`postgraduatesearch.net`

DNSSEC	⚠️ Not signed
A	18.67.65.84^{🇺🇸 Amazon18.67.64.0/21}
		PTR	`server-18-67-65-84.iad89.r.cloudfront.net`
A	18.67.65.113^{🇺🇸 Amazon18.67.64.0/21}
A	18.67.65.127^{🇺🇸 Amazon18.67.64.0/21}
A	18.67.65.128^{🇺🇸 Amazon18.67.64.0/21}
NS	`ns-377.awsdns-47.com` ⭐
		A	2600:9000:5301:7900::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-377.awsdns-47.com`
		A	205.251.193.121^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-377.awsdns-47.com`
NS	`ns-1094.awsdns-08.org`
		A	2600:9000:5304:4600::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1094.awsdns-08.org`
		A	205.251.196.70^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1094.awsdns-08.org`
NS	`ns-1838.awsdns-37.co.uk`
		A	2600:9000:5307:2e00::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1838.awsdns-37.co.uk`
		A	205.251.199.46^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1838.awsdns-37.co.uk`
NS	`ns-920.awsdns-51.net`
		A	2600:9000:5303:9800::1^{🇺🇸 Amazon2600:9000:5303::/48 - CloudFront}
			PTR	`ns-920.awsdns-51.net`
		A	205.251.195.152^{🇺🇸 Amazon205.251.195.0/24 prefix}
			PTR	`ns-920.awsdns-51.net`
SOA	`ns-377.awsdns-47.com`awsdns-hostmaster@amazon.com serial=1

`net`

	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=1771291465

Same first word

postgraduatesearch.org

postgraduatesearch.com

postgraduatesearch.net

DNS History

44 records (8 active, 36 former)

●NSns-1094.awsdns-08.org2026-02-15 → 2026-03-22 · 3 obs

○ 2018-01-15 04:34:58
● 2026-02-15 22:30:10
● 2026-03-22 11:05:16

●NSns-1838.awsdns-37.co.uk2026-02-15 → 2026-03-22 · 3 obs

○ 2018-01-15 04:34:58
● 2026-02-15 22:30:10
● 2026-03-22 11:05:16

●NSns-377.awsdns-47.com2026-02-15 → 2026-03-22 · 3 obs

○ 2018-01-15 04:34:58
● 2026-02-15 22:30:10
● 2026-03-22 11:05:16

●NSns-920.awsdns-51.net2026-02-15 → 2026-03-22 · 3 obs

○ 2018-01-15 04:34:58
● 2026-02-15 22:30:10
● 2026-03-22 11:05:16

○NSns1.connaught.net2015-07-05 → 2015-11-14 · 4 obs

● 2015-07-05 02:37:36
● 2015-11-14 20:25:16
○ 2016-02-07 06:54:06
○ 2026-03-22 11:05:16

○NSns10.connaught.net2015-07-05 → 2018-01-15 · 4 obs

● 2015-07-05 02:37:36
● 2018-01-15 04:34:58
○ 2026-02-15 22:30:10
○ 2026-03-22 11:05:16

○NSns11.connaught.net2015-07-05 → 2018-01-15 · 4 obs

● 2015-07-05 02:37:36
● 2018-01-15 04:34:58
○ 2026-02-15 22:30:10
○ 2026-03-22 11:05:16

○NSns12.connaught.net2015-07-05 → 2015-11-14 · 4 obs

● 2015-07-05 02:37:36
● 2015-11-14 20:25:16
○ 2016-02-07 06:54:06
○ 2026-03-22 11:05:16

○NSns13.connaught.net2015-07-05 → 2015-11-14 · 4 obs

● 2015-07-05 02:37:36
● 2015-11-14 20:25:16
○ 2016-02-07 06:54:06
○ 2026-03-22 11:05:16

○NSns21.connaught.net2015-11-14 → 2018-01-15 · 5 obs

○ 2015-07-05 02:37:36
● 2015-11-14 20:25:16
● 2018-01-15 04:34:58
○ 2026-02-15 22:30:10
○ 2026-03-22 11:05:16

○NSns22.connaught.net2015-11-14 → 2018-01-15 · 5 obs

○ 2015-07-05 02:37:36
● 2015-11-14 20:25:16
● 2018-01-15 04:34:58
○ 2026-02-15 22:30:10
○ 2026-03-22 11:05:16

