`cohst.app`

DNSSEC	⚠️ Not signed
A	3.167.99.4^{🇺🇸 Amazon3.167.96.0/21}
		PTR	`server-3-167-99-4.iad55.r.cloudfront.net`
A	3.167.99.33^{🇺🇸 Amazon3.167.96.0/21}
A	3.167.99.51^{🇺🇸 Amazon3.167.96.0/21}
A	3.167.99.78^{🇺🇸 Amazon3.167.96.0/21}
NS	`ns-1439.awsdns-51.org` ⭐
		A	2600:9000:5305:9f00::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1439.awsdns-51.org`
		A	205.251.197.159^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1439.awsdns-51.org`
NS	`ns-1922.awsdns-48.co.uk`
		A	2600:9000:5307:8200::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1922.awsdns-48.co.uk`
		A	205.251.199.130^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1922.awsdns-48.co.uk`
NS	`ns-494.awsdns-61.com`
		A	2600:9000:5301:ee00::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-494.awsdns-61.com`
		A	205.251.193.238^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-494.awsdns-61.com`
NS	`ns-542.awsdns-03.net`
		A	2600:9000:5302:1e00::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-542.awsdns-03.net`
		A	205.251.194.30^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-542.awsdns-03.net`
SOA	`ns-1439.awsdns-51.org`awsdns-hostmaster@amazon.com serial=1

`app`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns-tld1.charlestonroadregistry.com` ⭐
	NS	`ns-tld2.charlestonroadregistry.com`
	NS	`ns-tld3.charlestonroadregistry.com`
	NS	`ns-tld4.charlestonroadregistry.com`
	NS	`ns-tld5.charlestonroadregistry.com`
	SOA	`ns-tld1.charlestonroadregistry.com`cloud-dns-hostmaster@google.com serial=101427

📈 Tranco rank: #528,358
🔒 HSTS Preload (+subdomains)

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DNS History

36 records (8 active, 28 former)

●NSns-1439.awsdns-51.org2026-02-18 → 2026-03-25 · 2 obs

● 2026-02-18 17:52:46
● 2026-03-25 21:54:26

●NSns-1922.awsdns-48.co.uk2026-02-18 → 2026-03-25 · 2 obs

● 2026-02-18 17:52:46
● 2026-03-25 21:54:26

●NSns-494.awsdns-61.com2026-02-18 → 2026-03-25 · 2 obs

● 2026-02-18 17:52:46
● 2026-03-25 21:54:26

●NSns-542.awsdns-03.net2026-02-18 → 2026-03-25 · 2 obs

● 2026-02-18 17:52:46
● 2026-03-25 21:54:26

○A13.33.235.1012026-03-24 → 2026-03-25 · 15 obs

○ 2026-03-24 12:34:36
● 2026-03-24 14:51:24
○ 2026-03-24 15:48:38
● 2026-03-24 21:02:36
○ 2026-03-24 21:46:10
● 2026-03-25 00:11:04
○ 2026-03-25 01:05:02
○ 2026-03-25 05:53:58
● 2026-03-25 06:38:02
○ 2026-03-25 10:36:04
● 2026-03-25 11:49:12
○ 2026-03-25 17:57:34
● 2026-03-25 18:37:16
○ 2026-03-25 19:17:04
○ 2026-03-25 21:54:26

○A13.33.235.322026-03-24 → 2026-03-25 · 15 obs

○A13.33.235.412026-03-24 → 2026-03-25 · 15 obs

○A13.33.235.852026-03-24 → 2026-03-25 · 15 obs

○A13.35.107.1122026-03-09 → 2026-03-09 · 4 obs

○ 2026-03-08 23:05:22
● 2026-03-09 01:09:42
○ 2026-03-09 02:59:44
○ 2026-03-25 21:54:26

○A13.35.107.1272026-03-09 → 2026-03-09 · 4 obs

○ 2026-03-08 23:05:22
● 2026-03-09 01:09:42
○ 2026-03-09 02:59:44
○ 2026-03-25 21:54:26

○A13.35.107.782026-03-09 → 2026-03-09 · 4 obs

○ 2026-03-08 23:05:22
● 2026-03-09 01:09:42
○ 2026-03-09 02:59:44
○ 2026-03-25 21:54:26

