co4.dev - dns.ninja

`co4.dev`

DNSSEC	⚠️ Not signed
A	13.35.107.59^{🇺🇸 Amazon13.35.107.0/24 -Cloudfront}
		PTR	`server-13-35-107-59.phl51.r.cloudfront.net`
A	13.35.107.66^{🇺🇸 Amazon13.35.107.0/24 -Cloudfront}
A	13.35.107.101^{🇺🇸 Amazon13.35.107.0/24 -Cloudfront}
A	13.35.107.119^{🇺🇸 Amazon13.35.107.0/24 -Cloudfront}
NS	`ns-215.awsdns-26.com` ⭐
		A	2600:9000:5300:d700::1^{🇺🇸 Amazon2600:9000:5300::/48 - CloudFront}
			PTR	`ns-215.awsdns-26.com`
		A	205.251.192.215^{🇺🇸 Amazon205.251.192.0/24 prefix}
			PTR	`ns-215.awsdns-26.com`
NS	`ns-1210.awsdns-23.org`
		A	2600:9000:5304:ba00::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1210.awsdns-23.org`
		A	205.251.196.186^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1210.awsdns-23.org`
NS	`ns-1691.awsdns-19.co.uk`
		A	2600:9000:5306:9b00::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1691.awsdns-19.co.uk`
		A	205.251.198.155^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1691.awsdns-19.co.uk`
NS	`ns-821.awsdns-38.net`
		A	2600:9000:5303:3500::1^{🇺🇸 Amazon2600:9000:5303::/48 - CloudFront}
			PTR	`ns-821.awsdns-38.net`
		A	205.251.195.53^{🇺🇸 Amazon205.251.195.0/24 prefix}
			PTR	`ns-821.awsdns-38.net`
SOA	`ns-215.awsdns-26.com`awsdns-hostmaster@amazon.com serial=1

`dev`

	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=1

🔒 HSTS Preload (+subdomains)

Subdomains

auth.co4.dev

Same first word

co4.ltd

co4.ru

co4.com.au

co4.store

co4.ch

co4.com

co4.eu

co4.at

co4.cn

co4.dev

co4.in

co4.org

co4.homes

co4.pl

co4.nl

co4.ca

co4.cloud

co4.jp

co4.cc

co4.dk

co4.me

co4.de

Similar names

c4o.org

4oc.pl

c4o.com

4co.com

4co.pl

4oc.cn

c4o.space

4co.dk

oc4.land

c4o.eu

4co.eu

4oc.cc

o4c.ch

4co.tw

4co.jp

o4c.co.il

oc4.ru

oc4.cz

o4c.nl

4co.uk

oc4.com

4oc.net

4oc.mobi

4co.cc

4oc.ru

o4c.de

c4o.cn

4co.me

4co.de

4co.co

c4o.de

o4c.org

o4c.eu

4oc.com

oc4.de

4oc.de

o4c.com

oc4.net

4co.nl

4co.in

c4o.ru

4co.ai

4co.com.cn

4co.net

4oc.me

DNS History

92 records (8 active, 84 former)

●NSns-1210.awsdns-23.org2026-02-15 → 2026-07-27 · 2 obs

● 2026-02-15 17:10:00
● 2026-07-27 15:48:26

●NSns-1691.awsdns-19.co.uk2026-02-15 → 2026-07-27 · 2 obs

● 2026-02-15 17:10:00
● 2026-07-27 15:48:26

●NSns-215.awsdns-26.com2026-02-15 → 2026-07-27 · 2 obs

● 2026-02-15 17:10:00
● 2026-07-27 15:48:26

●NSns-821.awsdns-38.net2026-02-15 → 2026-07-27 · 2 obs

● 2026-02-15 17:10:00
● 2026-07-27 15:48:26

○A13.224.252.1232026-05-05 → 2026-07-23 · 66 obs

○ 2026-05-05 11:51:16
● 2026-05-05 12:45:18
○ 2026-05-05 14:42:32
○ 2026-05-08 01:38:16
● 2026-05-08 09:55:30
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● 2026-05-19 08:47:26
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● 2026-07-16 02:22:58
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● 2026-07-17 02:50:24
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● 2026-07-18 02:13:18
○ 2026-07-20 20:09:48
● 2026-07-21 10:20:26
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● 2026-07-23 23:34:50
○ 2026-07-24 05:27:18
○ 2026-07-27 15:48:26