○NSnsmaster.connaught.net2015-07-05 → 2018-01-15 · 4 obs

● 2015-07-05 02:37:36
● 2018-01-15 04:34:58
○ 2026-02-15 22:30:10
○ 2026-03-22 11:05:16

○A108.139.47.1052026-03-07 → 2026-03-14 · 14 obs

○ 2026-03-07 18:52:50
● 2026-03-07 21:31:12
● 2026-03-07 23:27:06
○ 2026-03-08 06:03:08
○ 2026-03-08 14:19:44
● 2026-03-08 17:28:38
○ 2026-03-08 20:53:44
○ 2026-03-13 02:03:26
● 2026-03-13 04:06:38
○ 2026-03-13 12:22:54
○ 2026-03-14 14:13:58
● 2026-03-14 15:18:14
○ 2026-03-14 16:39:22
○ 2026-03-22 11:05:16

○A108.139.47.222026-03-07 → 2026-03-14 · 14 obs

○A108.139.47.412026-03-07 → 2026-03-14 · 14 obs

○A108.139.47.462026-03-07 → 2026-03-14 · 14 obs

○A13.32.230.1182026-03-14 → 2026-03-14 · 4 obs

○ 2026-03-14 13:28:30
● 2026-03-14 14:13:58
○ 2026-03-14 15:18:14
○ 2026-03-22 11:05:16

○A13.32.230.552026-03-14 → 2026-03-14 · 4 obs

○ 2026-03-14 13:28:30
● 2026-03-14 14:13:58
○ 2026-03-14 15:18:14
○ 2026-03-22 11:05:16

○A13.32.230.632026-03-14 → 2026-03-14 · 4 obs

○ 2026-03-14 13:28:30
● 2026-03-14 14:13:58
○ 2026-03-14 15:18:14
○ 2026-03-22 11:05:16

○A13.32.230.952026-03-14 → 2026-03-14 · 4 obs

○ 2026-03-14 13:28:30
● 2026-03-14 14:13:58
○ 2026-03-14 15:18:14
○ 2026-03-22 11:05:16

○A143.204.194.1002026-02-23 → 2026-02-23 · 4 obs

○ 2026-02-22 06:33:54
● 2026-02-23 07:46:54
○ 2026-02-23 12:50:00
○ 2026-03-22 11:05:16

○A143.204.194.1152026-02-23 → 2026-02-23 · 4 obs

○ 2026-02-22 06:33:54
● 2026-02-23 07:46:54
○ 2026-02-23 12:50:00
○ 2026-03-22 11:05:16

○A143.204.194.372026-02-23 → 2026-02-23 · 4 obs

○ 2026-02-22 06:33:54
● 2026-02-23 07:46:54
○ 2026-02-23 12:50:00
○ 2026-03-22 11:05:16

○A143.204.194.912026-02-23 → 2026-02-23 · 4 obs

○ 2026-02-22 06:33:54
● 2026-02-23 07:46:54
○ 2026-02-23 12:50:00
○ 2026-03-22 11:05:16

●A18.67.65.1132026-02-15 → 2026-03-22 · 59 obs

● 2026-02-15 22:30:10
○ 2026-02-17 00:21:18
● 2026-02-17 17:06:06
● 2026-02-18 13:52:06
○ 2026-02-18 17:51:34
○ 2026-02-19 09:52:40
● 2026-02-19 13:41:16
○ 2026-02-20 00:46:02
● 2026-02-20 05:52:46
○ 2026-02-20 08:23:16
○ 2026-02-21 11:35:00
● 2026-02-21 14:35:54
○ 2026-02-21 19:20:14
○ 2026-02-23 12:50:00
● 2026-02-23 17:02:58
○ 2026-02-23 22:25:08
● 2026-02-24 02:24:10
○ 2026-02-24 03:56:38
○ 2026-02-25 04:08:30
● 2026-02-25 19:58:34
○ 2026-02-25 21:00:12
○ 2026-02-27 03:49:36
● 2026-02-27 14:23:06
○ 2026-02-28 04:22:40
○ 2026-02-28 09:28:22
● 2026-02-28 23:56:42
● 2026-03-01 00:48:44
○ 2026-03-01 03:19:46
● 2026-03-01 04:07:50
○ 2026-03-01 05:43:16
○ 2026-03-03 00:24:20
● 2026-03-03 02:20:16
○ 2026-03-04 01:23:06
● 2026-03-04 12:08:38
● 2026-03-04 13:27:08
○ 2026-03-04 23:38:02
○ 2026-03-06 18:55:20
● 2026-03-06 23:42:22
● 2026-03-07 00:42:44
○ 2026-03-07 10:21:50
○ 2026-03-09 05:55:38
● 2026-03-09 06:36:26
○ 2026-03-09 12:06:54
○ 2026-03-11 08:29:02
● 2026-03-11 13:16:12
○ 2026-03-11 15:07:08
○ 2026-03-13 12:22:54
● 2026-03-14 00:09:46
● 2026-03-14 01:01:20
○ 2026-03-14 04:50:00
○ 2026-03-14 22:21:36
● 2026-03-15 00:11:14
○ 2026-03-15 02:42:56
○ 2026-03-15 04:39:24
● 2026-03-15 06:17:54
○ 2026-03-15 09:45:42
○ 2026-03-22 07:40:44
● 2026-03-22 11:05:14
● 2026-03-22 11:05:16

