dev.teachnegotiation.com - dns.ninja

`dev.teachnegotiation.com`

DNSSEC	⚠️ Not signed
A	18.238.4.24^{🇺🇸 Amazon18.238.4.0/22}
		PTR	`server-18-238-4-24.phl51.r.cloudfront.net`
A	18.238.4.65^{🇺🇸 Amazon18.238.4.0/22}
A	18.238.4.104^{🇺🇸 Amazon18.238.4.0/22}
A	18.238.4.109^{🇺🇸 Amazon18.238.4.0/22}

`teachnegotiation.com`

	DNSSEC	⚠️ Not signed
	A	3.174.59.3^{🇺🇸 Amazon3.174.58.0/23}
	A	3.174.59.39^{🇺🇸 Amazon3.174.58.0/23}
	A	3.174.59.62^{🇺🇸 Amazon3.174.58.0/23}
	A	3.174.59.118^{🇺🇸 Amazon3.174.58.0/23}
	NS	`ns-1716.awsdns-22.co.uk` ⭐
	NS	`ns-1017.awsdns-63.net`
	NS	`ns-1423.awsdns-49.org`
	NS	`ns-371.awsdns-46.com`
	SOA	`ns-1716.awsdns-22.co.uk`awsdns-hostmaster@amazon.com serial=1

Same first word

dev.zone

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dev.ge

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dev.email

dev.de

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dev.s3-eu-west-1.amazonaws.com

dev.services

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dev.moe

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dve.s3.amazonaws.com

evd.cn

dev.uk

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ved.cc

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dev.international

vde.biz

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dev.med

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dev.s3-us-west-2.amazonaws.com

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DNS History

92 records (4 active, 88 former)

○A108.138.14.1002026-06-11 → 2026-07-24 · 85 obs

○ 2026-06-10 21:38:34
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○ 2026-07-25 17:11:08

○A108.138.14.1102026-06-11 → 2026-07-24 · 85 obs

○A108.138.14.332026-06-11 → 2026-07-24 · 85 obs

○A108.138.14.342026-06-11 → 2026-07-24 · 85 obs

○A108.138.217.1112026-02-21 → 2026-07-25 · 47 obs

○ 2026-02-20 22:08:16
● 2026-02-21 08:52:20
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○ 2026-07-25 17:11:08

○A108.138.217.362026-02-21 → 2026-07-25 · 47 obs

○A108.138.217.822026-02-21 → 2026-07-25 · 47 obs

○A108.138.217.892026-02-21 → 2026-07-25 · 47 obs

○A108.139.163.102026-07-02 → 2026-07-25 · 22 obs

○ 2026-07-02 21:29:26
● 2026-07-02 23:56:54
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○A108.139.163.1162026-07-02 → 2026-07-25 · 22 obs

○A108.139.163.22026-07-02 → 2026-07-25 · 22 obs

○A108.139.163.302026-07-02 → 2026-07-25 · 22 obs

○A108.157.173.262026-06-18 → 2026-06-18 · 4 obs

○ 2026-06-18 07:02:14
● 2026-06-18 18:02:24
○ 2026-06-19 01:02:04
○ 2026-07-25 17:11:08

○A108.157.173.612026-06-18 → 2026-06-18 · 4 obs

○ 2026-06-18 07:02:14
● 2026-06-18 18:02:24
○ 2026-06-19 01:02:04
○ 2026-07-25 17:11:08

○A108.157.173.722026-06-18 → 2026-06-18 · 4 obs

○ 2026-06-18 07:02:14
● 2026-06-18 18:02:24
○ 2026-06-19 01:02:04
○ 2026-07-25 17:11:08

○A108.157.173.932026-06-18 → 2026-06-18 · 4 obs

○ 2026-06-18 07:02:14
● 2026-06-18 18:02:24
○ 2026-06-19 01:02:04
○ 2026-07-25 17:11:08