○A13.35.107.912026-03-09 → 2026-03-09 · 4 obs

○ 2026-03-08 23:05:22
● 2026-03-09 01:09:42
○ 2026-03-09 02:59:44
○ 2026-03-25 21:54:26

○A18.154.144.1282026-02-22 → 2026-03-22 · 80 obs

○ 2026-02-22 01:23:40
● 2026-02-22 11:10:14
● 2026-02-22 12:32:38
○ 2026-02-22 20:26:24
○ 2026-02-23 05:07:34
● 2026-02-23 19:05:32
○ 2026-02-23 20:19:24
● 2026-02-24 07:59:32
○ 2026-02-24 09:03:48
● 2026-02-24 10:27:52
○ 2026-02-24 13:08:26
○ 2026-02-25 01:23:38
● 2026-02-25 04:58:20
● 2026-02-25 05:59:34
○ 2026-02-25 12:40:36
○ 2026-02-26 05:17:48
● 2026-02-26 08:14:32
○ 2026-02-26 10:09:46
○ 2026-02-27 01:26:40
● 2026-02-27 15:52:06
○ 2026-02-28 02:05:10
● 2026-02-28 04:31:34
○ 2026-02-28 05:20:50
○ 2026-02-28 18:14:44
● 2026-03-01 00:43:42
○ 2026-03-01 01:28:54
● 2026-03-01 10:46:28
○ 2026-03-01 11:56:56
● 2026-03-01 14:23:38
○ 2026-03-02 01:21:58
○ 2026-03-06 07:56:18
● 2026-03-06 11:57:54
● 2026-03-06 15:12:00
○ 2026-03-07 00:22:28
○ 2026-03-07 05:59:24
● 2026-03-07 08:15:22
○ 2026-03-07 09:51:10
○ 2026-03-08 01:56:18
● 2026-03-08 04:26:20
○ 2026-03-08 06:12:18
● 2026-03-08 16:03:40
○ 2026-03-08 23:05:22
○ 2026-03-09 03:47:14
● 2026-03-09 05:17:06
● 2026-03-09 05:49:12
○ 2026-03-09 07:38:14
● 2026-03-09 09:47:40
○ 2026-03-09 13:51:06
○ 2026-03-10 18:47:48
● 2026-03-10 19:51:54
○ 2026-03-10 21:20:10
○ 2026-03-11 07:15:04
● 2026-03-11 08:29:02
○ 2026-03-11 09:51:16
○ 2026-03-12 04:00:42
● 2026-03-12 06:27:18
○ 2026-03-12 07:12:36
○ 2026-03-13 11:53:40
● 2026-03-13 19:09:42
○ 2026-03-13 20:42:54
○ 2026-03-14 13:18:20
● 2026-03-14 13:52:04
○ 2026-03-14 14:46:40
○ 2026-03-14 15:34:40
● 2026-03-14 18:47:34
● 2026-03-14 19:51:48
○ 2026-03-14 20:36:18
○ 2026-03-15 06:13:20
● 2026-03-15 09:56:22
○ 2026-03-15 13:39:32
○ 2026-03-16 04:12:04
● 2026-03-16 06:06:46
○ 2026-03-16 08:29:50
○ 2026-03-18 19:20:14
● 2026-03-19 06:23:22
○ 2026-03-19 07:44:50
○ 2026-03-22 01:49:56
● 2026-03-22 04:27:50
○ 2026-03-22 07:58:22
○ 2026-03-25 21:54:26