●A18.67.65.1272026-02-15 → 2026-03-22 · 59 obs

●A18.67.65.1282026-02-15 → 2026-03-22 · 59 obs

●A18.67.65.842026-02-15 → 2026-03-22 · 59 obs

○A216.137.44.102026-02-17 → 2026-02-17 · 4 obs

○ 2026-02-15 22:30:10
● 2026-02-17 00:21:18
○ 2026-02-17 17:06:06
○ 2026-03-22 11:05:16

○A216.137.44.1162026-02-17 → 2026-02-17 · 4 obs

○ 2026-02-15 22:30:10
● 2026-02-17 00:21:18
○ 2026-02-17 17:06:06
○ 2026-03-22 11:05:16

○A216.137.44.342026-02-17 → 2026-02-17 · 4 obs

○ 2026-02-15 22:30:10
● 2026-02-17 00:21:18
○ 2026-02-17 17:06:06
○ 2026-03-22 11:05:16

○A216.137.44.422026-02-17 → 2026-02-17 · 4 obs

○ 2026-02-15 22:30:10
● 2026-02-17 00:21:18
○ 2026-02-17 17:06:06
○ 2026-03-22 11:05:16

○A3.163.125.1202026-02-18 → 2026-03-19 · 81 obs

○ 2026-02-18 13:52:06
● 2026-02-18 17:51:34
○ 2026-02-18 21:16:48
○ 2026-02-18 23:01:00
● 2026-02-19 04:01:34
○ 2026-02-19 09:52:40
○ 2026-02-20 05:52:46
● 2026-02-20 08:23:16
○ 2026-02-20 11:24:18
○ 2026-02-23 17:02:58
● 2026-02-23 22:25:08
○ 2026-02-24 02:24:10
● 2026-02-24 03:56:38
● 2026-02-24 06:43:58
○ 2026-02-24 16:26:40
○ 2026-02-25 00:36:18
● 2026-02-25 04:08:30
○ 2026-02-25 19:58:34
○ 2026-02-25 21:00:12
● 2026-02-26 01:21:36
○ 2026-02-26 22:26:04
● 2026-02-27 03:49:36
○ 2026-02-27 14:23:06
● 2026-02-28 04:22:40
○ 2026-02-28 09:28:22
○ 2026-03-02 13:09:44
● 2026-03-02 18:46:30
● 2026-03-03 00:24:20
○ 2026-03-03 02:20:16
○ 2026-03-05 06:37:08
● 2026-03-05 08:35:02
● 2026-03-05 11:08:58
○ 2026-03-05 13:52:14
○ 2026-03-06 03:12:38
● 2026-03-06 18:55:20
○ 2026-03-06 23:42:22
○ 2026-03-07 00:42:44
● 2026-03-07 10:21:50
● 2026-03-07 15:43:32
○ 2026-03-07 18:52:50
○ 2026-03-08 07:40:44
● 2026-03-08 08:34:08
○ 2026-03-08 14:19:44
○ 2026-03-08 22:30:00
● 2026-03-09 01:12:00
○ 2026-03-09 03:18:26
○ 2026-03-09 12:06:54
● 2026-03-09 14:45:34
○ 2026-03-10 01:36:42
○ 2026-03-10 08:15:12
● 2026-03-10 08:48:00
○ 2026-03-10 10:58:42
○ 2026-03-10 23:37:38
● 2026-03-11 03:54:56
○ 2026-03-11 08:29:02
○ 2026-03-12 13:19:34
● 2026-03-12 19:09:44
○ 2026-03-13 02:03:26
○ 2026-03-14 01:01:20
● 2026-03-14 04:50:00
○ 2026-03-14 06:50:40
○ 2026-03-16 03:49:32
● 2026-03-16 05:34:02
○ 2026-03-16 08:58:54
● 2026-03-16 10:03:14
○ 2026-03-16 10:45:30
○ 2026-03-17 04:57:02
● 2026-03-17 06:26:38
● 2026-03-17 07:08:46
○ 2026-03-17 08:23:30
● 2026-03-17 13:20:46
○ 2026-03-17 14:04:08
○ 2026-03-18 06:38:46
● 2026-03-18 16:57:48
● 2026-03-18 19:53:42
○ 2026-03-19 01:26:12
○ 2026-03-19 05:52:54
● 2026-03-19 09:39:18
● 2026-03-19 17:53:32
○ 2026-03-20 03:02:54
○ 2026-03-22 11:05:16