○A13.224.125.1002026-06-16 → 2026-06-21 · 9 obs

○ 2026-06-16 12:46:06
● 2026-06-16 15:26:00
○ 2026-06-16 17:32:00
○ 2026-06-17 07:03:44
● 2026-06-17 14:16:42
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○ 2026-06-21 16:58:28
○ 2026-07-25 17:11:08

○A13.224.125.1202026-06-16 → 2026-06-21 · 9 obs

○A13.224.125.212026-06-16 → 2026-06-21 · 9 obs

○A13.224.125.882026-06-16 → 2026-06-21 · 9 obs

○A13.249.231.1002026-06-06 → 2026-06-06 · 4 obs

○ 2026-06-06 07:17:00
● 2026-06-06 14:59:18
○ 2026-06-06 17:01:42
○ 2026-07-25 17:11:08

○A13.249.231.1162026-06-06 → 2026-06-06 · 4 obs

○ 2026-06-06 07:17:00
● 2026-06-06 14:59:18
○ 2026-06-06 17:01:42
○ 2026-07-25 17:11:08

○A13.249.231.342026-06-06 → 2026-06-06 · 4 obs

○ 2026-06-06 07:17:00
● 2026-06-06 14:59:18
○ 2026-06-06 17:01:42
○ 2026-07-25 17:11:08

○A13.249.231.442026-06-06 → 2026-06-06 · 4 obs

○ 2026-06-06 07:17:00
● 2026-06-06 14:59:18
○ 2026-06-06 17:01:42
○ 2026-07-25 17:11:08

○A13.32.230.1022026-02-17 → 2026-07-25 · 63 obs

○ 2026-02-16 22:04:18
● 2026-02-17 17:46:14
○ 2026-02-17 21:30:34
● 2026-02-17 23:06:28
● 2026-02-18 08:15:00
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● 2026-02-23 12:25:48
● 2026-02-27 11:06:42
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● 2026-03-13 06:51:56
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● 2026-07-17 02:28:04
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○A13.32.230.1032026-02-17 → 2026-07-25 · 63 obs

○A13.32.230.432026-02-17 → 2026-07-25 · 63 obs

○A13.32.230.912026-02-17 → 2026-07-25 · 63 obs

○A13.33.235.1162026-03-25 → 2026-03-26 · 7 obs

○ 2026-03-24 22:28:58
● 2026-03-25 00:53:08
○ 2026-03-25 01:44:46
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○A13.33.235.222026-03-25 → 2026-03-26 · 7 obs

○ 2026-03-24 22:28:58
● 2026-03-25 00:53:08
○ 2026-03-25 01:44:46
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○A13.33.235.502026-03-25 → 2026-03-26 · 7 obs

○ 2026-03-24 22:28:58
● 2026-03-25 00:53:08
○ 2026-03-25 01:44:46
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● 2026-03-26 00:54:32
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○A13.33.235.872026-03-25 → 2026-03-26 · 7 obs

○ 2026-03-24 22:28:58
● 2026-03-25 00:53:08
○ 2026-03-25 01:44:46
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○A13.33.82.312026-04-20 → 2026-05-07 · 20 obs

○ 2026-04-20 09:00:06
● 2026-04-20 20:58:04
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● 2026-04-21 14:50:56
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○A13.33.82.382026-04-20 → 2026-05-07 · 20 obs

○A13.33.82.62026-04-20 → 2026-05-07 · 20 obs

○A13.33.82.732026-04-20 → 2026-05-07 · 20 obs

○A143.204.29.1042026-03-30 → 2026-06-29 · 30 obs

○ 2026-03-30 14:30:44
● 2026-03-30 18:40:10
● 2026-03-30 19:35:58
○ 2026-03-31 04:40:56
● 2026-03-31 06:27:46
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○A143.204.29.372026-03-30 → 2026-06-29 · 30 obs

○A143.204.29.522026-03-30 → 2026-06-29 · 30 obs

○A143.204.29.622026-03-30 → 2026-06-29 · 30 obs

○A18.154.206.1182026-02-26 → 2026-07-23 · 6 obs

○ 2026-02-23 12:25:48
● 2026-02-26 11:39:46
○ 2026-02-26 16:18:28
● 2026-07-23 14:31:30
○ 2026-07-24 00:57:42
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○A18.154.206.1212026-02-26 → 2026-07-23 · 6 obs

