lesson.classgap.com - dns.ninja

`lesson.classgap.com`

DNSSEC	⚠️ Not signed
A	18.160.10.15^{🇺🇸 Amazon18.160.8.0/22}
		PTR	`server-18-160-10-15.iad12.r.cloudfront.net`
A	18.160.10.59^{🇺🇸 Amazon18.160.8.0/22}
A	18.160.10.60^{🇺🇸 Amazon18.160.8.0/22}
A	18.160.10.71^{🇺🇸 Amazon18.160.8.0/22}

`classgap.com`

	DNSSEC	⚠️ Not signed
	A	34.247.17.196^{🇮🇪 Amazon34.240.0.0/13 EC2 DUB prefix}
	A	54.154.254.116^{🇮🇪 Amazon54.154.0.0/16 EC2 DUB prefix}
	A	54.229.157.15^{🇮🇪 Amazon54.229.128.0/17 EC2 DUB prefix}
	NS	`ns-1849.awsdns-39.co.uk` ⭐
	NS	`ns-1350.awsdns-40.org`
	NS	`ns-152.awsdns-19.com`
	NS	`ns-900.awsdns-48.net`
	MX	`mail1.classgap.com` ⭐
	MX	`mail2.classgap.com`⁽²⁰⁾
	MX	`mail.classgap.com`⁽⁴⁰⁾
	MX	`inbound-smtp.eu-west-1.amazonaws.com`⁽⁶⁰⁾
	TXT	`v=spf1 mx ip4:93.90.28.128/28 ip4:18.203.0.13/32 ip4:3.255.68.133/32 ip4:176....`
	SOA	`ns-1849.awsdns-39.co.uk`awsdns-hostmaster@amazon.com serial=1

rank #374925 globally
rank #153926 in the tld
📈 Tranco rank: #226,368

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DNS History

88 records (4 active, 84 former)

○A108.138.233.1042026-03-01 → 2026-04-17 · 18 obs

○ 2026-03-01 04:27:40
● 2026-03-01 10:38:28
○ 2026-03-01 23:40:08
● 2026-03-02 04:21:06
● 2026-03-07 01:11:06
○ 2026-03-07 21:02:38
○ 2026-03-29 10:07:50
● 2026-03-30 20:08:38
● 2026-04-03 10:53:02
○ 2026-04-05 06:15:20
○ 2026-04-12 19:13:06
● 2026-04-14 04:52:18
○ 2026-04-15 22:43:24
● 2026-04-16 22:42:16
○ 2026-04-17 07:53:52
● 2026-04-17 09:27:32
○ 2026-04-22 22:06:12
○ 2026-08-05 13:26:06

○A108.138.233.212026-03-01 → 2026-04-17 · 18 obs

○A108.138.233.652026-03-01 → 2026-04-17 · 18 obs

○A108.138.233.912026-03-01 → 2026-04-17 · 18 obs

○A108.139.166.1032026-03-29 → 2026-06-02 · 20 obs

○ 2026-03-27 01:50:32
● 2026-03-29 10:07:50
○ 2026-03-29 15:06:06
○ 2026-03-31 12:43:06
● 2026-03-31 16:28:34
○ 2026-04-01 07:12:32
● 2026-04-03 02:27:48
○ 2026-04-03 10:53:02
● 2026-04-05 06:15:20
● 2026-04-06 11:56:44
○ 2026-04-06 21:02:30
○ 2026-04-11 20:57:32
● 2026-04-12 19:13:06
○ 2026-04-14 04:52:18
● 2026-04-15 22:43:24
○ 2026-04-16 21:47:00
○ 2026-06-02 16:54:28
● 2026-06-02 23:56:26
○ 2026-06-03 03:12:02
○ 2026-08-05 13:26:06

○A108.139.166.1232026-03-29 → 2026-06-02 · 20 obs

○A108.139.166.422026-03-29 → 2026-06-02 · 20 obs

○A108.139.166.752026-03-29 → 2026-06-02 · 20 obs

○A13.225.143.1172026-03-31 → 2026-07-29 · 20 obs

○ 2026-03-30 20:08:38
● 2026-03-31 09:57:04
○ 2026-03-31 11:02:28
○ 2026-03-31 16:28:34
● 2026-04-01 02:32:44
○ 2026-04-01 03:19:28
○ 2026-04-03 10:53:02
● 2026-06-23 18:53:50
○ 2026-06-23 21:41:20
● 2026-06-25 15:16:06
○ 2026-06-25 16:12:50
● 2026-06-26 16:10:44
○ 2026-06-27 11:58:22
○ 2026-06-28 12:46:22
● 2026-07-28 11:38:38
● 2026-07-29 08:00:12
○ 2026-07-29 09:19:46
● 2026-07-29 19:37:00
○ 2026-07-30 01:57:54
○ 2026-08-05 13:26:06

