`replycorp.io`

DNSSEC	⚠️ Not signed
A	3.167.37.21^{🇺🇸 Amazon3.167.32.0/21}
		PTR	`server-3-167-37-21.iad61.r.cloudfront.net`
A	3.167.37.80^{🇺🇸 Amazon3.167.32.0/21}
A	3.167.37.108^{🇺🇸 Amazon3.167.32.0/21}
A	3.167.37.119^{🇺🇸 Amazon3.167.32.0/21}
NS	`ns-460.awsdns-57.com` ⭐
		A	2600:9000:5301:cc00::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-460.awsdns-57.com`
		A	205.251.193.204^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-460.awsdns-57.com`
NS	`ns-1353.awsdns-41.org`
		A	2600:9000:5305:4900::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1353.awsdns-41.org`
		A	205.251.197.73^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1353.awsdns-41.org`
NS	`ns-1809.awsdns-34.co.uk`
		A	2600:9000:5307:1100::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1809.awsdns-34.co.uk`
		A	205.251.199.17^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1809.awsdns-34.co.uk`
NS	`ns-549.awsdns-04.net`
		A	2600:9000:5302:2500::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-549.awsdns-04.net`
		A	205.251.194.37^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-549.awsdns-04.net`
MX	`smtp.google.com` ⭐
		A	2607:f8b0:4023:c06::1a^{🇺🇸 Google2607:f8b0::/32}
			PTR	`dz-in-f26.1e100.net`
		A	2607:f8b0:4023:c06::1b^{🇺🇸 Google2607:f8b0::/32}
			PTR	`dz-in-f27.1e100.net`
		A	2607:f8b0:4023:c0b::1a^{🇺🇸 Google2607:f8b0::/32}
			PTR	`dd-in-f26.1e100.net`
		A	2607:f8b0:4023:c0b::1b^{🇺🇸 Google2607:f8b0::/32}
			PTR	`dd-in-f27.1e100.net`
		A	142.250.101.26^{🇺🇸 Google142.250.101.0/24}
			PTR	`dz-in-f26.1e100.net`
		A	142.250.101.27^{🇺🇸 Google142.250.101.0/24}
			PTR	`dz-in-f27.1e100.net`
		A	142.250.141.26^{🇺🇸 Google142.250.141.0/24}
			PTR	`dd-in-f26.1e100.net`
		A	142.250.141.27^{🇺🇸 Google142.250.141.0/24}
			PTR	`dd-in-f27.1e100.net`
		A	142.251.2.26^{🇺🇸 Google142.251.2.0/24}
			PTR	`dl-in-f26.1e100.net`
TXT	`google-site-verification=YXsc2f9ZUgSwf6F_oXh3OQ1BYuU9pAFSYlk6ezq7WZo`
SOA	`ns-460.awsdns-57.com`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=1773494468

Same first word

replycorp.io

DNS History

29 records (9 active, 20 former)

●NSns-1353.awsdns-41.org2026-03-01 → 2026-03-23 · 2 obs

● 2026-03-01 03:34:38
● 2026-03-23 09:59:54

●NSns-1809.awsdns-34.co.uk2026-03-01 → 2026-03-23 · 2 obs

● 2026-03-01 03:34:38
● 2026-03-23 09:59:54

●NSns-460.awsdns-57.com2026-03-01 → 2026-03-23 · 2 obs

● 2026-03-01 03:34:38
● 2026-03-23 09:59:54

●NSns-549.awsdns-04.net2026-03-01 → 2026-03-23 · 2 obs

● 2026-03-01 03:34:38
● 2026-03-23 09:59:54

●MXsmtp.google.com2026-03-01 → 2026-03-23 · 2 obs

● 2026-03-01 03:34:38
● 2026-03-23 09:59:54

○A13.226.144.1002026-03-19 → 2026-03-21 · 9 obs

○ 2026-03-19 09:44:38
● 2026-03-19 13:14:24
● 2026-03-19 15:42:36
○ 2026-03-19 22:07:26
○ 2026-03-20 10:59:12
● 2026-03-21 02:30:20
● 2026-03-21 03:06:30
○ 2026-03-22 01:04:58
○ 2026-03-23 09:59:54