○A13.224.252.222026-05-05 → 2026-07-23 · 66 obs

○A13.224.252.282026-05-05 → 2026-07-23 · 66 obs

○A13.224.252.852026-05-05 → 2026-07-23 · 66 obs

○A13.224.95.102026-04-27 → 2026-06-10 · 16 obs

○ 2026-04-27 05:47:26
● 2026-04-27 13:52:06
● 2026-05-05 11:51:16
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● 2026-05-05 14:42:32
● 2026-05-06 06:50:52
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○ 2026-05-15 20:40:04
● 2026-05-15 23:27:32
● 2026-05-18 19:10:52
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○ 2026-06-08 11:51:04
● 2026-06-08 13:35:26
● 2026-06-10 19:10:20
○ 2026-06-11 01:44:22
○ 2026-07-27 15:48:26

○A13.224.95.1022026-04-27 → 2026-06-10 · 16 obs

○A13.224.95.1042026-04-27 → 2026-06-10 · 16 obs

○A13.224.95.1232026-04-27 → 2026-06-10 · 16 obs

○A13.225.107.1132026-04-07 → 2026-04-27 · 21 obs

○ 2026-03-28 02:51:34
● 2026-04-07 03:10:24
○ 2026-04-07 09:24:16
● 2026-04-10 15:34:38
○ 2026-04-11 02:10:34
○ 2026-04-12 04:14:48
● 2026-04-13 22:24:44
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● 2026-04-15 08:42:44
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● 2026-04-15 20:53:00
● 2026-04-15 23:33:10
○ 2026-04-16 01:33:48
○ 2026-04-17 09:42:24
● 2026-04-17 16:09:28
○ 2026-04-19 05:31:28
○ 2026-04-26 04:30:04
● 2026-04-27 04:54:04
○ 2026-04-27 05:47:26
○ 2026-07-27 15:48:26

○A13.225.107.592026-04-07 → 2026-04-27 · 21 obs

○A13.225.107.812026-04-07 → 2026-04-27 · 21 obs

○A13.225.107.92026-04-07 → 2026-04-27 · 21 obs

○A13.225.47.1182026-05-19 → 2026-07-02 · 30 obs

○ 2026-05-19 08:47:26
● 2026-05-19 15:31:30
● 2026-05-21 02:33:24
○ 2026-05-21 06:50:44
● 2026-05-21 07:40:48
● 2026-05-26 14:17:26
○ 2026-05-27 01:27:04
● 2026-05-27 17:43:42
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● 2026-05-30 07:26:16
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● 2026-06-01 16:19:32
● 2026-06-07 06:21:12
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● 2026-06-08 03:47:32
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● 2026-07-02 02:15:24
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● 2026-07-02 21:12:58
○ 2026-07-03 02:22:56
○ 2026-07-27 15:48:26

○A13.225.47.1202026-05-19 → 2026-07-02 · 30 obs

○A13.225.47.272026-05-19 → 2026-07-02 · 30 obs

○A13.225.47.292026-05-19 → 2026-07-02 · 30 obs

○A13.226.144.1022026-02-17 → 2026-06-30 · 36 obs

○ 2026-02-16 21:54:40
● 2026-02-17 01:42:18
● 2026-02-17 10:46:40
○ 2026-02-17 13:01:10
○ 2026-03-23 02:09:38
● 2026-03-23 19:01:08
● 2026-04-07 09:24:16
○ 2026-04-10 15:34:38
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● 2026-04-20 01:41:20
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● 2026-05-15 04:49:48
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○ 2026-07-27 15:48:26

○A13.226.144.1282026-02-17 → 2026-06-30 · 36 obs

○A13.226.144.442026-02-17 → 2026-06-30 · 36 obs

○A13.226.144.982026-02-17 → 2026-06-30 · 36 obs

○A13.227.173.1172026-07-27 → 2026-07-27 · 4 obs

○ 2026-07-26 19:50:24
● 2026-07-27 07:45:30
○ 2026-07-27 09:55:14
○ 2026-07-27 15:48:26

○A13.227.173.162026-07-27 → 2026-07-27 · 4 obs

○ 2026-07-26 19:50:24
● 2026-07-27 07:45:30
○ 2026-07-27 09:55:14
○ 2026-07-27 15:48:26

○A13.227.173.202026-07-27 → 2026-07-27 · 4 obs

○ 2026-07-26 19:50:24
● 2026-07-27 07:45:30
○ 2026-07-27 09:55:14
○ 2026-07-27 15:48:26

○A13.227.173.302026-07-27 → 2026-07-27 · 4 obs

○ 2026-07-26 19:50:24
● 2026-07-27 07:45:30
○ 2026-07-27 09:55:14
○ 2026-07-27 15:48:26