○A18.154.144.132026-02-22 → 2026-03-22 · 80 obs

○A18.154.144.332026-02-22 → 2026-03-22 · 80 obs

○A18.154.144.502026-02-22 → 2026-03-22 · 80 obs

○A18.165.242.1172026-02-20 → 2026-03-25 · 143 obs

○ 2026-02-20 11:02:00
● 2026-02-20 18:51:24
● 2026-02-20 20:28:24
○ 2026-02-21 00:11:58
● 2026-02-21 01:21:48
○ 2026-02-21 11:11:38
● 2026-02-21 11:43:00
○ 2026-02-21 13:35:06
● 2026-02-21 14:26:20
○ 2026-02-21 15:00:56
○ 2026-02-21 16:17:52
● 2026-02-21 23:08:04
○ 2026-02-21 23:43:48
● 2026-02-22 01:23:40
○ 2026-02-22 11:10:14
○ 2026-02-22 12:32:38
● 2026-02-22 20:26:24
● 2026-02-23 05:07:34
○ 2026-02-23 19:05:32
● 2026-02-23 20:19:24
○ 2026-02-24 07:59:32
● 2026-02-24 09:03:48
○ 2026-02-24 10:27:52
○ 2026-02-25 00:12:22
● 2026-02-25 01:23:38
○ 2026-02-25 04:58:20
○ 2026-02-25 05:59:34
● 2026-02-25 12:40:36
○ 2026-02-26 03:17:10
● 2026-02-26 05:17:48
○ 2026-02-26 08:14:32
● 2026-02-26 10:09:46
● 2026-02-27 01:26:40
○ 2026-02-27 15:52:06
○ 2026-02-28 04:31:34
● 2026-02-28 05:20:50
● 2026-02-28 11:00:16
○ 2026-02-28 18:14:44
○ 2026-03-01 10:46:28
● 2026-03-01 11:56:56
○ 2026-03-01 14:23:38
● 2026-03-02 01:21:58
● 2026-03-02 22:47:26
○ 2026-03-03 00:37:30
○ 2026-03-03 01:39:32
● 2026-03-03 12:17:56
● 2026-03-04 14:55:02
○ 2026-03-04 16:46:46
● 2026-03-04 19:23:34
○ 2026-03-04 20:20:38
○ 2026-03-05 00:38:38
● 2026-03-05 01:25:24
● 2026-03-06 07:56:18
○ 2026-03-06 11:57:54
○ 2026-03-06 15:12:00
● 2026-03-07 00:22:28
● 2026-03-07 02:02:56
○ 2026-03-07 04:59:36
● 2026-03-07 05:59:24
○ 2026-03-07 08:15:22
● 2026-03-07 09:51:10
○ 2026-03-07 11:29:48
● 2026-03-07 20:55:36
○ 2026-03-07 23:09:00
● 2026-03-08 01:56:18
○ 2026-03-08 04:26:20
● 2026-03-08 06:12:18
○ 2026-03-08 16:03:40
● 2026-03-08 23:05:22
○ 2026-03-09 01:09:42
● 2026-03-09 02:59:44
● 2026-03-09 03:47:14
○ 2026-03-09 05:17:06
○ 2026-03-09 05:49:12
● 2026-03-09 07:38:14
○ 2026-03-09 09:47:40
● 2026-03-09 13:51:06
○ 2026-03-09 19:04:56
● 2026-03-09 19:50:36
● 2026-03-10 08:23:22
○ 2026-03-10 18:47:48
○ 2026-03-10 19:51:54
● 2026-03-10 21:20:10
● 2026-03-10 23:14:42
○ 2026-03-11 00:13:00
● 2026-03-11 04:34:34
● 2026-03-11 07:15:04
○ 2026-03-11 08:29:02
● 2026-03-11 09:51:16
● 2026-03-12 04:00:42
○ 2026-03-12 06:27:18
● 2026-03-12 07:12:36
● 2026-03-13 11:53:40
○ 2026-03-13 19:09:42
○ 2026-03-14 00:18:58
● 2026-03-14 01:01:42
● 2026-03-14 13:18:20
○ 2026-03-14 13:52:04
○ 2026-03-14 14:46:40
● 2026-03-14 15:34:40
○ 2026-03-14 18:47:34
○ 2026-03-14 20:36:18
● 2026-03-15 02:21:32
○ 2026-03-15 06:13:20
○ 2026-03-15 09:56:22
● 2026-03-15 13:39:32
● 2026-03-16 04:12:04
○ 2026-03-16 06:06:46
○ 2026-03-16 11:01:38
● 2026-03-16 11:52:18
● 2026-03-18 19:20:14
○ 2026-03-19 06:23:22
● 2026-03-19 07:44:50
● 2026-03-20 13:16:32
○ 2026-03-20 14:33:22
○ 2026-03-20 16:47:46
● 2026-03-20 21:11:58
● 2026-03-21 10:00:52
○ 2026-03-21 11:55:10
○ 2026-03-21 15:30:02
● 2026-03-21 22:30:14
○ 2026-03-22 01:05:14
● 2026-03-22 01:49:56
○ 2026-03-22 04:27:50
● 2026-03-22 07:58:22
● 2026-03-22 09:17:52
○ 2026-03-22 11:08:16
○ 2026-03-22 15:31:34
● 2026-03-22 18:58:16
● 2026-03-24 12:34:36
○ 2026-03-24 14:51:24
● 2026-03-24 15:48:38
○ 2026-03-24 21:02:36
● 2026-03-24 21:46:10
○ 2026-03-25 00:11:04
● 2026-03-25 01:05:02
● 2026-03-25 05:53:58
○ 2026-03-25 06:38:02
○ 2026-03-25 11:49:12
● 2026-03-25 17:57:34
○ 2026-03-25 18:37:16
● 2026-03-25 19:17:04
○ 2026-03-25 21:54:26