○A13.225.143.1262026-03-31 → 2026-07-29 · 20 obs

○A13.225.143.322026-03-31 → 2026-07-29 · 20 obs

○A13.225.143.832026-03-31 → 2026-07-29 · 20 obs

○A13.227.173.1172026-05-13 → 2026-07-27 · 10 obs

○ 2026-05-04 04:14:42
● 2026-05-13 16:25:00
○ 2026-05-13 17:52:36
● 2026-07-26 11:10:20
○ 2026-07-26 16:45:16
● 2026-07-26 21:43:50
○ 2026-07-26 22:49:34
● 2026-07-27 02:30:08
○ 2026-07-27 03:24:20
○ 2026-08-05 13:26:06

○A13.227.173.272026-05-13 → 2026-07-27 · 10 obs

○A13.227.173.442026-05-13 → 2026-07-27 · 10 obs

○A13.227.173.452026-05-13 → 2026-07-27 · 10 obs

○A13.249.182.1222026-03-14 → 2026-08-04 · 26 obs

○ 2026-03-14 13:01:18
● 2026-03-14 16:45:08
○ 2026-03-14 17:51:04
● 2026-03-15 04:10:18
● 2026-03-15 05:13:16
○ 2026-03-15 06:26:26
○ 2026-03-26 18:34:46
● 2026-07-03 05:54:34
● 2026-07-07 10:29:32
○ 2026-07-11 07:26:38
● 2026-07-19 18:48:30
○ 2026-07-19 21:13:04
● 2026-07-24 06:30:24
○ 2026-07-25 11:17:14
● 2026-07-29 09:19:46
● 2026-07-30 15:36:16
○ 2026-07-30 16:56:08
● 2026-08-01 09:51:12
○ 2026-08-01 10:21:58
● 2026-08-02 23:41:06
○ 2026-08-03 00:33:20
● 2026-08-03 11:41:20
○ 2026-08-03 17:05:02
● 2026-08-04 12:27:40
○ 2026-08-04 17:07:44
○ 2026-08-05 13:26:06

○A13.249.182.142026-03-14 → 2026-08-04 · 26 obs

○A13.249.182.82026-03-14 → 2026-08-04 · 26 obs

○A13.249.182.92026-03-14 → 2026-08-04 · 26 obs

○A13.33.235.1142026-03-25 → 2026-03-25 · 4 obs

○ 2026-03-25 14:31:34
● 2026-03-25 23:58:18
○ 2026-03-26 11:40:02
○ 2026-08-05 13:26:06

○A13.33.235.452026-03-25 → 2026-03-25 · 4 obs

○ 2026-03-25 14:31:34
● 2026-03-25 23:58:18
○ 2026-03-26 11:40:02
○ 2026-08-05 13:26:06

○A13.33.235.632026-03-25 → 2026-03-25 · 4 obs

○ 2026-03-25 14:31:34
● 2026-03-25 23:58:18
○ 2026-03-26 11:40:02
○ 2026-08-05 13:26:06

○A13.33.235.662026-03-25 → 2026-03-25 · 4 obs

○ 2026-03-25 14:31:34
● 2026-03-25 23:58:18
○ 2026-03-26 11:40:02
○ 2026-08-05 13:26:06

○A13.35.163.1072026-06-02 → 2026-06-02 · 4 obs

○ 2026-06-01 22:45:42
● 2026-06-02 02:01:26
○ 2026-06-02 03:10:40
○ 2026-08-05 13:26:06

○A13.35.163.292026-06-02 → 2026-06-02 · 4 obs

○ 2026-06-01 22:45:42
● 2026-06-02 02:01:26
○ 2026-06-02 03:10:40
○ 2026-08-05 13:26:06

○A13.35.163.532026-06-02 → 2026-06-02 · 4 obs

○ 2026-06-01 22:45:42
● 2026-06-02 02:01:26
○ 2026-06-02 03:10:40
○ 2026-08-05 13:26:06

○A13.35.163.782026-06-02 → 2026-06-02 · 4 obs

○ 2026-06-01 22:45:42
● 2026-06-02 02:01:26
○ 2026-06-02 03:10:40
○ 2026-08-05 13:26:06