○A13.33.131.1112026-07-03 → 2026-07-26 · 22 obs

○ 2026-07-03 02:22:56
● 2026-07-03 08:13:44
○ 2026-07-03 16:15:04
● 2026-07-13 21:21:00
○ 2026-07-14 00:54:36
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● 2026-07-26 00:30:10
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○ 2026-07-27 07:45:30
○ 2026-07-27 15:48:26

○A13.33.131.1262026-07-03 → 2026-07-26 · 22 obs

○A13.33.131.362026-07-03 → 2026-07-26 · 22 obs

○A13.33.131.892026-07-03 → 2026-07-26 · 22 obs

○A13.33.235.1282026-03-25 → 2026-07-17 · 28 obs

○ 2026-03-23 19:01:08
● 2026-03-25 13:27:02
○ 2026-03-25 17:55:52
● 2026-07-13 07:10:22
○ 2026-07-13 09:01:02
● 2026-07-13 15:25:50
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● 2026-07-14 00:54:36
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● 2026-07-14 05:33:48
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● 2026-07-14 20:01:56
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● 2026-07-15 09:01:24
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● 2026-07-15 15:39:24
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● 2026-07-16 10:48:26
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○ 2026-07-17 02:08:24
○ 2026-07-27 15:48:26

○A13.33.235.212026-03-25 → 2026-07-17 · 28 obs

○A13.33.235.592026-03-25 → 2026-07-17 · 28 obs

○A13.33.235.862026-03-25 → 2026-07-17 · 28 obs

●A13.35.107.1012026-07-13 → 2026-07-27 · 29 obs

○ 2026-07-13 15:25:50
● 2026-07-13 19:01:20
○ 2026-07-13 21:21:00
● 2026-07-14 01:41:30
○ 2026-07-14 05:33:48
● 2026-07-14 11:28:00
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● 2026-07-20 20:09:48
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● 2026-07-27 09:55:14
● 2026-07-27 15:48:26

●A13.35.107.1192026-07-13 → 2026-07-27 · 29 obs

●A13.35.107.592026-07-13 → 2026-07-27 · 29 obs

●A13.35.107.662026-07-13 → 2026-07-27 · 29 obs

○A18.155.21.1022026-07-12 → 2026-07-15 · 6 obs

○ 2026-07-12 02:38:22
● 2026-07-12 13:12:24
○ 2026-07-13 03:46:10
● 2026-07-15 11:59:24
○ 2026-07-15 15:39:24
○ 2026-07-27 15:48:26

○A18.155.21.1112026-07-12 → 2026-07-15 · 6 obs

○ 2026-07-12 02:38:22
● 2026-07-12 13:12:24
○ 2026-07-13 03:46:10
● 2026-07-15 11:59:24
○ 2026-07-15 15:39:24
○ 2026-07-27 15:48:26

○A18.155.21.22026-07-12 → 2026-07-15 · 6 obs

○ 2026-07-12 02:38:22
● 2026-07-12 13:12:24
○ 2026-07-13 03:46:10
● 2026-07-15 11:59:24
○ 2026-07-15 15:39:24
○ 2026-07-27 15:48:26

○A18.155.21.742026-07-12 → 2026-07-15 · 6 obs

○ 2026-07-12 02:38:22
● 2026-07-12 13:12:24
○ 2026-07-13 03:46:10
● 2026-07-15 11:59:24
○ 2026-07-15 15:39:24
○ 2026-07-27 15:48:26

○A18.164.144.372026-05-26 → 2026-05-26 · 4 obs

○ 2026-05-26 14:17:26
● 2026-05-26 20:26:12
○ 2026-05-26 21:40:54
○ 2026-07-27 15:48:26

○A18.164.144.542026-05-26 → 2026-05-26 · 4 obs

○ 2026-05-26 14:17:26
● 2026-05-26 20:26:12
○ 2026-05-26 21:40:54
○ 2026-07-27 15:48:26

○A18.164.144.562026-05-26 → 2026-05-26 · 4 obs

○ 2026-05-26 14:17:26
● 2026-05-26 20:26:12
○ 2026-05-26 21:40:54
○ 2026-07-27 15:48:26

○A18.164.144.932026-05-26 → 2026-05-26 · 4 obs

○ 2026-05-26 14:17:26
● 2026-05-26 20:26:12
○ 2026-05-26 21:40:54
○ 2026-07-27 15:48:26

○A18.165.201.102026-02-15 → 2026-02-16 · 7 obs

● 2026-02-15 17:10:00
● 2026-02-15 23:11:10
○ 2026-02-16 00:10:18
● 2026-02-16 05:12:36
● 2026-02-16 17:12:02
○ 2026-02-16 21:54:40
○ 2026-07-27 15:48:26