○A18.165.242.1252026-02-20 → 2026-03-25 · 143 obs

○A18.165.242.352026-02-20 → 2026-03-25 · 143 obs

○A18.165.242.472026-02-20 → 2026-03-25 · 143 obs

○A18.172.89.1262026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-22 09:17:52
● 2026-03-22 11:08:16
○ 2026-03-22 15:31:34
○ 2026-03-25 21:54:26

○A18.172.89.342026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-22 09:17:52
● 2026-03-22 11:08:16
○ 2026-03-22 15:31:34
○ 2026-03-25 21:54:26

○A18.172.89.712026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-22 09:17:52
● 2026-03-22 11:08:16
○ 2026-03-22 15:31:34
○ 2026-03-25 21:54:26

○A18.172.89.862026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-22 09:17:52
● 2026-03-22 11:08:16
○ 2026-03-22 15:31:34
○ 2026-03-25 21:54:26

○A18.173.132.262026-03-07 → 2026-03-22 · 10 obs

○ 2026-03-07 20:55:36
● 2026-03-07 23:09:00
○ 2026-03-08 01:56:18
○ 2026-03-14 13:52:04
● 2026-03-14 14:46:40
○ 2026-03-14 15:34:40
○ 2026-03-22 11:08:16
● 2026-03-22 15:31:34
○ 2026-03-22 18:58:16
○ 2026-03-25 21:54:26

○A18.173.132.622026-03-07 → 2026-03-22 · 10 obs

○A18.173.132.82026-03-07 → 2026-03-22 · 10 obs

○A18.173.132.922026-03-07 → 2026-03-22 · 10 obs

●A3.167.99.332026-02-18 → 2026-03-25 · 81 obs

● 2026-02-18 17:52:46
● 2026-02-20 11:02:00
○ 2026-02-20 18:51:24
○ 2026-02-20 20:28:24
● 2026-02-21 00:11:58
○ 2026-02-21 01:21:48
● 2026-02-21 11:11:38
○ 2026-02-21 11:43:00
● 2026-02-21 13:35:06
○ 2026-02-21 14:26:20
● 2026-02-21 15:00:56
● 2026-02-21 16:17:52
○ 2026-02-21 23:08:04
● 2026-02-21 23:43:48
○ 2026-02-22 01:23:40
○ 2026-02-24 10:27:52
● 2026-02-24 13:08:26
● 2026-02-25 00:12:22
○ 2026-02-25 01:23:38
○ 2026-02-25 12:40:36
● 2026-02-26 03:17:10
○ 2026-02-26 05:17:48
○ 2026-02-27 15:52:06
● 2026-02-28 02:05:10
○ 2026-02-28 04:31:34
○ 2026-02-28 11:00:16
● 2026-02-28 18:14:44
○ 2026-03-01 00:43:42
● 2026-03-01 01:28:54
○ 2026-03-01 10:46:28
○ 2026-03-02 22:47:26
● 2026-03-03 00:37:30
● 2026-03-03 01:39:32
○ 2026-03-03 12:17:56
○ 2026-03-04 14:55:02
● 2026-03-04 16:46:46
○ 2026-03-04 19:23:34
● 2026-03-04 20:20:38
● 2026-03-05 00:38:38
○ 2026-03-05 01:25:24
○ 2026-03-07 02:02:56
● 2026-03-07 04:59:36
○ 2026-03-07 05:59:24
○ 2026-03-07 09:51:10
● 2026-03-07 11:29:48
○ 2026-03-07 20:55:36
○ 2026-03-09 13:51:06
● 2026-03-09 19:04:56
○ 2026-03-09 19:50:36
○ 2026-03-10 08:23:22
● 2026-03-10 18:47:48
○ 2026-03-10 19:51:54
○ 2026-03-10 23:14:42
● 2026-03-11 00:13:00
○ 2026-03-11 04:34:34
○ 2026-03-13 19:09:42
● 2026-03-13 20:42:54
● 2026-03-14 00:18:58
○ 2026-03-14 01:01:42
○ 2026-03-14 19:51:48
● 2026-03-14 20:36:18
○ 2026-03-15 02:21:32
● 2026-03-15 06:13:20
○ 2026-03-15 09:56:22
○ 2026-03-16 06:06:46
● 2026-03-16 08:29:50
● 2026-03-16 11:01:38
○ 2026-03-16 11:52:18
○ 2026-03-20 13:16:32
● 2026-03-20 14:33:22
● 2026-03-20 16:47:46
○ 2026-03-20 21:11:58
○ 2026-03-21 10:00:52
● 2026-03-21 11:55:10
● 2026-03-21 15:30:02
○ 2026-03-21 22:30:14
○ 2026-03-25 06:38:02
● 2026-03-25 10:36:04
○ 2026-03-25 11:49:12
○ 2026-03-25 19:17:04
● 2026-03-25 21:54:26