●A18.160.10.152026-02-28 → 2026-08-05 · 27 obs

● 2026-02-28 20:58:06
● 2026-03-01 04:27:40
○ 2026-03-01 10:38:28
● 2026-03-01 23:40:08
○ 2026-03-02 04:21:06
○ 2026-03-08 01:08:56
● 2026-03-11 05:12:46
● 2026-03-18 19:24:44
○ 2026-03-20 22:26:20
○ 2026-06-16 00:05:34
● 2026-06-21 15:38:36
○ 2026-06-25 04:10:14
○ 2026-07-11 00:05:40
● 2026-07-11 16:24:26
○ 2026-07-12 00:06:50
● 2026-08-02 23:01:58
○ 2026-08-02 23:41:06
● 2026-08-03 00:33:20
○ 2026-08-03 01:34:20
● 2026-08-03 04:13:58
○ 2026-08-03 10:48:26
● 2026-08-03 17:05:02
○ 2026-08-03 23:46:08
● 2026-08-04 05:04:32
○ 2026-08-04 12:27:40
● 2026-08-04 17:07:44
● 2026-08-05 13:26:06

●A18.160.10.592026-02-28 → 2026-08-05 · 27 obs

●A18.160.10.602026-02-28 → 2026-08-05 · 27 obs

●A18.160.10.712026-02-28 → 2026-08-05 · 27 obs

○A18.161.21.182026-04-22 → 2026-08-02 · 18 obs

○ 2026-04-17 09:27:32
● 2026-04-22 22:06:12
○ 2026-04-23 00:04:22
○ 2026-04-23 06:53:22
● 2026-04-23 07:52:56
○ 2026-04-23 13:46:36
○ 2026-04-28 01:13:52
● 2026-04-28 13:40:58
○ 2026-04-28 21:37:22
○ 2026-05-03 09:00:00
● 2026-05-03 19:53:54
○ 2026-05-04 04:14:42
○ 2026-05-20 11:00:36
● 2026-05-20 11:54:24
○ 2026-05-20 13:19:08
● 2026-08-02 17:02:52
○ 2026-08-02 17:46:50
○ 2026-08-05 13:26:06

○A18.161.21.272026-04-22 → 2026-08-02 · 18 obs

○A18.161.21.512026-04-22 → 2026-08-02 · 18 obs

○A18.161.21.722026-04-22 → 2026-08-02 · 18 obs

○A18.164.144.112026-05-30 → 2026-06-03 · 12 obs

○ 2026-05-29 21:39:28
● 2026-05-30 15:06:12
○ 2026-05-30 21:00:58
○ 2026-06-01 10:17:24
● 2026-06-01 13:52:36
● 2026-06-01 22:45:42
○ 2026-06-02 02:01:26
○ 2026-06-02 23:56:26
● 2026-06-03 03:12:02
● 2026-06-03 04:41:34
○ 2026-06-03 06:50:16
○ 2026-08-05 13:26:06

○A18.164.144.332026-05-30 → 2026-06-03 · 12 obs

○A18.164.144.592026-05-30 → 2026-06-03 · 12 obs

○A18.164.144.992026-05-30 → 2026-06-03 · 12 obs

○A18.238.55.1102026-03-07 → 2026-03-14 · 10 obs

○ 2026-03-07 01:11:06
● 2026-03-07 21:02:38
● 2026-03-08 01:08:56
○ 2026-03-11 05:12:46
● 2026-03-13 08:42:00
○ 2026-03-14 00:27:24
● 2026-03-14 11:36:32
● 2026-03-14 13:01:18
○ 2026-03-14 16:45:08
○ 2026-08-05 13:26:06

○A18.238.55.412026-03-07 → 2026-03-14 · 10 obs

○A18.238.55.512026-03-07 → 2026-03-14 · 10 obs

○A18.238.55.602026-03-07 → 2026-03-14 · 10 obs

○A3.166.152.1022026-07-27 → 2026-07-27 · 8 obs

○ 2026-07-27 03:24:20
● 2026-07-27 08:20:20
○ 2026-07-27 08:54:30
● 2026-07-27 11:28:04
○ 2026-07-27 14:32:16
● 2026-07-27 16:10:22
○ 2026-07-27 16:55:30
○ 2026-08-05 13:26:06