○ 2026-02-23 12:25:48
● 2026-02-26 11:39:46
○ 2026-02-26 16:18:28
● 2026-07-23 14:31:30
○ 2026-07-24 00:57:42
○ 2026-07-25 17:11:08

○A18.154.206.572026-02-26 → 2026-07-23 · 6 obs

○ 2026-02-23 12:25:48
● 2026-02-26 11:39:46
○ 2026-02-26 16:18:28
● 2026-07-23 14:31:30
○ 2026-07-24 00:57:42
○ 2026-07-25 17:11:08

○A18.154.206.972026-02-26 → 2026-07-23 · 6 obs

○ 2026-02-23 12:25:48
● 2026-02-26 11:39:46
○ 2026-02-26 16:18:28
● 2026-07-23 14:31:30
○ 2026-07-24 00:57:42
○ 2026-07-25 17:11:08

○A18.161.205.1232026-03-30 → 2026-07-01 · 22 obs

○ 2026-03-29 21:34:36
● 2026-03-30 11:14:02
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○ 2026-04-11 17:02:38
● 2026-04-11 20:31:10
○ 2026-04-12 02:28:38
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○ 2026-05-03 10:32:56
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● 2026-05-07 10:19:28
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● 2026-05-16 14:25:54
○ 2026-05-16 18:22:34
○ 2026-06-01 20:16:34
● 2026-06-02 00:46:56
○ 2026-06-02 05:27:24
● 2026-07-01 23:19:00
○ 2026-07-02 04:13:02
○ 2026-07-25 17:11:08

○A18.161.205.162026-03-30 → 2026-07-01 · 22 obs

○A18.161.205.282026-03-30 → 2026-07-01 · 22 obs

○A18.161.205.712026-03-30 → 2026-07-01 · 22 obs

○A18.161.21.1222026-05-19 → 2026-05-20 · 16 obs

○ 2026-05-18 18:31:10
● 2026-05-19 02:49:52
○ 2026-05-19 05:08:00
○ 2026-05-19 08:31:52
● 2026-05-19 09:11:08
○ 2026-05-19 09:56:40
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● 2026-05-19 16:38:28
○ 2026-05-19 19:15:34
○ 2026-05-19 23:04:40
● 2026-05-20 00:14:10
○ 2026-05-20 01:24:10
○ 2026-05-20 09:48:42
● 2026-05-20 16:45:50
○ 2026-05-20 17:55:50
○ 2026-07-25 17:11:08

○A18.161.21.142026-05-19 → 2026-05-20 · 16 obs

○A18.161.21.482026-05-19 → 2026-05-20 · 16 obs

○A18.161.21.912026-05-19 → 2026-05-20 · 16 obs

○A18.172.134.1052026-05-19 → 2026-07-02 · 23 obs

○ 2026-05-19 05:08:00
● 2026-05-19 08:31:52
○ 2026-05-19 09:11:08
● 2026-05-19 09:56:40
● 2026-05-29 05:46:14
○ 2026-05-29 19:11:12
● 2026-05-30 02:38:28
● 2026-05-31 10:38:00
○ 2026-05-31 22:51:02
● 2026-06-01 18:08:18
● 2026-06-05 21:42:04
○ 2026-06-06 07:17:00
● 2026-06-06 17:01:42
● 2026-06-07 07:26:18
○ 2026-06-07 11:39:56
● 2026-06-07 14:04:40
● 2026-06-07 19:49:36
○ 2026-06-07 23:40:26
● 2026-06-30 16:08:24
○ 2026-06-30 21:55:22
● 2026-07-02 20:34:32
○ 2026-07-02 21:29:26
○ 2026-07-25 17:11:08

