`u2chicago.com`

DNSSEC	⚠️ Not signed
A	3.167.112.69^{🇺🇸 Amazon3.167.112.0/21}
		PTR	`server-3-167-112-69.iad55.r.cloudfront.net`
A	3.167.112.73^{🇺🇸 Amazon3.167.112.0/21}
A	3.167.112.81^{🇺🇸 Amazon3.167.112.0/21}
A	3.167.112.106^{🇺🇸 Amazon3.167.112.0/21}
NS	`ns-707.awsdns-24.net` ⭐
		A	2600:9000:5302:c300::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-707.awsdns-24.net`
		A	205.251.194.195^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-707.awsdns-24.net`
NS	`ns-1048.awsdns-03.org`
		A	2600:9000:5304:1800::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1048.awsdns-03.org`
		A	205.251.196.24^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1048.awsdns-03.org`
NS	`ns-1798.awsdns-32.co.uk`
		A	2600:9000:5307:600::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1798.awsdns-32.co.uk`
		A	205.251.199.6^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1798.awsdns-32.co.uk`
NS	`ns-88.awsdns-11.com`
		A	2600:9000:5300:5800::1^{🇺🇸 Amazon2600:9000:5300::/48 - CloudFront}
			PTR	`ns-88.awsdns-11.com`
		A	205.251.192.88^{🇺🇸 Amazon205.251.192.0/24 prefix}
			PTR	`ns-88.awsdns-11.com`
SOA	`ns-707.awsdns-24.net`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=1771291435

Same first word

u2chicago.com

DNS History

40 records (8 active, 32 former)

●NSns-1048.awsdns-03.org2026-02-15 → 2026-03-21 · 3 obs

○ 2018-06-12 20:10:10
● 2026-02-15 11:59:06
● 2026-03-21 18:12:02

●NSns-1798.awsdns-32.co.uk2026-02-15 → 2026-03-21 · 3 obs

○ 2018-06-12 20:10:10
● 2026-02-15 11:59:06
● 2026-03-21 18:12:02

●NSns-707.awsdns-24.net2026-02-15 → 2026-03-21 · 3 obs

○ 2018-06-12 20:10:10
● 2026-02-15 11:59:06
● 2026-03-21 18:12:02

●NSns-88.awsdns-11.com2026-02-15 → 2026-03-21 · 3 obs

○ 2018-06-12 20:10:10
● 2026-02-15 11:59:06
● 2026-03-21 18:12:02

○NSns11.domaincontrol.com2018-06-12 → 2018-06-12 · 4 obs

○ 2016-01-24 20:17:02
● 2018-06-12 20:10:10
○ 2026-02-15 11:59:06
○ 2026-03-21 18:12:02

○NSns12.domaincontrol.com2018-06-12 → 2018-06-12 · 4 obs

○ 2016-01-24 20:17:02
● 2018-06-12 20:10:10
○ 2026-02-15 11:59:06
○ 2026-03-21 18:12:02

○NSns35.domaincontrol.com2015-07-05 → 2015-11-08 · 4 obs

● 2015-07-05 12:24:40
● 2015-11-08 16:11:30
○ 2016-01-24 20:17:02
○ 2026-03-21 18:12:02

○NSns36.domaincontrol.com2015-07-05 → 2015-11-08 · 4 obs

● 2015-07-05 12:24:40
● 2015-11-08 16:11:30
○ 2016-01-24 20:17:02
○ 2026-03-21 18:12:02

○MXmailstore1.secureserver.net2015-07-05 → 2015-11-08 · 4 obs

● 2015-07-05 12:24:40
● 2015-11-08 16:11:30
○ 2016-01-24 20:17:02
○ 2026-03-21 18:12:02

○MXsmtp.secureserver.net2015-07-05 → 2015-11-08 · 4 obs

● 2015-07-05 12:24:40
● 2015-11-08 16:11:30
○ 2016-01-24 20:17:02
○ 2026-03-21 18:12:02