○A18.165.201.1082026-02-15 → 2026-02-16 · 7 obs

● 2026-02-15 17:10:00
● 2026-02-15 23:11:10
○ 2026-02-16 00:10:18
● 2026-02-16 05:12:36
● 2026-02-16 17:12:02
○ 2026-02-16 21:54:40
○ 2026-07-27 15:48:26

○A18.165.201.732026-02-15 → 2026-02-16 · 7 obs

● 2026-02-15 17:10:00
● 2026-02-15 23:11:10
○ 2026-02-16 00:10:18
● 2026-02-16 05:12:36
● 2026-02-16 17:12:02
○ 2026-02-16 21:54:40
○ 2026-07-27 15:48:26

○A18.165.201.912026-02-15 → 2026-02-16 · 7 obs

● 2026-02-15 17:10:00
● 2026-02-15 23:11:10
○ 2026-02-16 00:10:18
● 2026-02-16 05:12:36
● 2026-02-16 17:12:02
○ 2026-02-16 21:54:40
○ 2026-07-27 15:48:26

○A18.172.153.1162026-02-15 → 2026-07-27 · 2 obs

○ 2026-02-15 17:10:00
○ 2026-07-27 15:48:26

○A18.172.153.1242026-02-15 → 2026-07-27 · 2 obs

○ 2026-02-15 17:10:00
○ 2026-07-27 15:48:26

○A18.172.153.242026-02-15 → 2026-07-27 · 2 obs

○ 2026-02-15 17:10:00
○ 2026-07-27 15:48:26

○A18.172.153.322026-02-15 → 2026-07-27 · 2 obs

○ 2026-02-15 17:10:00
○ 2026-07-27 15:48:26

○A18.238.49.1292026-03-07 → 2026-03-22 · 7 obs

○ 2026-03-04 23:13:18
● 2026-03-07 21:26:38
○ 2026-03-07 23:48:06
○ 2026-03-21 07:03:04
● 2026-03-22 15:56:30
○ 2026-03-22 21:55:40
○ 2026-07-27 15:48:26

○A18.238.49.292026-03-07 → 2026-03-22 · 7 obs

○ 2026-03-04 23:13:18
● 2026-03-07 21:26:38
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○A18.238.49.672026-03-07 → 2026-03-22 · 7 obs

○ 2026-03-04 23:13:18
● 2026-03-07 21:26:38
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● 2026-03-22 15:56:30
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○A18.238.49.82026-03-07 → 2026-03-22 · 7 obs

○ 2026-03-04 23:13:18
● 2026-03-07 21:26:38
○ 2026-03-07 23:48:06
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● 2026-03-22 15:56:30
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○A18.239.183.102026-04-25 → 2026-05-15 · 9 obs

○ 2026-04-20 01:41:20
● 2026-04-25 09:58:20
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○A18.239.183.1172026-04-25 → 2026-05-15 · 9 obs

○A18.239.183.382026-04-25 → 2026-05-15 · 9 obs

○A18.239.183.52026-04-25 → 2026-05-15 · 9 obs

○A3.169.252.1092026-02-17 → 2026-07-24 · 40 obs

○ 2026-02-17 10:46:40
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● 2026-02-18 03:55:54
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● 2026-02-18 08:38:34
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○A3.169.252.1272026-02-17 → 2026-07-24 · 40 obs

○A3.169.252.22026-02-17 → 2026-07-24 · 40 obs

○A3.169.252.882026-02-17 → 2026-07-24 · 40 obs

○A3.170.3.1132026-02-16 → 2026-07-11 · 43 obs

○ 2026-02-15 23:11:10
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○A3.170.3.352026-02-16 → 2026-07-11 · 43 obs

○A3.170.3.682026-02-16 → 2026-07-11 · 43 obs

○A3.170.3.842026-02-16 → 2026-07-11 · 43 obs

○A3.174.26.502026-06-07 → 2026-06-07 · 7 obs

○ 2026-06-07 06:21:12
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○A3.174.26.582026-06-07 → 2026-06-07 · 7 obs

○ 2026-06-07 06:21:12
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○A3.174.26.772026-06-07 → 2026-06-07 · 7 obs

○ 2026-06-07 06:21:12
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○A3.174.26.922026-06-07 → 2026-06-07 · 7 obs

○ 2026-06-07 06:21:12
● 2026-06-07 12:27:06
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○A3.174.29.152026-04-14 → 2026-04-17 · 10 obs

○ 2026-04-14 04:11:42
● 2026-04-14 10:27:58
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○A3.174.29.232026-04-14 → 2026-04-17 · 10 obs