●A3.167.99.42026-02-18 → 2026-03-25 · 81 obs

●A3.167.99.512026-02-18 → 2026-03-25 · 81 obs

●A3.167.99.782026-02-18 → 2026-03-25 · 81 obs

○A54.230.114.272026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-21 22:30:14
● 2026-03-22 01:05:14
○ 2026-03-22 01:49:56
○ 2026-03-25 21:54:26

○A54.230.114.452026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-21 22:30:14
● 2026-03-22 01:05:14
○ 2026-03-22 01:49:56
○ 2026-03-25 21:54:26

○A54.230.114.752026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-21 22:30:14
● 2026-03-22 01:05:14
○ 2026-03-22 01:49:56
○ 2026-03-25 21:54:26

○A54.230.114.902026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-21 22:30:14
● 2026-03-22 01:05:14
○ 2026-03-22 01:49:56
○ 2026-03-25 21:54:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
app	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
cohst.app	ns-494.awsdns-61.com, ns-542.awsdns-03.net, ns-1439.awsdns-51.org, ns-1922.awsdns-48.co.uk	-

✅ Authoritative Response

Server:205.251.199.130

NS records: ns-494.awsdns-61.com, ns-542.awsdns-03.net, ns-1439.awsdns-51.org, ns-1922.awsdns-48.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cohst.app (unsigned zone)

⏱️ Timing

Total: 2051ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`3.167.99.51, 3.167.99.33...`
NS	4	`ns-1439.awsdns-51.org, ns-1922.awsdns-48.co.uk...`
SOA	1	`ns-1439.awsdns-51.org awsdns-hostmaster.`

Analysis

IP Addresses

cohst.app maps to four IP numbers: 3.167.99.4, 3.167.99.33, 3.167.99.51 and 3.167.99.78.

other host names include paper-shape.com, testweb.rewaatech.com, na.beta.aistudio.amazon, www.halfclub.com and d3n74dwe4ow3qy.cloudfront.net; they share IP numbers with cohst.app.

Name Servers

cohst.app delegates to four name servers: ns-494.awsdns-61.com, ns-542.awsdns-03.net, ns-1439.awsdns-51.org and ns-1922.awsdns-48.co.uk.

cohst.app at least partially shares name servers with other domains, for instance lugofftoyota.com, trackingtime.mobi, d2tmmrc74cuc1.cloudfront.net, globalcontestation.io and brightonbulldogathletics.net.

These name servers are commonly used with the following: ns1-24-ap-southeast-3.ec2-rdns.amazonaws.com, ns2-24-ap-southeast-3.ec2-rdns.amazonaws.com, ns3-24-ap-southeast-3.ec2-rdns.amazonaws.com and ns4-24-ap-southeast-3.ec2-rdns.amazonaws.com.

Host names with two IP numbers: ns-494.awsdns-61.com points to 2600:9000:5301:ee00::1 and 205.251.193.238; ns-542.awsdns-03.net points to 2600:9000:5302:1e00::1 and 205.251.194.30; ns-1439.awsdns-51.org points to 2600:9000:5305:9f00::1 and 205.251.197.159; ns-1922.awsdns-48.co.uk points to 2600:9000:5307:8200::1 and 205.251.199.130.

cohst.app - robtex.com

cohst.app

app

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

`cohst.app`

`app`