○A13.33.109.1052026-03-08 → 2026-03-08 · 4 obs

○ 2026-03-08 17:55:58
● 2026-03-08 23:38:34
○ 2026-03-09 00:26:52
○ 2026-03-21 18:12:02

○A13.33.109.142026-03-08 → 2026-03-08 · 4 obs

○ 2026-03-08 17:55:58
● 2026-03-08 23:38:34
○ 2026-03-09 00:26:52
○ 2026-03-21 18:12:02

○A13.33.109.492026-03-08 → 2026-03-08 · 4 obs

○ 2026-03-08 17:55:58
● 2026-03-08 23:38:34
○ 2026-03-09 00:26:52
○ 2026-03-21 18:12:02

○A13.33.109.582026-03-08 → 2026-03-08 · 4 obs

○ 2026-03-08 17:55:58
● 2026-03-08 23:38:34
○ 2026-03-09 00:26:52
○ 2026-03-21 18:12:02

○A13.33.153.1232026-02-15 → 2026-03-21 · 123 obs

○ 2026-02-15 11:59:06
● 2026-02-15 14:41:50
● 2026-02-15 18:22:44
○ 2026-02-15 22:28:06
● 2026-02-16 00:01:26
● 2026-02-16 03:30:28
○ 2026-02-16 13:24:42
○ 2026-02-16 22:04:24
● 2026-02-17 23:31:24
○ 2026-02-18 01:13:56
○ 2026-02-18 14:19:18
● 2026-02-18 17:08:48
● 2026-02-19 18:11:30
○ 2026-02-19 20:06:20
○ 2026-02-20 14:03:42
● 2026-02-20 17:56:40
○ 2026-02-21 00:11:36
○ 2026-02-22 06:38:06
● 2026-02-22 09:39:52
○ 2026-02-22 14:58:38
● 2026-02-23 04:13:18
○ 2026-02-23 17:53:08
○ 2026-02-25 06:44:12
● 2026-02-25 09:19:18
○ 2026-02-25 11:23:36
○ 2026-02-26 18:54:08
● 2026-02-26 21:35:18
○ 2026-02-26 23:08:44
○ 2026-02-27 09:00:00
● 2026-02-27 13:11:02
○ 2026-02-28 00:15:26
● 2026-02-28 02:12:04
● 2026-03-01 04:50:16
○ 2026-03-01 05:36:34
● 2026-03-01 13:06:28
○ 2026-03-01 14:23:20
○ 2026-03-02 05:58:24
● 2026-03-02 12:33:50
○ 2026-03-02 13:52:12
○ 2026-03-02 16:07:56
● 2026-03-02 23:34:52
○ 2026-03-03 01:17:30
● 2026-03-03 09:24:18
○ 2026-03-03 11:45:16
● 2026-03-03 20:59:24
● 2026-03-04 02:03:36
○ 2026-03-04 07:24:20
○ 2026-03-05 00:12:24
● 2026-03-05 03:32:40
○ 2026-03-05 05:17:44
● 2026-03-05 06:22:42
○ 2026-03-05 10:33:34
● 2026-03-05 18:13:28
○ 2026-03-05 19:51:48
● 2026-03-06 13:58:40
○ 2026-03-06 17:49:36
○ 2026-03-07 01:19:24
● 2026-03-07 03:45:28
● 2026-03-07 13:10:40
○ 2026-03-08 17:55:58
○ 2026-03-08 23:38:34
● 2026-03-09 00:26:52
● 2026-03-09 02:56:12
○ 2026-03-09 08:55:12
○ 2026-03-10 00:13:54
● 2026-03-10 02:40:46
○ 2026-03-10 06:23:22
● 2026-03-10 07:19:52
● 2026-03-11 18:45:24
○ 2026-03-12 00:14:14
● 2026-03-12 07:03:46
○ 2026-03-12 14:17:44
○ 2026-03-12 15:25:26
● 2026-03-12 16:58:46
● 2026-03-13 10:12:52
○ 2026-03-13 11:11:38
○ 2026-03-13 13:01:38
● 2026-03-13 17:32:40
○ 2026-03-14 00:10:16
○ 2026-03-14 02:28:50
● 2026-03-14 06:45:14
○ 2026-03-14 10:02:18
○ 2026-03-14 14:46:58
● 2026-03-14 16:31:40
● 2026-03-14 20:14:44
○ 2026-03-14 23:30:12
○ 2026-03-15 00:11:00
● 2026-03-15 02:23:38
● 2026-03-15 03:21:20
○ 2026-03-15 04:44:28
● 2026-03-15 06:08:22
● 2026-03-15 06:46:06
○ 2026-03-15 08:04:02
● 2026-03-15 08:46:40
○ 2026-03-15 11:08:34
○ 2026-03-15 20:20:06
● 2026-03-16 01:09:22
○ 2026-03-16 02:42:44
● 2026-03-16 11:17:18
○ 2026-03-16 14:21:38
○ 2026-03-16 16:44:12
● 2026-03-16 19:12:34
○ 2026-03-17 00:12:02
● 2026-03-17 04:30:38
○ 2026-03-17 05:21:16
○ 2026-03-17 13:53:46
● 2026-03-17 16:00:06
● 2026-03-18 02:29:40
○ 2026-03-18 03:45:36
● 2026-03-18 10:09:32
○ 2026-03-18 12:18:10
○ 2026-03-18 21:53:24
● 2026-03-19 01:19:36
● 2026-03-19 06:47:58
○ 2026-03-19 09:31:14
● 2026-03-19 16:21:52
● 2026-03-20 02:58:04
○ 2026-03-20 04:20:26
○ 2026-03-20 11:18:54
● 2026-03-20 17:26:38
● 2026-03-21 08:28:06
○ 2026-03-21 18:11:58
○ 2026-03-21 18:12:02

