`devknows.com`

DNSSEC	⚠️ Not signed
A	18.161.21.75^{🇺🇸 Amazon18.161.16.0/21}
		PTR	`server-18-161-21-75.bos50.r.cloudfront.net`
A	18.161.21.79^{🇺🇸 Amazon18.161.16.0/21}
A	18.161.21.98^{🇺🇸 Amazon18.161.16.0/21}
A	18.161.21.121^{🇺🇸 Amazon18.161.16.0/21}
NS	`ns-124.awsdns-15.com` ⭐
		A	2600:9000:5300:7c00::1^{🇺🇸 Amazon2600:9000:5300::/48 - CloudFront}
			PTR	`ns-124.awsdns-15.com`
		A	205.251.192.124^{🇺🇸 Amazon205.251.192.0/24 prefix}
			PTR	`ns-124.awsdns-15.com`
NS	`ns-1116.awsdns-11.org`
		A	2600:9000:5304:5c00::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1116.awsdns-11.org`
		A	205.251.196.92^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1116.awsdns-11.org`
NS	`ns-1981.awsdns-55.co.uk`
		A	2600:9000:5307:bd00::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1981.awsdns-55.co.uk`
		A	205.251.199.189^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1981.awsdns-55.co.uk`
NS	`ns-786.awsdns-34.net`
		A	2600:9000:5303:1200::1^{🇺🇸 Amazon2600:9000:5303::/48 - CloudFront}
			PTR	`ns-786.awsdns-34.net`
		A	205.251.195.18^{🇺🇸 Amazon205.251.195.0/24 prefix}
			PTR	`ns-786.awsdns-34.net`
MX	`inbound-smtp.us-east-1.amazonaws.com` ⭐
		A	3.211.210.226^{🇺🇸 Amazon3.208.0.0/12 EC2 IAD prefix}
			PTR	`ec2-3-211-210-226.compute-1.amazonaws.com`
		A	44.206.9.87^{🇺🇸 Amazon44.192.0.0/11 EC2 IAD prefix}
			PTR	`ec2-44-206-9-87.compute-1.amazonaws.com`
		A	44.210.166.32^{🇺🇸 Amazon44.192.0.0/11 EC2 IAD prefix}
			PTR	`ec2-44-210-166-32.compute-1.amazonaws.com`
		A	54.164.173.191^{🇺🇸 Amazon54.164.0.0/15 EC2 IAD prefix}
			PTR	`ec2-54-164-173-191.compute-1.amazonaws.com`
		A	54.197.5.236^{🇺🇸 Amazon54.196.0.0/15 EC2 IAD 54.196.0.0/15}
			PTR	`ec2-54-197-5-236.compute-1.amazonaws.com`
SOA	`ns-124.awsdns-15.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=1776981471

Same first word

devknows.com

DNS History

44 records (9 active, 35 former)