○A3.163.125.422026-02-18 → 2026-03-19 · 81 obs

○A3.163.125.642026-02-18 → 2026-03-19 · 81 obs

○A3.163.125.962026-02-18 → 2026-03-19 · 81 obs

○A52.222.177.1102026-02-18 → 2026-03-22 · 115 obs

○ 2026-02-18 17:51:34
● 2026-02-18 21:16:48
● 2026-02-18 23:01:00
○ 2026-02-19 04:01:34
● 2026-02-19 09:52:40
○ 2026-02-19 13:41:16
● 2026-02-20 00:46:02
○ 2026-02-20 05:52:46
○ 2026-02-20 08:23:16
● 2026-02-20 11:24:18
● 2026-02-21 11:35:00
○ 2026-02-21 14:35:54
● 2026-02-21 19:20:14
● 2026-02-22 06:33:54
○ 2026-02-23 07:46:54
● 2026-02-23 12:50:00
○ 2026-02-23 17:02:58
○ 2026-02-24 06:43:58
● 2026-02-24 16:26:40
● 2026-02-25 00:36:18
○ 2026-02-25 04:08:30
○ 2026-02-25 19:58:34
● 2026-02-25 21:00:12
○ 2026-02-26 01:21:36
● 2026-02-26 22:26:04
○ 2026-02-27 03:49:36
○ 2026-02-28 04:22:40
● 2026-02-28 09:28:22
○ 2026-02-28 23:56:42
○ 2026-03-01 00:48:44
● 2026-03-01 03:19:46
○ 2026-03-01 04:07:50
● 2026-03-01 05:43:16
● 2026-03-02 13:09:44
○ 2026-03-02 18:46:30
○ 2026-03-03 02:20:16
● 2026-03-04 01:23:06
○ 2026-03-04 12:08:38
○ 2026-03-04 13:27:08
● 2026-03-04 23:38:02
● 2026-03-05 06:37:08
○ 2026-03-05 08:35:02
○ 2026-03-05 11:08:58
● 2026-03-05 13:52:14
● 2026-03-06 03:12:38
○ 2026-03-06 18:55:20
○ 2026-03-07 15:43:32
● 2026-03-07 18:52:50
○ 2026-03-07 21:31:12
○ 2026-03-07 23:27:06
● 2026-03-08 06:03:08
● 2026-03-08 07:40:44
○ 2026-03-08 08:34:08
● 2026-03-08 14:19:44
○ 2026-03-08 17:28:38
● 2026-03-08 20:53:44
● 2026-03-08 22:30:00
○ 2026-03-09 01:12:00
● 2026-03-09 03:18:26
● 2026-03-09 05:55:38
○ 2026-03-09 06:36:26
● 2026-03-09 12:06:54
○ 2026-03-09 14:45:34
● 2026-03-10 01:36:42
● 2026-03-10 08:15:12
○ 2026-03-10 08:48:00
● 2026-03-10 10:58:42
● 2026-03-10 23:37:38
○ 2026-03-11 03:54:56
● 2026-03-11 08:29:02
○ 2026-03-11 13:16:12
● 2026-03-11 15:07:08
● 2026-03-12 13:19:34
○ 2026-03-12 19:09:44
● 2026-03-13 02:03:26
○ 2026-03-13 04:06:38
● 2026-03-13 12:22:54
○ 2026-03-14 00:09:46
○ 2026-03-14 04:50:00
● 2026-03-14 06:50:40
● 2026-03-14 13:28:30
○ 2026-03-14 14:13:58
○ 2026-03-14 15:18:14
● 2026-03-14 16:39:22
● 2026-03-14 22:21:36
○ 2026-03-15 00:11:14
● 2026-03-15 02:42:56
● 2026-03-15 04:39:24
○ 2026-03-15 06:17:54
● 2026-03-15 09:45:42
● 2026-03-16 03:49:32
○ 2026-03-16 05:34:02
● 2026-03-16 08:58:54
○ 2026-03-16 10:03:14
● 2026-03-16 10:45:30
● 2026-03-17 04:57:02
○ 2026-03-17 06:26:38
○ 2026-03-17 07:08:46
● 2026-03-17 08:23:30
○ 2026-03-17 13:20:46
● 2026-03-17 14:04:08
● 2026-03-18 06:38:46
○ 2026-03-18 16:57:48
○ 2026-03-18 19:53:42
● 2026-03-19 01:26:12
● 2026-03-19 05:52:54
○ 2026-03-19 09:39:18
○ 2026-03-19 17:53:32
● 2026-03-20 03:02:54
● 2026-03-21 19:37:04
○ 2026-03-22 01:12:58
● 2026-03-22 02:42:06
● 2026-03-22 07:40:44
○ 2026-03-22 11:05:14
○ 2026-03-22 11:05:16