○A3.174.29.802026-04-14 → 2026-04-17 · 10 obs

○A3.174.29.852026-04-14 → 2026-04-17 · 10 obs

○A52.84.45.1142026-05-27 → 2026-05-27 · 4 obs

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● 2026-05-27 01:27:04
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○A52.84.45.1272026-05-27 → 2026-05-27 · 4 obs

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● 2026-05-27 01:27:04
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○A52.84.45.32026-05-27 → 2026-05-27 · 4 obs

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● 2026-05-27 01:27:04
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○A52.84.45.312026-05-27 → 2026-05-27 · 4 obs

○ 2026-05-26 21:40:54
● 2026-05-27 01:27:04
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○A52.85.78.1192026-06-16 → 2026-06-17 · 5 obs

○ 2026-06-16 15:41:38
● 2026-06-16 22:53:22
● 2026-06-17 11:43:30
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○A52.85.78.1202026-06-16 → 2026-06-17 · 5 obs

○ 2026-06-16 15:41:38
● 2026-06-16 22:53:22
● 2026-06-17 11:43:30
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○A52.85.78.132026-06-16 → 2026-06-17 · 5 obs

○ 2026-06-16 15:41:38
● 2026-06-16 22:53:22
● 2026-06-17 11:43:30
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○A52.85.78.622026-06-16 → 2026-06-17 · 5 obs

○ 2026-06-16 15:41:38
● 2026-06-16 22:53:22
● 2026-06-17 11:43:30
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○A54.230.79.1112026-06-26 → 2026-06-29 · 6 obs

○ 2026-06-26 10:06:30
● 2026-06-26 20:02:44
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● 2026-06-29 18:27:32
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○A54.230.79.322026-06-26 → 2026-06-29 · 6 obs

○ 2026-06-26 10:06:30
● 2026-06-26 20:02:44
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● 2026-06-29 18:27:32
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○A54.230.79.592026-06-26 → 2026-06-29 · 6 obs

○ 2026-06-26 10:06:30
● 2026-06-26 20:02:44
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● 2026-06-29 18:27:32
○ 2026-06-29 21:50:48
○ 2026-07-27 15:48:26

○A54.230.79.72026-06-26 → 2026-06-29 · 6 obs

○ 2026-06-26 10:06:30
● 2026-06-26 20:02:44
○ 2026-06-26 23:42:46
● 2026-06-29 18:27:32
○ 2026-06-29 21:50:48
○ 2026-07-27 15:48:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com...	-
co4.dev	ns-1691.awsdns-19.co.uk, ns-1210.awsdns-23.org, ns-215.awsdns-26.com, ns-821.awsdns-38.net	-

✅ Authoritative Response

Server:205.251.195.53

NS records: ns-1691.awsdns-19.co.uk, ns-1210.awsdns-23.org, ns-215.awsdns-26.com, ns-821.awsdns-38.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for co4.dev (unsigned zone)

⏱️ Timing

Total: 1475ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`13.35.107.101, 13.35.107.66...`
NS	4	`ns-1210.awsdns-23.org, ns-1691.awsdns-19.co.uk...`
SOA	1	`ns-215.awsdns-26.com awsdns-hostmaster.a`

Analysis

Hierarchy

co4.dev serves as the parent of auth.co4.dev.

IP Addresses

co4.dev has four IP addresses: 13.35.107.59, 13.35.107.66, 13.35.107.101 and 13.35.107.119.

Two other host names, along with tu9srvbirvvtmtkkcnriy2muznlizxiuy29t.g00.wowhead.com, control-ra.org and www.kk-mst.jp, also share IP numbers with co4.dev.

Name Servers

The NS records for co4.dev point to four name servers: ns-215.awsdns-26.com, ns-821.awsdns-38.net, ns-1210.awsdns-23.org and ns-1691.awsdns-19.co.uk.

co4.dev has at least partial name server overlap with other domains, such as helloruby.com, eschool.mn, myaccessiblemath.org and two others.

ns-215.awsdns-26.com, ns-821.awsdns-38.net, ns-1210.awsdns-23.org and ns-1691.awsdns-19.co.uk all point to exactly two IP numbers each: ns-215.awsdns-26.com → 205.251.192.215 and 2600:9000:5300:d700::1; ns-821.awsdns-38.net → 205.251.195.53 and 2600:9000:5303:3500::1; ns-1210.awsdns-23.org → 205.251.196.186 and 2600:9000:5304:ba00::1; ns-1691.awsdns-19.co.uk → 205.251.198.155 and 2600:9000:5306:9b00::1.