repengineering.io - dns.ninja

`repengineering.io`

DNSSEC	⚠️ Not signed
A	3.170.42.4^{🇺🇸 Amazon3.170.40.0/22}
		PTR	`server-3-170-42-4.iad61.r.cloudfront.net`
A	3.170.42.94^{🇺🇸 Amazon3.170.40.0/22}
A	3.170.42.118^{🇺🇸 Amazon3.170.40.0/22}
A	3.170.42.121^{🇺🇸 Amazon3.170.40.0/22}
NS	`ns-1403.awsdns-47.org` ⭐
		A	2600:9000:5305:7b00::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1403.awsdns-47.org`
		A	205.251.197.123^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1403.awsdns-47.org`
NS	`ns-1636.awsdns-12.co.uk`
		A	2600:9000:5306:6400::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1636.awsdns-12.co.uk`
		A	205.251.198.100^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1636.awsdns-12.co.uk`
NS	`ns-275.awsdns-34.com`
		A	2600:9000:5301:1300::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-275.awsdns-34.com`
		A	205.251.193.19^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-275.awsdns-34.com`
NS	`ns-545.awsdns-04.net`
		A	2600:9000:5302:2100::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-545.awsdns-04.net`
		A	205.251.194.33^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-545.awsdns-04.net`
MX	`inbound-smtp.eu-west-1.amazonaws.com` ⭐
		A	18.200.203.69^{🇮🇪 Amazon18.200.0.0/16 EC2 DUB prefix}
			PTR	`ec2-18-200-203-69.eu-west-1.compute.amazonaws.com`
		A	54.76.31.185^{🇮🇪 Amazon54.76.0.0/15 EC2 DUB prefix}
			PTR	`ec2-54-76-31-185.eu-west-1.compute.amazonaws.com`
		A	54.155.140.59^{🇮🇪 Amazon54.155.0.0/16 EC2 DUB prefix}
			PTR	`ec2-54-155-140-59.eu-west-1.compute.amazonaws.com`
TXT	`v=spf1 include:amazonses.com ~all`
SOA	`ns-1403.awsdns-47.org`awsdns-hostmaster@amazon.com serial=1

`io`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.nic.io` ⭐
	NS	`a2.nic.io`
	NS	`b0.nic.io`
	NS	`c0.nic.io`
	SOA	`a0.nic.io`hostmaster@donuts.email serial=1782472866

Subdomains

api.repengineering.io

Same first word

repengineering.io

Similar names

preengineering.co.in

DNS History

41 records (9 active, 32 former)

●NSns-1403.awsdns-47.org2026-02-18 → 2026-06-26 · 2 obs

● 2026-02-18 03:29:02
● 2026-06-26 11:54:10

●NSns-1636.awsdns-12.co.uk2026-02-18 → 2026-06-26 · 2 obs

● 2026-02-18 03:29:02
● 2026-06-26 11:54:10

●NSns-275.awsdns-34.com2026-02-18 → 2026-06-26 · 2 obs

● 2026-02-18 03:29:02
● 2026-06-26 11:54:10

●NSns-545.awsdns-04.net2026-02-18 → 2026-06-26 · 2 obs

● 2026-02-18 03:29:02
● 2026-06-26 11:54:10

●MXinbound-smtp.eu-west-1.amazonaws.com2026-02-18 → 2026-06-26 · 2 obs

● 2026-02-18 03:29:02
● 2026-06-26 11:54:10

○A108.156.22.1012026-03-25 → 2026-03-25 · 5 obs

○ 2026-03-25 01:13:58
● 2026-03-25 11:37:18
● 2026-03-25 17:23:08
○ 2026-03-26 04:31:54
○ 2026-06-26 11:54:10

○A108.156.22.122026-03-25 → 2026-03-25 · 5 obs

○ 2026-03-25 01:13:58
● 2026-03-25 11:37:18
● 2026-03-25 17:23:08
○ 2026-03-26 04:31:54
○ 2026-06-26 11:54:10

○A108.156.22.1252026-03-25 → 2026-03-25 · 5 obs

○ 2026-03-25 01:13:58
● 2026-03-25 11:37:18
● 2026-03-25 17:23:08
○ 2026-03-26 04:31:54
○ 2026-06-26 11:54:10

○A108.156.22.292026-03-25 → 2026-03-25 · 5 obs

○ 2026-03-25 01:13:58
● 2026-03-25 11:37:18
● 2026-03-25 17:23:08
○ 2026-03-26 04:31:54
○ 2026-06-26 11:54:10