○A13.226.144.1012026-03-19 → 2026-03-21 · 9 obs

○A13.226.144.122026-03-19 → 2026-03-21 · 9 obs

○A13.226.144.1202026-03-19 → 2026-03-21 · 9 obs

○A13.249.182.1242026-03-01 → 2026-03-20 · 69 obs

● 2026-03-01 03:34:38
● 2026-03-01 07:17:02
○ 2026-03-01 08:41:00
○ 2026-03-01 10:34:32
● 2026-03-01 11:27:20
● 2026-03-01 14:21:18
○ 2026-03-01 17:36:04
● 2026-03-01 20:48:50
● 2026-03-02 20:18:52
○ 2026-03-03 00:17:50
○ 2026-03-03 11:15:50
● 2026-03-03 17:11:10
○ 2026-03-04 01:05:08
● 2026-03-04 06:45:24
○ 2026-03-04 07:23:36
○ 2026-03-04 14:05:32
● 2026-03-04 16:11:06
● 2026-03-05 01:17:22
○ 2026-03-05 06:24:52
● 2026-03-05 08:36:54
○ 2026-03-06 02:51:38
○ 2026-03-08 06:11:22
● 2026-03-08 11:39:22
○ 2026-03-08 16:47:52
○ 2026-03-09 14:45:48
● 2026-03-09 15:47:04
● 2026-03-09 16:20:00
○ 2026-03-09 18:51:36
○ 2026-03-10 02:45:22
● 2026-03-10 18:50:34
○ 2026-03-10 21:08:48
○ 2026-03-12 05:52:06
● 2026-03-12 14:38:04
○ 2026-03-12 19:38:44
○ 2026-03-13 02:25:48
● 2026-03-13 07:01:42
○ 2026-03-13 09:01:50
○ 2026-03-13 13:44:10
● 2026-03-13 21:52:30
● 2026-03-13 23:47:30
○ 2026-03-14 01:20:08
○ 2026-03-14 12:07:12
● 2026-03-14 12:48:50
○ 2026-03-14 13:42:22
○ 2026-03-16 01:47:20
● 2026-03-16 09:02:06
○ 2026-03-16 23:15:26
○ 2026-03-17 05:10:02
● 2026-03-17 06:30:16
○ 2026-03-17 09:57:24
● 2026-03-17 21:43:56
○ 2026-03-17 23:47:56
○ 2026-03-18 04:55:52
● 2026-03-18 07:22:50
○ 2026-03-18 13:09:46
● 2026-03-18 17:26:30
○ 2026-03-18 20:43:06
○ 2026-03-19 01:18:48
● 2026-03-19 03:05:50
○ 2026-03-19 09:44:38
○ 2026-03-19 15:42:36
● 2026-03-19 22:07:26
○ 2026-03-19 23:24:38
● 2026-03-20 00:57:12
○ 2026-03-20 02:54:42
○ 2026-03-20 07:16:56
● 2026-03-20 10:59:12
○ 2026-03-21 02:30:20
○ 2026-03-23 09:59:54

○A13.249.182.22026-03-01 → 2026-03-20 · 69 obs

○A13.249.182.292026-03-01 → 2026-03-20 · 69 obs

○A13.249.182.972026-03-01 → 2026-03-20 · 69 obs

○A18.164.96.412026-03-07 → 2026-03-14 · 7 obs

○ 2026-03-07 20:54:44
● 2026-03-07 22:09:02
○ 2026-03-08 01:20:26
○ 2026-03-14 14:47:02
● 2026-03-14 15:25:56
○ 2026-03-14 17:11:24
○ 2026-03-23 09:59:54

