172026-03-25 → 2026-03-25 · 4 obs

○ 2026-03-23 05:54:50
● 2026-03-25 11:48:38
○ 2026-03-25 17:49:42
○ 2026-04-12 14:36:12

○A3.164.68.272026-03-25 → 2026-03-25 · 4 obs

○ 2026-03-23 05:54:50
● 2026-03-25 11:48:38
○ 2026-03-25 17:49:42
○ 2026-04-12 14:36:12

○A3.164.68.952026-03-25 → 2026-03-25 · 4 obs

○ 2026-03-23 05:54:50
● 2026-03-25 11:48:38
○ 2026-03-25 17:49:42
○ 2026-04-12 14:36:12

○A3.167.192.172026-02-19 → 2026-03-20 · 79 obs

○ 2016-12-21 03:43:48
● 2026-02-19 19:04:48
○ 2026-02-19 20:10:26
● 2026-02-20 03:43:06
● 2026-02-20 10:31:42
○ 2026-02-20 11:32:40
○ 2026-02-20 20:28:48
● 2026-02-20 21:43:20
○ 2026-02-21 11:36:52
○ 2026-02-21 16:40:52
● 2026-02-21 22:41:48
● 2026-02-22 14:24:40
○ 2026-02-22 18:54:04
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● 2026-02-25 05:32:18
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● 2026-02-25 21:06:40
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● 2026-02-26 18:21:44
● 2026-02-27 00:00:14
○ 2026-02-27 01:27:08
● 2026-02-27 04:01:26
● 2026-02-27 15:51:42
○ 2026-02-28 11:51:50
● 2026-02-28 13:17:26
○ 2026-02-28 18:32:54
○ 2026-03-01 19:43:10
● 2026-03-02 08:31:50
● 2026-03-02 20:24:34
○ 2026-03-03 00:37:06
● 2026-03-03 05:41:52
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● 2026-03-03 23:41:52
○ 2026-03-04 01:09:28
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● 2026-03-06 13:06:00
● 2026-03-06 15:11:28
○ 2026-03-06 18:37:42
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● 2026-03-07 12:53:16
● 2026-03-08 05:23:58
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● 2026-03-08 16:03:12
○ 2026-03-08 20:19:42
○ 2026-03-09 03:37:24
● 2026-03-09 07:37:24
● 2026-03-09 12:06:28
○ 2026-03-09 19:50:56
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● 2026-03-10 19:59:26
○ 2026-03-10 21:20:28
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● 2026-03-11 14:05:34
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● 2026-03-13 09:10:16
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● 2026-03-13 16:04:18
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● 2026-03-14 06:41:42
○ 2026-03-14 08:02:48
○ 2026-03-14 13:57:18
● 2026-03-14 16:52:54
○ 2026-03-14 19:28:44
○ 2026-03-17 23:00:44
● 2026-03-18 07:40:06
○ 2026-03-18 14:35:38
○ 2026-03-19 01:33:10
● 2026-03-19 02:42:04
○ 2026-03-19 08:26:16
○ 2026-03-19 20:17:48
● 2026-03-19 21:48:06
○ 2026-03-19 22:54:14
● 2026-03-20 02:47:10
○ 2026-03-20 07:04:44
● 2026-03-20 07:46:58
○ 2026-03-20 10:52:44
○ 2026-04-12 14:36:12

○A3.167.192.32026-02-19 → 2026-03-20 · 79 obs

○A3.167.192.52026-02-19 → 2026-03-20 · 79 obs

○A3.167.192.542026-02-19 → 2026-03-20 · 79 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	c.gtld-servers.net, e.gtld-servers.net, g.gtld-servers.net, i.gtld-servers.net...	-
clazzrooms.com	ns-131.awsdns-16.com, ns-527.awsdns-01.net, ns-1627.awsdns-11.co.uk, ns-1524.awsdns-62.org	1 record

✅ Authoritative Response

Server:205.251.192.131

NS records: ns-131.awsdns-16.com, ns-527.awsdns-01.net, ns-1627.awsdns-11.co.uk, ns-1524.awsdns-62.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for clazzrooms.com (unsigned zone)

⏱️ Timing

Total: 262ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`13.249.96.116, 13.249.96.106...`
NS	4	`ns-131.awsdns-16.com, ns-1524.awsdns-62.org...`
SOA	1	`ns-131.awsdns-16.com awsdns-hostmaster.a`

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns-131.awsdns-16.com)

Analysis

IP Addresses

clazzrooms.com resolves to four IP numbers: 13.249.96.20, 13.249.96.80, 13.249.96.106 and 13.249.96.116.

other host names for instance guaranteevac.com, seloeletronico.com.br, cdn.jumpro.pe, acnelab.net and dwfjjeozl4r7u.cloudfront.net share IP numbers with clazzrooms.com.

Name Servers

clazzrooms.com is delegated to four name servers: ns-131.awsdns-16.com, ns-527.awsdns-01.net, ns-1524.awsdns-62.org and ns-1627.awsdns-11.co.uk.

clazzrooms.com at least partially shares name servers with other domains, for instance chargevision4.com, freighter.co.nz, tripmatrix.com, privacystar-sandbox.net and clemenceroofing.co.uk.

These name servers are commonly used with the name servers ns-805.awsdns-36.net.

Host names with two IP numbers:

Host name ns-131.awsdns-16.com points to: 2600:9000:5300:8300::1 and 205.251.192.131.

Host name ns-527.awsdns-01.net points to: 2600:9000:5302:f00::1 and 205.251.194.15.

Host name ns-1524.awsdns-62.org points to: 2600:9000:5305:f400::1 and 205.251.197.244.

Host name ns-1627.awsdns-11.co.uk points to: 2600:9000:5306:5b00::1 and 205.251.198.91.

clazzrooms.com - robtex.com

clazzrooms.com

com

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

`clazzrooms.com`

`com`