○A13.249.96.1012026-06-02 → 2026-06-12 · 14 obs

○ 2026-06-02 01:02:38
● 2026-06-02 02:30:30
● 2026-06-03 21:44:30
○ 2026-06-04 00:15:56
● 2026-06-04 04:14:22
○ 2026-06-07 15:07:12
● 2026-06-08 00:36:56
○ 2026-06-08 15:58:16
● 2026-06-08 22:57:44
○ 2026-06-11 20:07:08
○ 2026-06-11 22:16:42
● 2026-06-12 08:44:34
○ 2026-06-13 09:06:20
○ 2026-06-26 11:54:10

○A13.249.96.142026-06-02 → 2026-06-12 · 14 obs

○A13.249.96.782026-06-02 → 2026-06-12 · 14 obs

○A13.249.96.872026-06-02 → 2026-06-12 · 14 obs

○A13.249.98.112026-05-11 → 2026-05-30 · 11 obs

○ 2026-05-11 10:29:54
● 2026-05-11 14:15:44
● 2026-05-13 19:26:02
○ 2026-05-16 14:39:04
○ 2026-05-26 07:56:22
● 2026-05-27 00:02:14
● 2026-05-27 23:03:44
○ 2026-05-30 05:10:58
● 2026-05-30 06:37:20
○ 2026-06-02 01:02:38
○ 2026-06-26 11:54:10

○A13.249.98.142026-05-11 → 2026-05-30 · 11 obs

○A13.249.98.212026-05-11 → 2026-05-30 · 11 obs

○A13.249.98.642026-05-11 → 2026-05-30 · 11 obs

○A13.33.109.1122026-05-19 → 2026-05-21 · 15 obs

○ 2026-05-19 11:28:36
● 2026-05-19 12:10:36
● 2026-05-19 14:31:20
○ 2026-05-19 16:10:54
● 2026-05-19 18:01:48
○ 2026-05-19 18:33:04
● 2026-05-19 21:23:32
○ 2026-05-20 04:34:58
● 2026-05-20 05:23:58
● 2026-05-20 07:43:16
○ 2026-05-20 13:44:30
● 2026-05-20 14:26:40
● 2026-05-21 03:03:50
○ 2026-05-21 08:52:16
○ 2026-06-26 11:54:10

○A13.33.109.132026-05-19 → 2026-05-21 · 15 obs

○A13.33.109.552026-05-19 → 2026-05-21 · 15 obs

○A13.33.109.692026-05-19 → 2026-05-21 · 15 obs

○A216.137.39.332026-02-18 → 2026-02-25 · 10 obs

○ 2026-02-18 03:29:02
● 2026-02-18 11:18:58
○ 2026-02-18 11:59:16
○ 2026-02-19 11:36:20
● 2026-02-20 00:15:54
○ 2026-02-20 01:02:44
○ 2026-02-24 00:03:02
● 2026-02-25 06:12:08
○ 2026-02-25 12:03:48
○ 2026-06-26 11:54:10