○A3.166.152.462026-07-27 → 2026-07-27 · 8 obs

○ 2026-07-27 03:24:20
● 2026-07-27 08:20:20
○ 2026-07-27 08:54:30
● 2026-07-27 11:28:04
○ 2026-07-27 14:32:16
● 2026-07-27 16:10:22
○ 2026-07-27 16:55:30
○ 2026-08-05 13:26:06

○A3.166.152.62026-07-27 → 2026-07-27 · 8 obs

○ 2026-07-27 03:24:20
● 2026-07-27 08:20:20
○ 2026-07-27 08:54:30
● 2026-07-27 11:28:04
○ 2026-07-27 14:32:16
● 2026-07-27 16:10:22
○ 2026-07-27 16:55:30
○ 2026-08-05 13:26:06

○A3.166.152.852026-07-27 → 2026-07-27 · 8 obs

○ 2026-07-27 03:24:20
● 2026-07-27 08:20:20
○ 2026-07-27 08:54:30
● 2026-07-27 11:28:04
○ 2026-07-27 14:32:16
● 2026-07-27 16:10:22
○ 2026-07-27 16:55:30
○ 2026-08-05 13:26:06

○A3.166.192.1042026-07-13 → 2026-08-01 · 20 obs

○ 2026-07-12 00:06:50
● 2026-07-13 13:43:26
○ 2026-07-13 14:22:00
● 2026-07-13 18:08:42
○ 2026-07-13 20:48:02
● 2026-07-15 04:28:22
○ 2026-07-16 23:17:04
● 2026-07-18 10:32:22
● 2026-07-19 22:38:54
○ 2026-07-21 06:07:46
● 2026-07-23 10:50:54
○ 2026-07-23 14:07:00
● 2026-07-25 11:17:14
○ 2026-07-26 11:10:20
○ 2026-07-30 23:41:42
● 2026-08-01 11:02:14
○ 2026-08-01 11:37:16
● 2026-08-01 19:49:48
○ 2026-08-01 20:26:34
○ 2026-08-05 13:26:06

○A3.166.192.1262026-07-13 → 2026-08-01 · 20 obs

○A3.166.192.282026-07-13 → 2026-08-01 · 20 obs

○A3.166.192.52026-07-13 → 2026-08-01 · 20 obs

○A3.167.138.1012026-05-20 → 2026-06-07 · 20 obs

○ 2026-05-20 16:16:50
● 2026-05-20 21:16:58
● 2026-05-21 22:00:18
○ 2026-05-24 19:52:58
● 2026-05-24 22:54:36
● 2026-05-29 04:30:40
○ 2026-05-29 21:39:28
○ 2026-05-30 15:06:12
● 2026-05-30 21:00:58
● 2026-05-31 06:10:52
○ 2026-06-01 05:34:42
○ 2026-06-02 02:01:26
● 2026-06-02 03:10:40
● 2026-06-02 16:54:28
○ 2026-06-02 23:56:26
○ 2026-06-03 04:41:34
● 2026-06-03 06:50:16
● 2026-06-07 18:06:20
○ 2026-06-08 11:40:54
○ 2026-08-05 13:26:06

○A3.167.138.1062026-05-20 → 2026-06-07 · 20 obs

○A3.167.138.392026-05-20 → 2026-06-07 · 20 obs

○A3.167.138.422026-05-20 → 2026-06-07 · 20 obs

○A3.174.113.1002026-03-24 → 2026-07-13 · 20 obs

○ 2026-03-23 03:54:20
● 2026-03-24 05:03:04
○ 2026-03-24 06:35:00
● 2026-03-24 09:16:38
○ 2026-03-25 01:41:08
○ 2026-03-25 07:04:26
● 2026-03-25 14:31:34
○ 2026-03-25 23:58:18
● 2026-03-26 11:40:02
○ 2026-03-26 15:25:00
○ 2026-03-26 18:34:46
● 2026-03-26 19:56:06
○ 2026-03-27 01:50:32
● 2026-07-11 07:26:38
○ 2026-07-11 16:24:26
● 2026-07-13 16:21:54
○ 2026-07-13 18:08:42
● 2026-07-13 20:48:02
○ 2026-07-13 22:32:00
○ 2026-08-05 13:26:06

○A3.174.113.1122026-03-24 → 2026-07-13 · 20 obs

○A3.174.113.672026-03-24 → 2026-07-13 · 20 obs

○A3.174.113.882026-03-24 → 2026-07-13 · 20 obs

○A3.174.18.1182026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-20 22:26:20
● 2026-03-22 19:09:48
○ 2026-03-23 03:54:20
○ 2026-08-05 13:26:06