○A18.164.96.712026-03-07 → 2026-03-14 · 7 obs

○ 2026-03-07 20:54:44
● 2026-03-07 22:09:02
○ 2026-03-08 01:20:26
○ 2026-03-14 14:47:02
● 2026-03-14 15:25:56
○ 2026-03-14 17:11:24
○ 2026-03-23 09:59:54

○A18.164.96.772026-03-07 → 2026-03-14 · 7 obs

○ 2026-03-07 20:54:44
● 2026-03-07 22:09:02
○ 2026-03-08 01:20:26
○ 2026-03-14 14:47:02
● 2026-03-14 15:25:56
○ 2026-03-14 17:11:24
○ 2026-03-23 09:59:54

○A18.164.96.862026-03-07 → 2026-03-14 · 7 obs

○ 2026-03-07 20:54:44
● 2026-03-07 22:09:02
○ 2026-03-08 01:20:26
○ 2026-03-14 14:47:02
● 2026-03-14 15:25:56
○ 2026-03-14 17:11:24
○ 2026-03-23 09:59:54

○A18.165.140.532026-03-22 → 2026-03-23 · 7 obs

○ 2026-03-22 01:45:30
● 2026-03-22 15:52:44
● 2026-03-23 02:33:00
○ 2026-03-23 03:23:24
● 2026-03-23 04:36:16
○ 2026-03-23 09:59:52
○ 2026-03-23 09:59:54

○A18.165.140.762026-03-22 → 2026-03-23 · 7 obs

○ 2026-03-22 01:45:30
● 2026-03-22 15:52:44
● 2026-03-23 02:33:00
○ 2026-03-23 03:23:24
● 2026-03-23 04:36:16
○ 2026-03-23 09:59:52
○ 2026-03-23 09:59:54

○A18.165.140.922026-03-22 → 2026-03-23 · 7 obs

○ 2026-03-22 01:45:30
● 2026-03-22 15:52:44
● 2026-03-23 02:33:00
○ 2026-03-23 03:23:24
● 2026-03-23 04:36:16
○ 2026-03-23 09:59:52
○ 2026-03-23 09:59:54

○A18.165.140.952026-03-22 → 2026-03-23 · 7 obs

○ 2026-03-22 01:45:30
● 2026-03-22 15:52:44
● 2026-03-23 02:33:00
○ 2026-03-23 03:23:24
● 2026-03-23 04:36:16
○ 2026-03-23 09:59:52
○ 2026-03-23 09:59:54