●NSns-1116.awsdns-11.org2026-02-17 → 2026-04-23 · 3 obs

○ 2019-12-17 15:37:00
● 2026-02-17 17:51:42
● 2026-04-23 22:14:20

●NSns-124.awsdns-15.com2026-02-17 → 2026-04-23 · 3 obs

○ 2019-12-17 15:37:00
● 2026-02-17 17:51:42
● 2026-04-23 22:14:20

●NSns-1981.awsdns-55.co.uk2026-02-17 → 2026-04-23 · 3 obs

○ 2019-12-17 15:37:00
● 2026-02-17 17:51:42
● 2026-04-23 22:14:20

●NSns-786.awsdns-34.net2026-02-17 → 2026-04-23 · 3 obs

○ 2019-12-17 15:37:00
● 2026-02-17 17:51:42
● 2026-04-23 22:14:20

○NSns69.domaincontrol.com2019-12-17 → 2019-12-17 · 3 obs

● 2019-12-17 15:37:00
○ 2026-02-17 17:51:42
○ 2026-04-23 22:14:20

○NSns70.domaincontrol.com2019-12-17 → 2019-12-17 · 3 obs

● 2019-12-17 15:37:00
○ 2026-02-17 17:51:42
○ 2026-04-23 22:14:20

●MXinbound-smtp.us-east-1.amazonaws.com2026-02-17 → 2026-04-23 · 2 obs

● 2026-02-17 17:51:42
● 2026-04-23 22:14:20

○A108.138.233.1262026-02-25 → 2026-04-23 · 109 obs

○ 2026-02-25 04:35:22
● 2026-02-25 09:52:42
● 2026-03-09 05:29:22
○ 2026-03-11 06:01:44
● 2026-03-11 15:34:46
● 2026-03-13 13:39:54
○ 2026-03-14 05:57:36
● 2026-03-14 11:42:54
● 2026-03-15 22:18:46
○ 2026-03-16 04:02:38
○ 2026-03-17 08:56:50
● 2026-03-17 22:52:20
○ 2026-03-18 00:36:12
● 2026-03-18 03:00:28
● 2026-03-18 13:43:20
○ 2026-03-19 12:49:00
● 2026-03-19 15:41:56
○ 2026-03-20 11:18:46
○ 2026-03-21 10:04:28
● 2026-03-21 13:19:38
○ 2026-03-22 11:26:40
● 2026-03-22 19:44:18
● 2026-03-23 03:27:06
○ 2026-03-23 09:39:54
● 2026-03-23 19:41:20
● 2026-03-24 02:54:02
○ 2026-03-24 11:42:00
○ 2026-03-25 06:12:02
● 2026-03-25 09:03:32
● 2026-03-28 07:38:48
○ 2026-03-30 06:48:44
● 2026-03-30 09:09:40
● 2026-03-31 04:29:34
○ 2026-03-31 10:57:22
● 2026-03-31 14:00:46
● 2026-04-01 03:43:24
○ 2026-04-01 07:11:54
● 2026-04-01 14:16:28
● 2026-04-03 01:48:22
○ 2026-04-03 02:53:38
○ 2026-04-03 04:12:44
● 2026-04-05 08:34:52
● 2026-04-06 13:33:50
○ 2026-04-06 17:57:46
● 2026-04-07 01:07:36
● 2026-04-08 01:41:42
○ 2026-04-08 02:39:46
● 2026-04-08 04:16:34
● 2026-04-08 08:33:16
○ 2026-04-08 21:21:50
● 2026-04-08 22:17:40
○ 2026-04-08 23:43:42
○ 2026-04-09 01:47:30
● 2026-04-09 03:01:14
● 2026-04-09 04:25:42
○ 2026-04-09 17:30:54
○ 2026-04-09 23:51:08
● 2026-04-10 00:45:14
● 2026-04-10 23:53:34
○ 2026-04-11 04:34:34
● 2026-04-11 05:51:50
● 2026-04-11 06:29:34
○ 2026-04-11 09:06:50
● 2026-04-11 10:57:14
○ 2026-04-11 14:20:40
○ 2026-04-12 07:13:32
● 2026-04-12 08:35:22
○ 2026-04-12 10:05:38
○ 2026-04-12 12:22:28
● 2026-04-12 14:02:00
○ 2026-04-12 18:09:38
○ 2026-04-13 00:14:18
● 2026-04-13 02:50:14
● 2026-04-13 06:28:12
○ 2026-04-13 07:50:26
● 2026-04-13 08:50:34
● 2026-04-14 15:45:50
○ 2026-04-14 21:35:42
● 2026-04-14 22:22:44
○ 2026-04-15 00:15:26
○ 2026-04-16 11:54:02
● 2026-04-16 23:09:36
● 2026-04-17 02:22:20
○ 2026-04-17 03:55:10
○ 2026-04-17 10:34:04
● 2026-04-17 13:03:24
○ 2026-04-17 14:24:30
● 2026-04-17 23:00:50
○ 2026-04-19 17:37:52
● 2026-04-20 00:26:12
● 2026-04-20 04:51:18
○ 2026-04-20 16:22:28
○ 2026-04-20 18:27:38
● 2026-04-20 23:29:08
● 2026-04-21 01:48:20
○ 2026-04-21 04:40:18
● 2026-04-21 08:34:48
○ 2026-04-21 12:49:22
○ 2026-04-22 00:45:34
● 2026-04-22 04:58:00
○ 2026-04-22 09:20:18
● 2026-04-22 10:41:06
● 2026-04-22 20:47:34
○ 2026-04-22 22:06:06
● 2026-04-23 04:13:14
○ 2026-04-23 13:55:36
● 2026-04-23 19:23:40
○ 2026-04-23 22:14:16
○ 2026-04-23 22:14:20