○A3.174.18.1252026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-20 22:26:20
● 2026-03-22 19:09:48
○ 2026-03-23 03:54:20
○ 2026-08-05 13:26:06

○A3.174.18.142026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-20 22:26:20
● 2026-03-22 19:09:48
○ 2026-03-23 03:54:20
○ 2026-08-05 13:26:06

○A3.174.18.172026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-20 22:26:20
● 2026-03-22 19:09:48
○ 2026-03-23 03:54:20
○ 2026-08-05 13:26:06

○A3.174.29.112026-04-08 → 2026-04-17 · 20 obs

○ 2026-04-06 21:02:30
● 2026-04-08 01:26:54
● 2026-04-08 16:20:02
○ 2026-04-09 02:40:44
○ 2026-04-09 07:16:52
● 2026-04-09 09:01:12
● 2026-04-09 20:40:40
○ 2026-04-10 00:13:40
● 2026-04-10 08:03:14
● 2026-04-10 21:16:14
○ 2026-04-11 00:12:02
○ 2026-04-11 09:51:46
● 2026-04-11 17:18:36
○ 2026-04-11 20:57:32
○ 2026-04-16 19:41:06
● 2026-04-16 21:47:00
○ 2026-04-16 22:42:16
● 2026-04-17 07:53:52
○ 2026-04-17 09:27:32
○ 2026-08-05 13:26:06

○A3.174.29.432026-04-08 → 2026-04-17 · 20 obs

○A3.174.29.602026-04-08 → 2026-04-17 · 20 obs

○A3.174.29.962026-04-08 → 2026-04-17 · 20 obs

○A3.174.59.1062026-04-11 → 2026-07-28 · 20 obs

○ 2026-04-10 21:16:14
● 2026-04-11 00:12:02
○ 2026-04-11 01:33:08
○ 2026-04-11 02:19:06
● 2026-04-11 09:51:46
○ 2026-04-11 17:18:36
○ 2026-05-19 07:17:32
● 2026-07-01 23:21:26
● 2026-07-02 23:01:16
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○A3.174.59.1102026-04-11 → 2026-07-28 · 20 obs

○A3.174.59.1152026-04-11 → 2026-07-28 · 20 obs

○A3.174.59.222026-04-11 → 2026-07-28 · 20 obs

○A52.84.80.1102026-07-01 → 2026-08-03 · 25 obs

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○A52.84.80.1152026-07-01 → 2026-08-03 · 25 obs

○A52.84.80.342026-07-01 → 2026-08-03 · 25 obs

○A52.84.80.42026-07-01 → 2026-08-03 · 25 obs

○A54.192.55.1122026-05-19 → 2026-05-20 · 13 obs

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○A54.192.55.1282026-05-19 → 2026-05-20 · 13 obs

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○A54.192.55.602026-05-19 → 2026-05-20 · 13 obs

○A54.230.114.1022026-04-09 → 2026-04-09 · 4 obs

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○A54.230.114.1072026-04-09 → 2026-04-09 · 4 obs

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○A54.230.114.242026-04-09 → 2026-04-09 · 4 obs

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○A54.230.114.602026-04-09 → 2026-04-09 · 4 obs

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○A99.86.12.1292026-04-23 → 2026-06-30 · 19 obs

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○A99.86.12.222026-04-23 → 2026-06-30 · 19 obs

○A99.86.12.532026-04-23 → 2026-06-30 · 19 obs

○A99.86.12.552026-04-23 → 2026-06-30 · 19 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
classgap.com	ns-152.awsdns-19.com, ns-900.awsdns-48.net, ns-1849.awsdns-39.co.uk, ns-1350.awsdns-40.org	2 records

✅ Authoritative Response

Server:205.251.192.152

NS records: ns-152.awsdns-19.com, ns-900.awsdns-48.net, ns-1849.awsdns-39.co.uk, ns-1350.awsdns-40.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for classgap.com (unsigned zone)

⏱️ Timing

Total: 435ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`18.160.10.15, 18.160.10.60...`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-152.awsdns-19.com, ns-152.awsdns-19.com)

Analysis

IP Addresses

lesson.classgap.com points to the four IP addresses 18.160.10.15, 18.160.10.59, 18.160.10.60 and 18.160.10.71.

lootapp.ai, rjhill.co.nz, disneysaseresources.com plus two other host names have IP numbers in common with lesson.classgap.com.