○A18.245.218.1022026-03-01 → 2026-03-23 · 93 obs

○ 2026-03-01 07:17:02
● 2026-03-01 08:41:00
○ 2026-03-01 10:34:32
○ 2026-03-01 14:21:18
● 2026-03-01 17:36:04
○ 2026-03-01 20:48:50
○ 2026-03-03 01:20:04
● 2026-03-03 11:15:50
○ 2026-03-03 17:11:10
● 2026-03-04 01:05:08
○ 2026-03-04 06:45:24
○ 2026-03-04 07:23:36
● 2026-03-04 11:15:18
○ 2026-03-04 12:07:16
○ 2026-03-05 01:17:22
● 2026-03-05 06:24:52
○ 2026-03-05 08:36:54
● 2026-03-06 02:51:38
● 2026-03-06 03:35:34
○ 2026-03-06 10:24:28
● 2026-03-06 13:32:12
○ 2026-03-06 14:56:08
○ 2026-03-07 01:43:22
● 2026-03-07 03:12:24
○ 2026-03-07 18:22:32
● 2026-03-07 20:54:44
○ 2026-03-07 22:09:02
● 2026-03-08 01:20:26
● 2026-03-08 06:11:22
○ 2026-03-08 11:39:22
● 2026-03-08 16:47:52
○ 2026-03-08 20:33:52
● 2026-03-08 23:21:28
● 2026-03-09 05:47:26
○ 2026-03-09 07:25:00
○ 2026-03-09 08:57:08
● 2026-03-09 14:45:48
○ 2026-03-09 15:47:04
○ 2026-03-09 18:51:36
● 2026-03-10 02:45:22
○ 2026-03-10 18:50:34
● 2026-03-10 21:08:48
● 2026-03-11 03:37:54
○ 2026-03-11 07:00:20
● 2026-03-11 09:59:42
● 2026-03-12 05:52:06
○ 2026-03-12 14:38:04
● 2026-03-12 19:38:44
● 2026-03-13 02:25:48
○ 2026-03-13 07:01:42
● 2026-03-13 09:01:50
● 2026-03-13 13:44:10
○ 2026-03-13 21:52:30
○ 2026-03-13 23:47:30
● 2026-03-14 01:20:08
● 2026-03-14 12:07:12
○ 2026-03-14 12:48:50
● 2026-03-14 13:42:22
● 2026-03-14 14:47:02
○ 2026-03-14 15:25:56
● 2026-03-14 17:11:24
● 2026-03-14 18:46:10
○ 2026-03-14 19:33:28
● 2026-03-14 21:39:30
● 2026-03-16 01:47:20
○ 2026-03-16 09:02:06
● 2026-03-16 23:15:26
● 2026-03-17 05:10:02
○ 2026-03-17 06:30:16
● 2026-03-17 09:57:24
○ 2026-03-17 21:43:56
● 2026-03-17 23:47:56
● 2026-03-18 04:55:52
○ 2026-03-18 07:22:50
● 2026-03-18 13:09:46
○ 2026-03-18 17:26:30
○ 2026-03-18 22:04:24
● 2026-03-19 01:18:48
○ 2026-03-19 03:05:50
○ 2026-03-19 22:07:26
● 2026-03-19 23:24:38
○ 2026-03-20 00:57:12
● 2026-03-20 02:54:42
● 2026-03-20 07:16:56
○ 2026-03-20 10:59:12
○ 2026-03-21 03:06:30
● 2026-03-22 01:04:58
● 2026-03-22 01:45:30
○ 2026-03-22 15:52:44
○ 2026-03-23 02:33:00
● 2026-03-23 03:23:24
○ 2026-03-23 04:36:16
○ 2026-03-23 09:59:54

○A18.245.218.1102026-03-01 → 2026-03-23 · 93 obs

○A18.245.218.402026-03-01 → 2026-03-23 · 93 obs

○A18.245.218.62026-03-01 → 2026-03-23 · 93 obs

●A3.167.37.1082026-03-01 → 2026-03-23 · 47 obs

○ 2026-03-01 08:41:00
● 2026-03-01 10:34:32
○ 2026-03-01 11:27:20
○ 2026-03-02 20:18:52
● 2026-03-03 00:17:50
● 2026-03-03 01:20:04
○ 2026-03-03 11:15:50
○ 2026-03-04 06:45:24
● 2026-03-04 07:23:36
○ 2026-03-04 11:15:18
● 2026-03-04 12:07:16
● 2026-03-04 14:05:32
○ 2026-03-04 16:11:06
○ 2026-03-06 03:35:34
● 2026-03-06 10:24:28
○ 2026-03-06 13:32:12
● 2026-03-06 14:56:08
● 2026-03-07 01:43:22
○ 2026-03-07 03:12:24
● 2026-03-07 18:22:32
○ 2026-03-07 20:54:44
○ 2026-03-08 16:47:52
● 2026-03-08 20:33:52
○ 2026-03-08 23:21:28
○ 2026-03-09 05:47:26
● 2026-03-09 07:25:00
● 2026-03-09 08:57:08
○ 2026-03-09 14:45:48
○ 2026-03-09 16:20:00
● 2026-03-09 18:51:36
○ 2026-03-10 02:45:22
○ 2026-03-11 03:37:54
● 2026-03-11 07:00:20
○ 2026-03-11 09:59:42
○ 2026-03-14 18:46:10
● 2026-03-14 19:33:28
○ 2026-03-14 21:39:30
○ 2026-03-18 17:26:30
● 2026-03-18 20:43:06
● 2026-03-18 22:04:24
○ 2026-03-19 01:18:48
○ 2026-03-19 03:05:50
● 2026-03-19 09:44:38
○ 2026-03-19 13:14:24
○ 2026-03-23 04:36:16
● 2026-03-23 09:59:52
● 2026-03-23 09:59:54