○A108.138.233.292026-02-25 → 2026-04-23 · 109 obs

○A108.138.233.882026-02-25 → 2026-04-23 · 109 obs

○A108.138.233.932026-02-25 → 2026-04-23 · 109 obs

○A108.139.134.572026-04-08 → 2026-04-17 · 27 obs

○ 2026-04-08 22:17:40
● 2026-04-08 23:43:42
○ 2026-04-09 00:23:30
○ 2026-04-10 23:53:34
● 2026-04-11 04:34:34
○ 2026-04-11 05:51:50
○ 2026-04-11 06:29:34
● 2026-04-11 09:06:50
○ 2026-04-11 10:57:14
● 2026-04-11 14:20:40
○ 2026-04-12 00:11:56
○ 2026-04-12 08:35:22
● 2026-04-12 10:05:38
○ 2026-04-12 12:22:28
○ 2026-04-12 18:09:38
● 2026-04-12 19:57:50
○ 2026-04-13 00:14:18
○ 2026-04-15 13:37:08
● 2026-04-16 10:34:02
● 2026-04-16 11:54:02
○ 2026-04-16 23:09:36
○ 2026-04-17 02:22:20
● 2026-04-17 03:55:10
○ 2026-04-17 08:26:14
● 2026-04-17 10:34:04
○ 2026-04-17 13:03:24
○ 2026-04-23 22:14:20

○A108.139.134.602026-04-08 → 2026-04-17 · 27 obs

○A108.139.134.752026-04-08 → 2026-04-17 · 27 obs

○A108.139.134.862026-04-08 → 2026-04-17 · 27 obs

○A108.139.166.1092026-03-30 → 2026-04-23 · 64 obs

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

○A108.139.166.1122026-03-30 → 2026-04-23 · 64 obs

○A108.139.166.1152026-03-30 → 2026-04-23 · 64 obs

○A108.139.166.732026-03-30 → 2026-04-23 · 64 obs

○A108.158.122.102026-04-09 → 2026-04-09 · 5 obs

○ 2026-04-08 23:43:42
● 2026-04-09 00:23:30
● 2026-04-09 01:47:30
○ 2026-04-09 03:01:14
○ 2026-04-23 22:14:20

○A108.158.122.182026-04-09 → 2026-04-09 · 5 obs

○ 2026-04-08 23:43:42
● 2026-04-09 00:23:30
● 2026-04-09 01:47:30
○ 2026-04-09 03:01:14
○ 2026-04-23 22:14:20

○A108.158.122.272026-04-09 → 2026-04-09 · 5 obs

○ 2026-04-08 23:43:42
● 2026-04-09 00:23:30
● 2026-04-09 01:47:30
○ 2026-04-09 03:01:14
○ 2026-04-23 22:14:20

○A108.158.122.82026-04-09 → 2026-04-09 · 5 obs

○ 2026-04-08 23:43:42
● 2026-04-09 00:23:30
● 2026-04-09 01:47:30
○ 2026-04-09 03:01:14
○ 2026-04-23 22:14:20

○A13.225.143.102026-04-03 → 2026-04-03 · 5 obs

○ 2026-04-03 01:48:22
● 2026-04-03 02:53:38
● 2026-04-03 04:12:44
○ 2026-04-05 08:34:52
○ 2026-04-23 22:14:20

○A13.225.143.422026-04-03 → 2026-04-03 · 5 obs

○ 2026-04-03 01:48:22
● 2026-04-03 02:53:38
● 2026-04-03 04:12:44
○ 2026-04-05 08:34:52
○ 2026-04-23 22:14:20

○A13.225.143.472026-04-03 → 2026-04-03 · 5 obs

○ 2026-04-03 01:48:22
● 2026-04-03 02:53:38
● 2026-04-03 04:12:44
○ 2026-04-05 08:34:52
○ 2026-04-23 22:14:20