○A216.137.39.532026-02-18 → 2026-02-25 · 10 obs

○A216.137.39.552026-02-18 → 2026-02-25 · 10 obs

○A216.137.39.682026-02-18 → 2026-02-25 · 10 obs

○A216.137.53.1092026-02-18 → 2026-06-15 · 40 obs

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

○A216.137.53.332026-02-18 → 2026-06-15 · 40 obs

○A216.137.53.352026-02-18 → 2026-06-15 · 40 obs

○A216.137.53.52026-02-18 → 2026-06-15 · 40 obs

○A3.162.163.1042026-05-19 → 2026-06-07 · 62 obs

○ 2026-05-16 14:39:04
● 2026-05-19 11:28:36
○ 2026-05-19 12:10:36
○ 2026-05-19 14:31:20
● 2026-05-19 16:10:54
○ 2026-05-19 18:01:48
● 2026-05-19 18:33:04
○ 2026-05-19 21:23:32
● 2026-05-20 04:34:58
○ 2026-05-20 05:23:58
○ 2026-05-20 07:43:16
● 2026-05-20 13:44:30
○ 2026-05-20 14:26:40
○ 2026-05-21 08:52:16
● 2026-05-21 09:53:36
○ 2026-05-21 11:59:40
● 2026-05-21 16:35:44
○ 2026-05-21 17:41:52
● 2026-05-21 19:31:08
○ 2026-05-21 21:13:28
● 2026-05-22 01:53:58
○ 2026-05-22 07:29:38
● 2026-05-22 16:29:04
○ 2026-05-22 17:49:10
● 2026-05-22 19:45:22
○ 2026-05-23 00:51:34
● 2026-05-23 11:48:06
○ 2026-05-23 14:22:04
● 2026-05-23 21:04:34
○ 2026-05-23 22:22:34
● 2026-05-24 00:42:00
○ 2026-05-24 01:50:36
● 2026-05-24 06:49:38
○ 2026-05-24 09:49:32
● 2026-05-24 16:45:52
○ 2026-05-24 19:09:42
● 2026-05-24 20:46:08
○ 2026-05-24 21:30:34
● 2026-05-24 22:21:22
○ 2026-05-25 06:41:08
○ 2026-05-25 07:35:02
● 2026-05-25 08:58:28
○ 2026-05-25 10:11:04
● 2026-05-25 12:39:24
○ 2026-05-25 16:01:12
● 2026-05-25 18:12:00
○ 2026-05-25 22:47:02
● 2026-05-26 00:50:24
○ 2026-05-26 02:11:50
● 2026-05-26 04:19:54
○ 2026-05-26 07:56:22
○ 2026-05-27 23:03:44
● 2026-05-30 05:10:58
○ 2026-05-30 06:37:20
● 2026-06-02 01:02:38
○ 2026-06-02 02:30:30
○ 2026-06-03 21:44:30
● 2026-06-04 00:15:56
○ 2026-06-04 04:14:22
● 2026-06-07 15:07:12
○ 2026-06-08 00:36:56
○ 2026-06-26 11:54:10

○A3.162.163.302026-05-19 → 2026-06-07 · 62 obs

○A3.162.163.42026-05-19 → 2026-06-07 · 62 obs

○A3.162.163.502026-05-19 → 2026-06-07 · 62 obs

●A3.170.42.1182026-02-18 → 2026-06-26 · 67 obs

○ 2026-02-18 03:29:02
○ 2026-02-18 11:18:58
● 2026-02-18 11:59:16
○ 2026-02-18 13:22:30
● 2026-02-19 06:29:52
○ 2026-02-19 08:22:18
○ 2026-02-20 01:02:44
● 2026-02-20 10:37:32
○ 2026-02-20 16:03:20
○ 2026-02-21 14:29:38
● 2026-02-21 15:34:54
○ 2026-02-21 21:01:26
○ 2026-02-22 05:47:26
● 2026-02-23 22:51:30
○ 2026-02-24 00:03:02
○ 2026-02-25 12:03:48
● 2026-02-25 14:40:22
○ 2026-02-25 16:03:18
○ 2026-03-20 19:42:54
● 2026-03-25 01:13:58
○ 2026-03-25 11:37:18
○ 2026-05-21 03:03:50
● 2026-05-21 08:52:16
○ 2026-05-21 09:53:36
● 2026-05-21 11:59:40
○ 2026-05-21 16:35:44
● 2026-05-21 17:41:52
○ 2026-05-21 19:31:08
● 2026-05-21 21:13:28
○ 2026-05-22 01:53:58
● 2026-05-22 07:29:38
○ 2026-05-22 16:29:04
● 2026-05-22 17:49:10
○ 2026-05-22 19:45:22
● 2026-05-23 00:51:34
○ 2026-05-23 11:48:06
● 2026-05-23 14:22:04
○ 2026-05-23 21:04:34
● 2026-05-23 22:22:34
○ 2026-05-24 00:42:00
● 2026-05-24 01:50:36
○ 2026-05-24 06:49:38
● 2026-05-24 09:49:32
○ 2026-05-24 16:45:52
● 2026-05-24 19:09:42
○ 2026-05-24 20:46:08
● 2026-05-24 21:30:34
○ 2026-05-24 22:21:22
● 2026-05-25 06:41:08
● 2026-05-25 07:35:02
○ 2026-05-25 08:58:28
● 2026-05-25 10:11:04
○ 2026-05-25 12:39:24
● 2026-05-25 16:01:12
○ 2026-05-25 18:12:00
● 2026-05-25 22:47:02
○ 2026-05-26 00:50:24
● 2026-05-26 02:11:50
○ 2026-05-26 04:19:54
● 2026-05-26 07:56:22
○ 2026-05-27 00:02:14
○ 2026-06-08 22:57:44
● 2026-06-11 20:07:08
○ 2026-06-11 22:16:42
○ 2026-06-15 23:58:04
● 2026-06-26 11:54:08
● 2026-06-26 11:54:10