○A13.33.153.142026-02-15 → 2026-03-21 · 123 obs

○A13.33.153.362026-02-15 → 2026-03-21 · 123 obs

○A13.33.153.742026-02-15 → 2026-03-21 · 123 obs

○A184.168.221.192018-06-12 → 2018-06-12 · 4 obs

○ 2016-01-24 20:17:02
● 2018-06-12 20:10:10
○ 2026-02-15 11:59:06
○ 2026-03-21 18:12:02

○A184.168.221.202018-06-12 → 2018-06-12 · 4 obs

○ 2016-01-24 20:17:02
● 2018-06-12 20:10:10
○ 2026-02-15 11:59:06
○ 2026-03-21 18:12:02

○A184.168.221.252018-06-12 → 2018-06-12 · 4 obs

○ 2016-01-24 20:17:02
● 2018-06-12 20:10:10
○ 2026-02-15 11:59:06
○ 2026-03-21 18:12:02

○A184.168.221.312018-06-12 → 2018-06-12 · 4 obs

○ 2016-01-24 20:17:02
● 2018-06-12 20:10:10
○ 2026-02-15 11:59:06
○ 2026-03-21 18:12:02

○A198.71.174.1832015-07-05 → 2015-11-08 · 4 obs

● 2015-07-05 12:24:40
● 2015-11-08 16:11:30
○ 2016-01-24 20:17:02
○ 2026-03-21 18:12:02

