`johncoburn.dev`

DNSSEC	⚠️ Not signed
A	13.227.207.9^{🇺🇸 Amazon13.227.200.0/21 - Cloudfront}
		PTR	`server-13-227-207-9.gru3.r.cloudfront.net`
A	13.227.207.24^{🇺🇸 Amazon13.227.200.0/21 - Cloudfront}
A	13.227.207.57^{🇺🇸 Amazon13.227.200.0/21 - Cloudfront}
A	13.227.207.65^{🇺🇸 Amazon13.227.200.0/21 - Cloudfront}
NS	`ns-1720.awsdns-23.co.uk` ⭐
		A	2600:9000:5306:b800::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1720.awsdns-23.co.uk`
		A	205.251.198.184^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1720.awsdns-23.co.uk`
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-122.awsdns-15.com`
		A	2600:9000:5300:7a00::1^{🇺🇸 Amazon2600:9000:5300::/48 - CloudFront}
			PTR	`ns-122.awsdns-15.com`
		A	205.251.192.122^{🇺🇸 Amazon205.251.192.0/24 prefix}
			PTR	`ns-122.awsdns-15.com`
NS	`ns-943.awsdns-53.net`
		A	2600:9000:5303:af00::1^{🇺🇸 Amazon2600:9000:5303::/48 - CloudFront}
			PTR	`ns-943.awsdns-53.net`
		A	205.251.195.175^{🇺🇸 Amazon205.251.195.0/24 prefix}
			PTR	`ns-943.awsdns-53.net`
SOA	`ns-1720.awsdns-23.co.uk`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)

Same first word

johncoburn.com

johncoburn.dev

DNS History

32 records (8 active, 24 former)

●NSns-1210.awsdns-23.org2026-02-16 → 2026-03-28 · 2 obs

● 2026-02-16 02:26:20
● 2026-03-28 19:23:58

●NSns-122.awsdns-15.com2026-02-16 → 2026-03-28 · 2 obs

● 2026-02-16 02:26:20
● 2026-03-28 19:23:58

●NSns-1720.awsdns-23.co.uk2026-02-16 → 2026-03-28 · 2 obs

● 2026-02-16 02:26:20
● 2026-03-28 19:23:58

●NSns-943.awsdns-53.net2026-02-16 → 2026-03-28 · 2 obs

● 2026-02-16 02:26:20
● 2026-03-28 19:23:58

●A13.227.207.242026-03-28 → 2026-03-28 · 3 obs

○ 2026-03-28 04:27:34
● 2026-03-28 19:23:56
● 2026-03-28 19:23:58

●A13.227.207.572026-03-28 → 2026-03-28 · 3 obs

○ 2026-03-28 04:27:34
● 2026-03-28 19:23:56
● 2026-03-28 19:23:58

●A13.227.207.652026-03-28 → 2026-03-28 · 3 obs

○ 2026-03-28 04:27:34
● 2026-03-28 19:23:56
● 2026-03-28 19:23:58

●A13.227.207.92026-03-28 → 2026-03-28 · 3 obs

○ 2026-03-28 04:27:34
● 2026-03-28 19:23:56
● 2026-03-28 19:23:58

○A18.165.9.1042026-03-11 → 2026-03-21 · 7 obs

○ 2026-03-11 18:06:30
● 2026-03-11 18:40:08
○ 2026-03-13 12:19:56
○ 2026-03-20 16:27:42
● 2026-03-21 09:28:22
○ 2026-03-21 21:03:40
○ 2026-03-28 19:23:58

○A18.165.9.1282026-03-11 → 2026-03-21 · 7 obs

○ 2026-03-11 18:06:30
● 2026-03-11 18:40:08
○ 2026-03-13 12:19:56
○ 2026-03-20 16:27:42
● 2026-03-21 09:28:22
○ 2026-03-21 21:03:40
○ 2026-03-28 19:23:58

○A18.165.9.542026-03-11 → 2026-03-21 · 7 obs

○ 2026-03-11 18:06:30
● 2026-03-11 18:40:08
○ 2026-03-13 12:19:56
○ 2026-03-20 16:27:42
● 2026-03-21 09:28:22
○ 2026-03-21 21:03:40
○ 2026-03-28 19:23:58

○A18.165.9.912026-03-11 → 2026-03-21 · 7 obs

○ 2026-03-11 18:06:30
● 2026-03-11 18:40:08
○ 2026-03-13 12:19:56
○ 2026-03-20 16:27:42
● 2026-03-21 09:28:22
○ 2026-03-21 21:03:40
○ 2026-03-28 19:23:58

○A18.239.36.1262026-03-24 → 2026-03-24 · 4 obs

○ 2026-03-24 09:41:00
● 2026-03-24 11:15:06
○ 2026-03-24 18:36:56
○ 2026-03-28 19:23:58

○A18.239.36.452026-03-24 → 2026-03-24 · 4 obs

○ 2026-03-24 09:41:00
● 2026-03-24 11:15:06
○ 2026-03-24 18:36:56
○ 2026-03-28 19:23:58

○A18.239.36.622026-03-24 → 2026-03-24 · 4 obs

○ 2026-03-24 09:41:00
● 2026-03-24 11:15:06
○ 2026-03-24 18:36:56
○ 2026-03-28 19:23:58