●A3.170.42.1212026-02-18 → 2026-06-26 · 67 obs

●A3.170.42.42026-02-18 → 2026-06-26 · 67 obs

●A3.170.42.942026-02-18 → 2026-06-26 · 67 obs

○A99.84.234.1262026-05-11 → 2026-05-11 · 4 obs

○ 2026-04-29 08:30:12
● 2026-05-11 10:29:54
○ 2026-05-11 14:15:44
○ 2026-06-26 11:54:10

○A99.84.234.542026-05-11 → 2026-05-11 · 4 obs

○ 2026-04-29 08:30:12
● 2026-05-11 10:29:54
○ 2026-05-11 14:15:44
○ 2026-06-26 11:54:10

○A99.84.234.642026-05-11 → 2026-05-11 · 4 obs

○ 2026-04-29 08:30:12
● 2026-05-11 10:29:54
○ 2026-05-11 14:15:44
○ 2026-06-26 11:54:10

○A99.84.234.772026-05-11 → 2026-05-11 · 4 obs

○ 2026-04-29 08:30:12
● 2026-05-11 10:29:54
○ 2026-05-11 14:15:44
○ 2026-06-26 11:54:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
io	a0.nic.io, a2.nic.io, b0.nic.io, c0.nic.io	-
repengineering.io	ns-275.awsdns-34.com, ns-1636.awsdns-12.co.uk, ns-1403.awsdns-47.org, ns-545.awsdns-04.net	-

✅ Authoritative Response

Server:205.251.197.123

NS records: ns-275.awsdns-34.com, ns-1636.awsdns-12.co.uk, ns-1403.awsdns-47.org, ns-545.awsdns-04.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for repengineering.io (unsigned zone)

⏱️ Timing

Total: 567ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`3.170.42.121, 3.170.42.118...`
NS	4	`ns-1403.awsdns-47.org, ns-1636.awsdns-12.co.uk...`
MX	1	`inbound-smtp.eu-west-1.amazonaws.com (pr`
TXT	1	`v=spf1 include:amazonses.com ~all`
SOA	1	`ns-1403.awsdns-47.org awsdns-hostmaster.`

Analysis

Hierarchy

repengineering.io serves as the parent of api.repengineering.io.

IP Addresses

repengineering.io resolves to four IP addresses: 3.170.42.4, 3.170.42.94, 3.170.42.118 and 3.170.42.121.

ns53.jp, mydatamanager.aws.pse.com, api.chrisgrice.com and two other host names share IP numbers with repengineering.io.

Name Servers

The authoritative name servers for repengineering.io are ns-275.awsdns-34.com, ns-545.awsdns-04.net, ns-1403.awsdns-47.org and ns-1636.awsdns-12.co.uk.

repengineering.io has at least partial name server overlap with other domains, such as crews.org, qpkagebwelxhxtm.com, cnntraveler.com and two others.

It is common to see these name servers used together with name servers ns-668.awsdns-19.net and ns-1446.awsdns-52.org.

ns-275.awsdns-34.com, ns-545.awsdns-04.net, ns-1403.awsdns-47.org and ns-1636.awsdns-12.co.uk all point to exactly two IP numbers each: ns-275.awsdns-34.com → 205.251.193.19 and 2600:9000:5301:1300::1; ns-545.awsdns-04.net → 205.251.194.33 and 2600:9000:5302:2100::1; ns-1403.awsdns-47.org → 205.251.197.123 and 2600:9000:5305:7b00::1; ns-1636.awsdns-12.co.uk → 205.251.198.100 and 2600:9000:5306:6400::1.

Mail Servers

Mail for repengineering.io is handled by a single mail server, inbound-smtp.eu-west-1.amazonaws.com.

repengineering.io uses an identical mail server configuration to several other domains — among them reactive.finance, firstincloud.com, dst.vistaprint.io and two more.

repengineering.io has at least partial mail server overlap with other domains such as ikea.com.sa, dolce-gusto.co.nz, tg3solutions.com and two more.

inbound-smtp.eu-west-1.amazonaws.com maps to three IP addresses — 18.200.203.69, 54.76.31.185 and 54.155.140.59.