○A18.172.134.302026-05-19 → 2026-07-02 · 23 obs

○A18.172.134.662026-05-19 → 2026-07-02 · 23 obs

○A18.172.134.872026-05-19 → 2026-07-02 · 23 obs

●A18.238.4.1042026-07-13 → 2026-07-25 · 21 obs

○ 2026-07-13 20:45:30
● 2026-07-13 21:19:58
○ 2026-07-13 23:58:04
● 2026-07-16 10:45:10
○ 2026-07-16 11:20:56
● 2026-07-17 17:54:24
○ 2026-07-17 19:10:14
● 2026-07-18 01:38:10
○ 2026-07-18 04:32:12
● 2026-07-21 15:55:42
○ 2026-07-21 16:46:26
● 2026-07-22 21:26:16
○ 2026-07-22 22:12:14
● 2026-07-23 05:47:10
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● 2026-07-25 04:39:22
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● 2026-07-25 11:57:30
○ 2026-07-25 14:32:46
● 2026-07-25 17:11:06
● 2026-07-25 17:11:08

●A18.238.4.1092026-07-13 → 2026-07-25 · 21 obs

●A18.238.4.242026-07-13 → 2026-07-25 · 21 obs

●A18.238.4.652026-07-13 → 2026-07-25 · 21 obs

○A18.244.179.1012026-06-16 → 2026-06-16 · 4 obs

○ 2026-06-15 23:52:00
● 2026-06-16 05:05:38
○ 2026-06-16 07:02:10
○ 2026-07-25 17:11:08

○A18.244.179.1122026-06-16 → 2026-06-16 · 4 obs

○ 2026-06-15 23:52:00
● 2026-06-16 05:05:38
○ 2026-06-16 07:02:10
○ 2026-07-25 17:11:08

○A18.244.179.352026-06-16 → 2026-06-16 · 4 obs

○ 2026-06-15 23:52:00
● 2026-06-16 05:05:38
○ 2026-06-16 07:02:10
○ 2026-07-25 17:11:08

○A18.244.179.612026-06-16 → 2026-06-16 · 4 obs

○ 2026-06-15 23:52:00
● 2026-06-16 05:05:38
○ 2026-06-16 07:02:10
○ 2026-07-25 17:11:08

○A18.67.233.1062026-05-30 → 2026-06-04 · 18 obs

○ 2026-05-30 02:38:28
● 2026-05-30 13:04:12
○ 2026-05-30 14:08:20
○ 2026-06-02 05:27:24
● 2026-06-02 06:11:30
○ 2026-06-02 08:13:42
● 2026-06-02 09:12:00
● 2026-06-02 09:54:12
○ 2026-06-02 12:05:14
○ 2026-06-04 05:30:58
● 2026-06-04 08:15:18
○ 2026-06-04 10:33:22
○ 2026-06-04 12:14:14
● 2026-06-04 13:50:08
○ 2026-06-04 15:27:46
● 2026-06-04 17:01:30
○ 2026-06-04 19:00:32
○ 2026-07-25 17:11:08

○A18.67.233.1082026-05-30 → 2026-06-04 · 18 obs

○A18.67.233.1202026-05-30 → 2026-06-04 · 18 obs

○A18.67.233.1232026-05-30 → 2026-06-04 · 18 obs

○A3.162.247.172026-03-28 → 2026-06-10 · 20 obs

○ 2026-03-28 00:51:14
● 2026-03-28 13:31:18
○ 2026-03-28 15:35:00
○ 2026-03-28 17:57:28
● 2026-03-29 10:42:50
○ 2026-03-29 21:34:36
○ 2026-04-02 00:51:08
● 2026-04-02 09:33:44
○ 2026-04-03 08:30:30
○ 2026-05-04 13:36:34
● 2026-05-04 15:11:46
● 2026-05-05 19:40:10
○ 2026-05-06 16:23:54
○ 2026-06-08 11:49:14
● 2026-06-08 21:10:36
○ 2026-06-09 19:00:32
○ 2026-06-09 20:37:06
● 2026-06-10 18:58:28
○ 2026-06-10 21:38:34
○ 2026-07-25 17:11:08