○A13.225.143.802026-04-03 → 2026-04-03 · 5 obs

○ 2026-04-03 01:48:22
● 2026-04-03 02:53:38
● 2026-04-03 04:12:44
○ 2026-04-05 08:34:52
○ 2026-04-23 22:14:20

○A13.249.182.272026-02-25 → 2026-03-21 · 22 obs

○ 2026-02-17 17:51:42
● 2026-02-25 04:35:22
○ 2026-02-25 09:52:42
○ 2026-03-09 05:29:22
● 2026-03-11 06:01:44
○ 2026-03-11 15:34:46
○ 2026-03-13 13:39:54
● 2026-03-14 05:57:36
○ 2026-03-14 11:42:54
○ 2026-03-16 04:02:38
● 2026-03-17 01:05:22
○ 2026-03-17 05:24:26
○ 2026-03-17 22:52:20
● 2026-03-18 00:36:12
○ 2026-03-18 03:00:28
○ 2026-03-18 13:43:20
● 2026-03-19 12:49:00
○ 2026-03-19 15:41:56
○ 2026-03-21 04:17:08
● 2026-03-21 10:04:28
○ 2026-03-21 13:19:38
○ 2026-04-23 22:14:20

○A13.249.182.422026-02-25 → 2026-03-21 · 22 obs

○A13.249.182.62026-02-25 → 2026-03-21 · 22 obs

○A13.249.182.702026-02-25 → 2026-03-21 · 22 obs

●A18.161.21.1212026-04-20 → 2026-04-23 · 12 obs

○ 2026-04-20 16:22:28
● 2026-04-20 18:27:38
○ 2026-04-20 23:29:08
○ 2026-04-21 21:31:14
● 2026-04-22 00:45:34
○ 2026-04-22 04:58:00
○ 2026-04-22 20:47:34
● 2026-04-22 22:06:06
○ 2026-04-23 04:13:14
○ 2026-04-23 19:23:40
● 2026-04-23 22:14:16
● 2026-04-23 22:14:20

●A18.161.21.752026-04-20 → 2026-04-23 · 12 obs

●A18.161.21.792026-04-20 → 2026-04-23 · 12 obs

●A18.161.21.982026-04-20 → 2026-04-23 · 12 obs

○A184.168.221.552019-12-17 → 2019-12-17 · 3 obs

● 2019-12-17 15:37:00
○ 2026-02-17 17:51:42
○ 2026-04-23 22:14:20

○A3.164.206.1082026-03-22 → 2026-03-25 · 8 obs

○ 2026-03-21 13:19:38
● 2026-03-22 11:26:40
○ 2026-03-22 19:44:18
○ 2026-03-24 02:54:02
● 2026-03-24 11:42:00
● 2026-03-25 06:12:02
○ 2026-03-25 09:03:32
○ 2026-04-23 22:14:20

○A3.164.206.52026-03-22 → 2026-03-25 · 8 obs

○ 2026-03-21 13:19:38
● 2026-03-22 11:26:40
○ 2026-03-22 19:44:18
○ 2026-03-24 02:54:02
● 2026-03-24 11:42:00
● 2026-03-25 06:12:02
○ 2026-03-25 09:03:32
○ 2026-04-23 22:14:20

○A3.164.206.682026-03-22 → 2026-03-25 · 8 obs

○ 2026-03-21 13:19:38
● 2026-03-22 11:26:40
○ 2026-03-22 19:44:18
○ 2026-03-24 02:54:02
● 2026-03-24 11:42:00
● 2026-03-25 06:12:02
○ 2026-03-25 09:03:32
○ 2026-04-23 22:14:20

○A3.164.206.952026-03-22 → 2026-03-25 · 8 obs

○ 2026-03-21 13:19:38
● 2026-03-22 11:26:40
○ 2026-03-22 19:44:18
○ 2026-03-24 02:54:02
● 2026-03-24 11:42:00
● 2026-03-25 06:12:02
○ 2026-03-25 09:03:32
○ 2026-04-23 22:14:20