○A52.222.177.1252026-02-18 → 2026-03-22 · 115 obs

○A52.222.177.672026-02-18 → 2026-03-22 · 115 obs

○A52.222.177.882026-02-18 → 2026-03-22 · 115 obs

○A54.230.114.1052026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-21 19:37:04
● 2026-03-22 01:12:58
○ 2026-03-22 02:42:06
○ 2026-03-22 11:05:16

○A54.230.114.372026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-21 19:37:04
● 2026-03-22 01:12:58
○ 2026-03-22 02:42:06
○ 2026-03-22 11:05:16

○A54.230.114.582026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-21 19:37:04
● 2026-03-22 01:12:58
○ 2026-03-22 02:42:06
○ 2026-03-22 11:05:16

○A54.230.114.642026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-21 19:37:04
● 2026-03-22 01:12:58
○ 2026-03-22 02:42:06
○ 2026-03-22 11:05:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	k.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net, a.gtld-servers.net...	-
postgraduatesearch.net	ns-377.awsdns-47.com, ns-920.awsdns-51.net, ns-1094.awsdns-08.org, ns-1838.awsdns-37.co.uk	1 record

✅ Authoritative Response

Server: 205.251.199.46

NS records: ns-377.awsdns-47.com, ns-920.awsdns-51.net, ns-1094.awsdns-08.org, ns-1838.awsdns-37.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for postgraduatesearch.net (unsigned zone)

⏱️ Timing

Total: 1689ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`18.67.65.84, 18.67.65.127...`
NS	4	`ns-1094.awsdns-08.org, ns-1838.awsdns-37.co.uk...`
SOA	1	`ns-377.awsdns-47.com awsdns-hostmaster.a`

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns-920.awsdns-51.net)

Analysis

IP Addresses

postgraduatesearch.net resolves to four IPs: 18.67.65.84, 18.67.65.113, 18.67.65.127 and 18.67.65.128.

Other host names such as bownty.dk, cdn.production.us1.one-web-platform.klarna.net, prod.immosolve.de, my.teamio.com and d2821koyjqusra.cloudfront.net share IP numbers with postgraduatesearch.net.

Name Servers

postgraduatesearch.net is delegated to four name servers: ns-377.awsdns-47.com, ns-920.awsdns-51.net, ns-1094.awsdns-08.org and ns-1838.awsdns-37.co.uk.

At least part of the name servers for postgraduatesearch.net are shared with other domains, for instance chappellegardens.com, flife.com, d2i7ydev6t6pzp.cloudfront.net, thehawaiibowl.com and bds.global.

these name servers are often used together with the name servers ns-460.awsdns-57.com, ns-1498.awsdns-59.org, ns-1817.awsdns-35.co.uk, ns1.tukios.net, ns2.tukios.net, ns-124.awsdns-15.com, ns-543.awsdns-03.net and ns-1216.awsdns-24.org.

Host names with two IP numbers:

ns-377.awsdns-47.com points to: 2600:9000:5301:7900::1 and 205.251.193.121

ns-920.awsdns-51.net points to: 2600:9000:5303:9800::1 and 205.251.195.152

ns-1094.awsdns-08.org points to: 2600:9000:5304:4600::1 and 205.251.196.70

ns-1838.awsdns-37.co.uk points to: 2600:9000:5307:2e00::1 and 205.251.199.46

postgraduatesearch.net - robtex.com