○A18.239.36.772026-03-24 → 2026-03-24 · 4 obs

○ 2026-03-24 09:41:00
● 2026-03-24 11:15:06
○ 2026-03-24 18:36:56
○ 2026-03-28 19:23:58

○A18.245.187.1062026-02-16 → 2026-03-28 · 48 obs

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

○A18.245.187.1172026-02-16 → 2026-03-28 · 48 obs

○A18.245.187.142026-02-16 → 2026-03-28 · 48 obs

○A18.245.187.822026-02-16 → 2026-03-28 · 48 obs

○A3.163.125.1192026-02-19 → 2026-03-17 · 30 obs

○ 2026-02-17 03:57:16
● 2026-02-19 00:41:08
○ 2026-02-19 09:52:36
● 2026-02-20 01:26:50
● 2026-02-20 11:22:34
○ 2026-02-21 11:30:28
● 2026-02-22 05:53:36
● 2026-02-26 01:17:40
○ 2026-02-26 12:40:22
○ 2026-03-02 15:51:22
● 2026-03-03 02:49:34
● 2026-03-03 10:20:22
○ 2026-03-04 09:50:54
● 2026-03-04 11:17:46
○ 2026-03-05 01:12:10
○ 2026-03-10 03:10:22
● 2026-03-10 07:36:20
○ 2026-03-10 12:07:08
○ 2026-03-11 18:40:08
● 2026-03-13 12:19:56
○ 2026-03-14 07:02:40
○ 2026-03-14 13:25:34
● 2026-03-14 19:14:34
○ 2026-03-15 20:52:04
● 2026-03-16 03:51:48
● 2026-03-17 02:38:04
○ 2026-03-17 03:22:36
● 2026-03-17 12:01:58
○ 2026-03-18 15:06:38
○ 2026-03-28 19:23:58

○A3.163.125.62026-02-19 → 2026-03-17 · 30 obs

○A3.163.125.612026-02-19 → 2026-03-17 · 30 obs

○A3.163.125.692026-02-19 → 2026-03-17 · 30 obs

○A3.170.3.542026-02-16 → 2026-03-27 · 45 obs

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

○A3.170.3.732026-02-16 → 2026-03-27 · 45 obs

○A3.170.3.872026-02-16 → 2026-03-27 · 45 obs

○A3.170.3.972026-02-16 → 2026-03-27 · 45 obs

○A3.174.113.402026-03-24 → 2026-03-25 · 7 obs

○ 2026-03-24 05:28:30
● 2026-03-24 09:41:00
○ 2026-03-24 11:15:06
○ 2026-03-25 01:15:12
● 2026-03-25 03:01:28
○ 2026-03-25 04:56:44
○ 2026-03-28 19:23:58

○A3.174.113.442026-03-24 → 2026-03-25 · 7 obs

○ 2026-03-24 05:28:30
● 2026-03-24 09:41:00
○ 2026-03-24 11:15:06
○ 2026-03-25 01:15:12
● 2026-03-25 03:01:28
○ 2026-03-25 04:56:44
○ 2026-03-28 19:23:58

○A3.174.113.492026-03-24 → 2026-03-25 · 7 obs

○ 2026-03-24 05:28:30
● 2026-03-24 09:41:00
○ 2026-03-24 11:15:06
○ 2026-03-25 01:15:12
● 2026-03-25 03:01:28
○ 2026-03-25 04:56:44
○ 2026-03-28 19:23:58

○A3.174.113.972026-03-24 → 2026-03-25 · 7 obs

○ 2026-03-24 05:28:30
● 2026-03-24 09:41:00
○ 2026-03-24 11:15:06
○ 2026-03-25 01:15:12
● 2026-03-25 03:01:28
○ 2026-03-25 04:56:44
○ 2026-03-28 19:23:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld5.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
johncoburn.dev	ns-122.awsdns-15.com, ns-1720.awsdns-23.co.uk, ns-943.awsdns-53.net, ns-1210.awsdns-23.org	-

✅ Authoritative Response

Server:205.251.192.122

NS records: ns-122.awsdns-15.com, ns-1720.awsdns-23.co.uk, ns-943.awsdns-53.net, ns-1210.awsdns-23.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for johncoburn.dev (unsigned zone)

⏱️ Timing

Total: 352ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`13.227.207.57, 13.227.207.24...`
NS	4	`ns-1210.awsdns-23.org, ns-122.awsdns-15.com...`
SOA	1	`ns-1720.awsdns-23.co.uk awsdns-hostmaste`

Analysis

IP Addresses

johncoburn.dev resolves to four IPs: 13.227.207.9, 13.227.207.24, 13.227.207.57 and 13.227.207.65.

Other host names such as d175byxdcfzgzr.cloudfront.net, app.finup.ai, rebuildingsociety.com, buildsummit.com and www.landmarksolutions.co.uk share IP numbers with johncoburn.dev.

Name Servers

johncoburn.dev is delegated to four name servers: ns-122.awsdns-15.com, ns-943.awsdns-53.net, ns-1210.awsdns-23.org and ns-1720.awsdns-23.co.uk.

At least part of the name servers for johncoburn.dev are shared with other domains, for instance tnresidency.com, masaagent.com, evbane.com, lespromenadesbeauport.com and dpoll.com.