○A216.137.39.1032026-02-15 → 2026-03-20 · 120 obs

○ 2026-02-15 11:59:06
○ 2026-02-15 18:22:44
● 2026-02-15 22:28:06
○ 2026-02-16 00:01:26
○ 2026-02-16 03:30:28
● 2026-02-16 13:24:42
○ 2026-02-16 22:04:24
○ 2026-02-17 23:31:24
● 2026-02-18 01:13:56
● 2026-02-18 03:46:40
○ 2026-02-18 08:58:56
● 2026-02-18 14:19:18
○ 2026-02-18 17:08:48
○ 2026-02-20 11:12:38
● 2026-02-20 14:03:42
○ 2026-02-20 17:56:40
○ 2026-02-21 00:11:36
● 2026-02-21 06:46:32
● 2026-02-22 06:38:06
○ 2026-02-22 09:39:52
● 2026-02-22 14:58:38
○ 2026-02-23 04:13:18
● 2026-02-23 17:53:08
○ 2026-02-24 00:11:24
● 2026-02-24 03:37:30
● 2026-02-24 13:55:30
○ 2026-02-25 03:51:20
● 2026-02-25 06:44:12
○ 2026-02-25 09:19:18
● 2026-02-25 11:23:36
● 2026-02-25 13:12:08
○ 2026-02-25 17:24:46
● 2026-02-26 01:21:20
● 2026-02-26 18:54:08
○ 2026-02-26 21:35:18
● 2026-02-26 23:08:44
○ 2026-02-27 00:17:40
○ 2026-02-27 07:38:32
● 2026-02-27 09:00:00
○ 2026-02-27 13:11:02
○ 2026-03-01 04:50:16
● 2026-03-01 05:36:34
○ 2026-03-01 13:06:28
● 2026-03-01 14:23:20
● 2026-03-02 05:58:24
○ 2026-03-02 12:33:50
● 2026-03-02 13:52:12
● 2026-03-02 16:07:56
○ 2026-03-02 23:34:52
● 2026-03-03 01:17:30
○ 2026-03-03 09:24:18
● 2026-03-03 11:45:16
○ 2026-03-03 20:59:24
○ 2026-03-05 03:32:40
● 2026-03-05 05:17:44
○ 2026-03-05 06:22:42
● 2026-03-05 10:33:34
○ 2026-03-05 18:13:28
● 2026-03-05 19:51:48
○ 2026-03-06 13:58:40
● 2026-03-06 17:49:36
● 2026-03-07 00:13:00
○ 2026-03-07 01:19:24
○ 2026-03-09 02:56:12
● 2026-03-09 08:55:12
● 2026-03-09 15:23:02
○ 2026-03-10 00:13:54
○ 2026-03-10 02:40:46
● 2026-03-10 06:23:22
○ 2026-03-10 07:19:52
○ 2026-03-12 14:17:44
● 2026-03-12 15:25:26
○ 2026-03-12 16:58:46
○ 2026-03-13 10:12:52
● 2026-03-13 11:11:38
● 2026-03-13 13:01:38
○ 2026-03-13 17:32:40
○ 2026-03-14 00:10:16
● 2026-03-14 02:28:50
○ 2026-03-14 06:45:14
● 2026-03-14 10:02:18
● 2026-03-14 14:46:58
○ 2026-03-14 16:31:40
○ 2026-03-14 20:14:44
● 2026-03-14 23:30:12
○ 2026-03-15 00:11:00
○ 2026-03-15 03:21:20
● 2026-03-15 04:44:28
○ 2026-03-15 06:08:22
○ 2026-03-15 06:46:06
● 2026-03-15 08:04:02
○ 2026-03-15 08:46:40
● 2026-03-15 11:08:34
● 2026-03-15 20:20:06
○ 2026-03-16 01:09:22
● 2026-03-16 02:42:44
○ 2026-03-16 11:17:18
● 2026-03-16 14:21:38
● 2026-03-16 16:44:12
○ 2026-03-16 19:12:34
○ 2026-03-17 04:30:38
● 2026-03-17 05:21:16
● 2026-03-17 07:32:52
○ 2026-03-17 09:34:42
● 2026-03-17 11:27:06
○ 2026-03-17 13:53:46
○ 2026-03-18 02:29:40
● 2026-03-18 03:45:36
○ 2026-03-18 10:09:32
○ 2026-03-18 15:52:26
● 2026-03-18 21:53:24
○ 2026-03-19 01:19:36
○ 2026-03-19 06:47:58
● 2026-03-19 09:31:14
○ 2026-03-19 16:21:52
○ 2026-03-20 02:58:04
● 2026-03-20 04:20:26
● 2026-03-20 07:54:44
○ 2026-03-20 11:18:54
○ 2026-03-21 18:12:02