○A3.170.3.1292026-02-17 → 2026-04-19 · 20 obs

○ 2019-12-17 15:37:00
● 2026-02-17 17:51:42
○ 2026-02-25 04:35:22
○ 2026-03-15 22:18:46
● 2026-03-16 04:02:38
○ 2026-03-17 01:05:22
● 2026-03-17 05:24:26
● 2026-03-17 08:56:50
○ 2026-03-17 22:52:20
○ 2026-03-19 15:41:56
● 2026-03-20 11:18:46
● 2026-03-21 04:17:08
○ 2026-03-21 10:04:28
○ 2026-03-23 03:27:06
● 2026-03-23 09:39:54
○ 2026-03-23 19:41:20
○ 2026-04-17 23:00:50
● 2026-04-19 17:37:52
○ 2026-04-20 00:26:12
○ 2026-04-23 22:14:20

○A3.170.3.432026-02-17 → 2026-04-19 · 20 obs

○A3.170.3.802026-02-17 → 2026-04-19 · 20 obs

○A3.170.3.852026-02-17 → 2026-04-19 · 20 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
devknows.com	ns-124.awsdns-15.com, ns-786.awsdns-34.net, ns-1116.awsdns-11.org, ns-1981.awsdns-55.co.uk	2 records

✅ Authoritative Response

Server:205.251.192.124

NS records: ns-124.awsdns-15.com, ns-786.awsdns-34.net, ns-1116.awsdns-11.org, ns-1981.awsdns-55.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for devknows.com (unsigned zone)

⏱️ Timing

Total: 801ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`18.161.21.75, 18.161.21.121...`
NS	4	`ns-1116.awsdns-11.org, ns-124.awsdns-15.com...`
MX	1	`inbound-smtp.us-east-1.amazonaws.com (pr`
SOA	1	`ns-124.awsdns-15.com awsdns-hostmaster.a`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-124.awsdns-15.com, ns-124.awsdns-15.com)

Analysis

IP Addresses

devknows.com points to four IP numbers: 18.161.21.75, 18.161.21.79, 18.161.21.98 and 18.161.21.121.

Other host names, for instance d1gu2rqzttlifi.cloudfront.net, d36vbqzom3ie23.cloudfront.net, allcareobgyn.com, prtzl.io and wwwedmumds.com share IP numbers with devknows.com.

Name Servers

devknows.com is delegated to four name servers: ns-124.awsdns-15.com, ns-786.awsdns-34.net, ns-1116.awsdns-11.org and ns-1981.awsdns-55.co.uk.

devknows.com at least partially shares its name servers with other domains, for instance shoutem.com, arukasu.co.jp, zcooldad.com, gcpr.com.au and coscreening.app.

these name servers are commonly used with the name servers ns-756.awsdns-30.net, ns-543.awsdns-03.net, ns-1216.awsdns-24.org, ns-1838.awsdns-37.co.uk, ns-324.awsdns-40.com and ns-1641.awsdns-13.co.uk.

Host names with two IPs: ns-124.awsdns-15.com points to 2600:9000:5300:7c00::1 and 205.251.192.124; ns-786.awsdns-34.net points to 2600:9000:5303:1200::1 and 205.251.195.18; ns-1116.awsdns-11.org points to 2600:9000:5304:5c00::1 and 205.251.196.92; ns-1981.awsdns-55.co.uk points to 2600:9000:5307:bd00::1 and 205.251.199.189.

Mail Servers

devknows.com is served by a single mail server, inbound-smtp.us-east-1.amazonaws.com.

devknows.com uses the same mail server setup as other domains such as medtronic-collab.slack.com, kevinandalin.com, andrewdobson.net, akzoukcommsteam.slack.com and linksquares.dev.

devknows.com shares some mail servers with other domains, including sistemaprism.com.br, youcast.net, nal-speccoll.atlassian.net, mobiledeluxe.atlassian.net and nzzdev.atlassian.net.

These mail servers are often used alongside the mail servers inbound-smtp.us-west-2.amazonaws.com.

Host inbound-smtp.us-east-1.amazonaws.com resolves to five IP numbers: 3.211.210.226, 44.206.9.87, 44.210.166.32, 54.164.173.191 and 54.197.5.236.

devknows.com - robtex.com

devknows.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

Mail Servers

`devknows.com`

`com`