○A3.162.247.22026-03-28 → 2026-06-10 · 20 obs

○A3.162.247.822026-03-28 → 2026-06-10 · 20 obs

○A3.162.247.902026-03-28 → 2026-06-10 · 20 obs

○A3.163.10.1102026-05-28 → 2026-06-09 · 21 obs

○ 2026-05-20 17:55:50
● 2026-05-28 13:32:34
○ 2026-05-28 14:10:58
○ 2026-05-29 05:46:14
● 2026-05-29 12:05:16
● 2026-05-29 19:11:12
○ 2026-05-30 02:38:28
○ 2026-05-31 10:38:00
● 2026-05-31 20:46:04
● 2026-05-31 22:51:02
○ 2026-06-01 18:08:18
○ 2026-06-05 21:42:04
● 2026-06-06 07:17:00
○ 2026-06-06 14:59:18
○ 2026-06-07 19:49:36
● 2026-06-07 23:40:26
○ 2026-06-08 11:49:14
○ 2026-06-09 19:00:32
● 2026-06-09 20:37:06
○ 2026-06-10 18:58:28
○ 2026-07-25 17:11:08

○A3.163.10.42026-05-28 → 2026-06-09 · 21 obs

○A3.163.10.502026-05-28 → 2026-06-09 · 21 obs

○A3.163.10.82026-05-28 → 2026-06-09 · 21 obs

○A3.171.61.1072026-02-15 → 2026-07-10 · 43 obs

● 2026-02-15 04:59:26
● 2026-02-16 22:04:18
○ 2026-02-17 17:46:14
● 2026-02-17 21:30:34
● 2026-02-20 11:34:00
○ 2026-02-20 22:08:16
○ 2026-03-05 08:29:50
● 2026-03-05 22:43:14
● 2026-03-07 13:08:04
○ 2026-03-08 02:49:50
○ 2026-04-17 10:49:42
● 2026-04-19 02:38:10
○ 2026-04-19 17:57:36
○ 2026-06-17 07:03:44
● 2026-06-19 06:17:36
○ 2026-06-19 07:23:52
● 2026-06-20 02:08:14
○ 2026-06-20 03:38:52
● 2026-06-21 19:46:30
○ 2026-06-21 23:54:50
● 2026-06-22 03:48:30
○ 2026-06-22 04:38:10
● 2026-06-23 11:05:12
○ 2026-06-23 12:38:20
● 2026-06-24 08:16:22
○ 2026-06-24 10:15:06
● 2026-06-30 05:48:44
○ 2026-06-30 07:16:42
● 2026-06-30 15:37:16
○ 2026-06-30 16:08:24
● 2026-07-03 00:57:08
○ 2026-07-03 03:41:36
● 2026-07-03 04:26:18
○ 2026-07-03 08:37:26
● 2026-07-08 19:40:42
○ 2026-07-08 21:33:20
● 2026-07-09 21:24:08
○ 2026-07-09 22:12:16
● 2026-07-10 02:11:22
○ 2026-07-10 03:19:28
● 2026-07-10 12:29:42
○ 2026-07-10 13:46:08
○ 2026-07-25 17:11:08