○A216.137.39.212026-02-15 → 2026-03-20 · 120 obs

○A216.137.39.232026-02-15 → 2026-03-20 · 120 obs

○A216.137.39.522026-02-15 → 2026-03-20 · 120 obs

●A3.167.112.1062026-02-15 → 2026-03-21 · 71 obs

○ 2018-06-12 20:10:10
● 2026-02-15 11:59:06
○ 2026-02-15 14:41:50
○ 2026-02-16 13:24:42
● 2026-02-16 22:04:24
○ 2026-02-17 23:31:24
○ 2026-02-18 03:46:40
● 2026-02-18 08:58:56
○ 2026-02-18 14:19:18
○ 2026-02-19 18:11:30
● 2026-02-19 20:06:20
● 2026-02-20 11:12:38
○ 2026-02-20 14:03:42
○ 2026-02-20 17:56:40
● 2026-02-21 00:11:36
○ 2026-02-21 06:46:32
○ 2026-02-23 17:53:08
● 2026-02-24 00:11:24
○ 2026-02-24 03:37:30
○ 2026-02-24 13:55:30
● 2026-02-25 03:51:20
○ 2026-02-25 06:44:12
○ 2026-02-25 13:12:08
● 2026-02-25 17:24:46
○ 2026-02-26 01:21:20
○ 2026-02-26 23:08:44
● 2026-02-27 00:17:40
● 2026-02-27 07:38:32
○ 2026-02-27 09:00:00
○ 2026-02-27 13:11:02
● 2026-02-28 00:15:26
○ 2026-02-28 02:12:04
○ 2026-03-04 02:03:36
● 2026-03-04 07:24:20
● 2026-03-05 00:12:24
○ 2026-03-05 03:32:40
○ 2026-03-07 00:13:00
● 2026-03-07 01:19:24
○ 2026-03-07 03:45:28
○ 2026-03-09 15:23:02
● 2026-03-10 00:13:54
○ 2026-03-10 02:40:46
○ 2026-03-11 18:45:24
● 2026-03-12 00:14:14
○ 2026-03-12 07:03:46
● 2026-03-12 14:17:44
○ 2026-03-12 15:25:26
○ 2026-03-13 17:32:40
● 2026-03-14 00:10:16
○ 2026-03-14 02:28:50
○ 2026-03-14 23:30:12
● 2026-03-15 00:11:00
○ 2026-03-15 02:23:38
○ 2026-03-16 19:12:34
● 2026-03-17 00:12:02
○ 2026-03-17 04:30:38
○ 2026-03-17 07:32:52
● 2026-03-17 09:34:42
○ 2026-03-17 11:27:06
● 2026-03-17 13:53:46
○ 2026-03-17 16:00:06
○ 2026-03-18 10:09:32
● 2026-03-18 12:18:10
● 2026-03-18 15:52:26
○ 2026-03-18 21:53:24
○ 2026-03-20 07:54:44
● 2026-03-20 11:18:54
○ 2026-03-20 17:26:38
○ 2026-03-21 08:28:06
● 2026-03-21 18:11:58
● 2026-03-21 18:12:02

●A3.167.112.692026-02-15 → 2026-03-21 · 71 obs

●A3.167.112.732026-02-15 → 2026-03-21 · 71 obs

●A3.167.112.812026-02-15 → 2026-03-21 · 71 obs

○A3.168.102.282026-03-08 → 2026-03-08 · 4 obs

○ 2026-03-07 13:10:40
● 2026-03-08 17:55:58
○ 2026-03-08 23:38:34
○ 2026-03-21 18:12:02

○A3.168.102.422026-03-08 → 2026-03-08 · 4 obs

○ 2026-03-07 13:10:40
● 2026-03-08 17:55:58
○ 2026-03-08 23:38:34
○ 2026-03-21 18:12:02