●A3.167.37.1192026-03-01 → 2026-03-23 · 47 obs

●A3.167.37.212026-03-01 → 2026-03-23 · 47 obs

●A3.167.37.802026-03-01 → 2026-03-23 · 47 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
io	c0.nic.io, a2.nic.io, a0.nic.io, b0.nic.io	-
replycorp.io	ns-1353.awsdns-41.org, ns-460.awsdns-57.com, ns-549.awsdns-04.net, ns-1809.awsdns-34.co.uk	-

✅ Authoritative Response

Server:205.251.194.37

NS records: ns-1353.awsdns-41.org, ns-460.awsdns-57.com, ns-549.awsdns-04.net, ns-1809.awsdns-34.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for replycorp.io (unsigned zone)

⏱️ Timing

Total: 2429ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`3.167.37.108, 3.167.37.119...`
NS	4	`ns-1353.awsdns-41.org, ns-1809.awsdns-34.co.uk...`
MX	1	`smtp.google.com (pri: 1)`
TXT	1	`google-site-verification=YXsc2f9ZUgSwf6F`
SOA	1	`ns-460.awsdns-57.com awsdns-hostmaster.a`

Analysis

IP Addresses

replycorp.io refers to four IP numbers: 3.167.37.21, 3.167.37.80, 3.167.37.108 and 3.167.37.119.

Other host names, for instance texthelp.org, d2jm0uk6tg5ytd.cloudfront.net, d15leotkieuptk.cloudfront.net, www.benchomatic.com and hardwarefair.de share IP numbers with replycorp.io.

Name Servers

replycorp.io delegates to four name servers: ns-460.awsdns-57.com, ns-549.awsdns-04.net, ns-1353.awsdns-41.org and ns-1809.awsdns-34.co.uk.

replycorp.io at least partially shares name servers with other domains, including emptynesteradvice.com, startwithplate.com, metrowalkbytollbrothers.com, d3u5vc43tkz8cu.cloudfront.net and nowappstech.com.

These name servers are commonly used with ns-1291.awsdns-33.org, ns-969.awsdns-57.net, ns-1625.awsdns-11.co.uk, ns-920.awsdns-51.net, ns1.tukios.net, ns2.tukios.net, ns-1498.awsdns-59.org and ns-1817.awsdns-35.co.uk.

Host names with two IP numbers: ns-460.awsdns-57.com points to 2600:9000:5301:cc00::1 and 205.251.193.204; ns-549.awsdns-04.net points to 2600:9000:5302:2500::1 and 205.251.194.37; ns-1353.awsdns-41.org points to 2600:9000:5305:4900::1 and 205.251.197.73; ns-1809.awsdns-34.co.uk points to 2600:9000:5307:1100::1 and 205.251.199.17.

Mail Servers

A single mail server handles replycorp.io, smtp.google.com.

replycorp.io shares the same mail server setup as other domains, for instance indyexteriorservices.com, cz-forum.no, orbina.ai, forwrd.com and avtodoria.com.

replycorp.io shares at least some mail servers with other domains, for example universityeducation.biz, explorebaduk.com, sqdra.com, immobiliaremondocasa.com and seriedesign.com.br.

These mail servers are commonly used with aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.

Hostname smtp.google.com points to nine IP numbers: 2607:f8b0:4023:c06::1a, 2607:f8b0:4023:c06::1b, 2607:f8b0:4023:c0b::1a, 2607:f8b0:4023:c0b::1b, 142.250.101.26, 142.250.101.27, 142.250.141.26, 142.250.141.27 and 142.251.2.26.

replycorp.io - robtex.com

replycorp.io

io

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`replycorp.io`

`io`