○A3.171.61.232026-02-15 → 2026-07-10 · 43 obs

○A3.171.61.252026-02-15 → 2026-07-10 · 43 obs

○A3.171.61.412026-02-15 → 2026-07-10 · 43 obs

○A3.174.113.1052026-03-24 → 2026-07-20 · 45 obs

○ 2026-03-22 16:04:18
● 2026-03-24 13:08:24
● 2026-03-24 17:19:06
○ 2026-03-24 21:09:30
● 2026-03-24 21:40:52
● 2026-03-24 22:28:58
○ 2026-03-25 00:53:08
○ 2026-03-25 01:44:46
● 2026-03-25 14:44:38
● 2026-03-25 19:29:58
○ 2026-03-25 22:19:50
○ 2026-03-26 03:34:10
● 2026-03-26 07:07:52
● 2026-03-26 07:58:32
○ 2026-03-26 09:09:20
○ 2026-03-27 02:10:34
● 2026-03-27 05:55:32
○ 2026-03-27 10:48:48
● 2026-03-27 15:04:54
○ 2026-03-28 00:51:14
● 2026-07-11 20:30:04
○ 2026-07-12 00:49:30
● 2026-07-12 16:10:48
○ 2026-07-12 17:02:56
● 2026-07-12 22:05:00
○ 2026-07-13 05:40:04
● 2026-07-13 20:45:30
○ 2026-07-13 21:19:58
● 2026-07-14 01:56:34
○ 2026-07-14 05:25:16
● 2026-07-14 11:10:18
○ 2026-07-14 13:21:44
● 2026-07-15 05:27:24
○ 2026-07-15 07:11:18
● 2026-07-15 17:55:34
○ 2026-07-15 22:33:44
● 2026-07-16 16:47:14
○ 2026-07-16 19:16:42
● 2026-07-16 22:54:00
○ 2026-07-17 02:28:04
● 2026-07-19 02:06:42
○ 2026-07-19 03:05:32
● 2026-07-20 15:29:02
○ 2026-07-20 20:07:54
○ 2026-07-25 17:11:08

○A3.174.113.1102026-03-24 → 2026-07-20 · 45 obs

○A3.174.113.32026-03-24 → 2026-07-20 · 45 obs

○A3.174.113.652026-03-24 → 2026-07-20 · 45 obs

○A3.174.29.1082026-04-08 → 2026-04-20 · 20 obs

○ 2026-04-05 14:24:18
● 2026-04-08 15:14:44
○ 2026-04-08 21:25:22
○ 2026-04-09 02:27:12
● 2026-04-09 03:20:02
● 2026-04-09 12:53:46
○ 2026-04-09 18:05:40
● 2026-04-10 03:14:02
○ 2026-04-10 13:32:04
○ 2026-04-15 00:53:34
● 2026-04-15 13:02:28
● 2026-04-16 07:58:46
○ 2026-04-17 00:14:36
○ 2026-04-19 02:38:10
● 2026-04-19 17:57:36
● 2026-04-19 20:42:40
○ 2026-04-19 21:15:30
● 2026-04-20 06:56:40
○ 2026-04-20 09:00:06
○ 2026-07-25 17:11:08

○A3.174.29.552026-04-08 → 2026-04-20 · 20 obs

○A3.174.29.662026-04-08 → 2026-04-20 · 20 obs

○A3.174.29.812026-04-08 → 2026-04-20 · 20 obs

○A99.84.234.1052026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-22 13:06:26
● 2026-03-22 15:05:56
○ 2026-03-22 16:04:18
○ 2026-07-25 17:11:08

○A99.84.234.1222026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-22 13:06:26
● 2026-03-22 15:05:56
○ 2026-03-22 16:04:18
○ 2026-07-25 17:11:08

○A99.84.234.352026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-22 13:06:26
● 2026-03-22 15:05:56
○ 2026-03-22 16:04:18
○ 2026-07-25 17:11:08

○A99.84.234.372026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-22 13:06:26
● 2026-03-22 15:05:56
○ 2026-03-22 16:04:18
○ 2026-07-25 17:11:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
teachnegotiation.com	ns-371.awsdns-46.com, ns-1017.awsdns-63.net, ns-1716.awsdns-22.co.uk, ns-1423.awsdns-49.org	2 records

✅ Authoritative Response

Server:205.251.193.115

NS records: ns-371.awsdns-46.com, ns-1017.awsdns-63.net, ns-1716.awsdns-22.co.uk, ns-1423.awsdns-49.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for teachnegotiation.com (unsigned zone)

⏱️ Timing

Total: 525ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`18.238.4.104, 18.238.4.109...`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-371.awsdns-46.com, ns-371.awsdns-46.com)

Analysis

IP Addresses

dev.teachnegotiation.com has four IP addresses: 18.238.4.24, 18.238.4.65, 18.238.4.104 and 18.238.4.109.

cdn.dvc.americanwagering.com, rate-sheets-files.qlms.foc.zone, hansonxpress.com plus two other host names have IP numbers in common with dev.teachnegotiation.com.