○A3.168.102.672026-03-08 → 2026-03-08 · 4 obs

○ 2026-03-07 13:10:40
● 2026-03-08 17:55:58
○ 2026-03-08 23:38:34
○ 2026-03-21 18:12:02

○A3.168.102.842026-03-08 → 2026-03-08 · 4 obs

○ 2026-03-07 13:10:40
● 2026-03-08 17:55:58
○ 2026-03-08 23:38:34
○ 2026-03-21 18:12:02

○A50.63.202.102018-06-12 → 2018-06-12 · 4 obs

○ 2016-01-24 20:17:02
● 2018-06-12 20:10:10
○ 2026-02-15 11:59:06
○ 2026-03-21 18:12:02

○A50.63.202.122018-06-12 → 2018-06-12 · 4 obs

○ 2016-01-24 20:17:02
● 2018-06-12 20:10:10
○ 2026-02-15 11:59:06
○ 2026-03-21 18:12:02

○A50.63.202.202018-06-12 → 2018-06-12 · 4 obs

○ 2016-01-24 20:17:02
● 2018-06-12 20:10:10
○ 2026-02-15 11:59:06
○ 2026-03-21 18:12:02

○A50.63.202.262018-06-12 → 2018-06-12 · 4 obs

○ 2016-01-24 20:17:02
● 2018-06-12 20:10:10
○ 2026-02-15 11:59:06
○ 2026-03-21 18:12:02

○A50.63.202.32018-06-12 → 2018-06-12 · 4 obs

○ 2016-01-24 20:17:02
● 2018-06-12 20:10:10
○ 2026-02-15 11:59:06
○ 2026-03-21 18:12:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	b.gtld-servers.net, i.gtld-servers.net, k.gtld-servers.net, a.gtld-servers.net...	-
u2chicago.com	ns-88.awsdns-11.com, ns-707.awsdns-24.net, ns-1798.awsdns-32.co.uk, ns-1048.awsdns-03.org	1 record

✅ Authoritative Response

Server: 205.251.196.24

NS records: ns-88.awsdns-11.com, ns-707.awsdns-24.net, ns-1798.awsdns-32.co.uk, ns-1048.awsdns-03.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for u2chicago.com (unsigned zone)

⏱️ Timing

Total: 774ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`3.167.112.69, 3.167.112.81...`
NS	4	`ns-1048.awsdns-03.org, ns-1798.awsdns-32.co.uk...`
SOA	1	`ns-707.awsdns-24.net awsdns-hostmaster.a`

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns-88.awsdns-11.com)

Analysis

IP Addresses

u2chicago.com points to four IP numbers: 3.167.112.69, 3.167.112.73, 3.167.112.81 and 3.167.112.106.

Other host names, for instance shiftplatform.io, d10dtt4lsdmx0c.cloudfront.net, adconnection.co.kr, www.durubon-optics.com and vegandale.com share IP numbers with u2chicago.com.

Name Servers

u2chicago.com is delegated to four name servers: ns-88.awsdns-11.com, ns-707.awsdns-24.net, ns-1048.awsdns-03.org and ns-1798.awsdns-32.co.uk.

u2chicago.com at least partially shares its name servers with other domains, for instance dvaragold.in, steffengolz.de, d2538ggaoe6cji.cloudfront.net, d18iymmap3iq1l.cloudfront.net and encartesgenmills.com.br.

Host names with two IPs: ns-88.awsdns-11.com points to 2600:9000:5300:5800::1 and 205.251.192.88; ns-707.awsdns-24.net points to 2600:9000:5302:c300::1 and 205.251.194.195; ns-1048.awsdns-03.org points to 2600:9000:5304:1800::1 and 205.251.196.24; ns-1798.awsdns-32.co.uk points to 2600:9000:5307:600::1 and 205.251.199.6.

u2chicago.com - robtex.com

u2chicago.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

`u2chicago.com`

`com`