`additionalinstructions.com`

DNSSEC	⚠️ Not signed
A	18.160.46.50^{🇺🇸 Amazon18.160.46.0/23}
		PTR	`server-18-160-46-50.iad55.r.cloudfront.net`
A	18.160.46.56^{🇺🇸 Amazon18.160.46.0/23}
A	18.160.46.70^{🇺🇸 Amazon18.160.46.0/23}
A	18.160.46.117^{🇺🇸 Amazon18.160.46.0/23}
NS	`ns-269.awsdns-33.com` ⭐
		A	2600:9000:5301:d00::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-269.awsdns-33.com`
		A	205.251.193.13^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-269.awsdns-33.com`
NS	`ns-1448.awsdns-53.org`
		A	2600:9000:5305:a800::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1448.awsdns-53.org`
		A	205.251.197.168^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1448.awsdns-53.org`
NS	`ns-1857.awsdns-40.co.uk`
		A	2600:9000:5307:4100::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1857.awsdns-40.co.uk`
		A	205.251.199.65^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1857.awsdns-40.co.uk`
NS	`ns-693.awsdns-22.net`
		A	2600:9000:5302:b500::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-693.awsdns-22.net`
		A	205.251.194.181^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-693.awsdns-22.net`
MX	`inbound-smtp.us-east-1.amazonaws.com` ⭐
		A	3.211.210.226^{🇺🇸 Amazon3.208.0.0/12 EC2 IAD prefix}
			PTR	`ec2-3-211-210-226.compute-1.amazonaws.com`
		A	44.206.9.87^{🇺🇸 Amazon44.192.0.0/11 EC2 IAD prefix}
			PTR	`ec2-44-206-9-87.compute-1.amazonaws.com`
		A	44.210.166.32^{🇺🇸 Amazon44.192.0.0/11 EC2 IAD prefix}
			PTR	`ec2-44-210-166-32.compute-1.amazonaws.com`
		A	54.164.173.191^{🇺🇸 Amazon54.164.0.0/15 EC2 IAD prefix}
			PTR	`ec2-54-164-173-191.compute-1.amazonaws.com`
		A	54.197.5.236^{🇺🇸 Amazon54.196.0.0/15 EC2 IAD 54.196.0.0/15}
			PTR	`ec2-54-197-5-236.compute-1.amazonaws.com`
SOA	`ns-269.awsdns-33.com`awsdns-hostmaster@amazon.com serial=1

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1771291435

Same first word

additionalinstructions.com

DNS History

29 records (9 active, 20 former)

●NSns-1448.awsdns-53.org2026-02-19 → 2026-03-19 · 2 obs

● 2026-02-19 03:05:52
● 2026-03-19 08:15:14

●NSns-1857.awsdns-40.co.uk2026-02-19 → 2026-03-19 · 2 obs

● 2026-02-19 03:05:52
● 2026-03-19 08:15:14

●NSns-269.awsdns-33.com2026-02-19 → 2026-03-19 · 2 obs

● 2026-02-19 03:05:52
● 2026-03-19 08:15:14

●NSns-693.awsdns-22.net2026-02-19 → 2026-03-19 · 2 obs

● 2026-02-19 03:05:52
● 2026-03-19 08:15:14

●MXinbound-smtp.us-east-1.amazonaws.com2026-02-19 → 2026-03-19 · 2 obs

● 2026-02-19 03:05:52
● 2026-03-19 08:15:14

○A13.35.107.192026-03-09 → 2026-03-09 · 4 obs

○ 2026-03-08 16:55:20
● 2026-03-09 01:09:42
○ 2026-03-09 04:27:52
○ 2026-03-19 08:15:14

○A13.35.107.422026-03-09 → 2026-03-09 · 4 obs

○ 2026-03-08 16:55:20
● 2026-03-09 01:09:42
○ 2026-03-09 04:27:52
○ 2026-03-19 08:15:14

○A13.35.107.482026-03-09 → 2026-03-09 · 4 obs

○ 2026-03-08 16:55:20
● 2026-03-09 01:09:42
○ 2026-03-09 04:27:52
○ 2026-03-19 08:15:14

○A13.35.107.892026-03-09 → 2026-03-09 · 4 obs

○ 2026-03-08 16:55:20
● 2026-03-09 01:09:42
○ 2026-03-09 04:27:52
○ 2026-03-19 08:15:14

●A18.160.46.1172026-02-19 → 2026-03-19 · 27 obs

○ 2026-02-19 03:05:52
● 2026-02-19 06:08:20
● 2026-02-24 04:37:22
○ 2026-02-27 20:43:38
○ 2026-03-10 21:20:10
● 2026-03-11 00:12:28
● 2026-03-11 11:38:54
○ 2026-03-12 06:33:16
● 2026-03-12 16:36:56
○ 2026-03-13 12:08:00
● 2026-03-13 23:43:12
○ 2026-03-14 01:20:38
○ 2026-03-14 16:14:56
● 2026-03-15 03:49:26
○ 2026-03-15 11:41:36
○ 2026-03-15 15:30:34
● 2026-03-16 00:12:40
○ 2026-03-16 04:28:14
● 2026-03-16 11:01:38
○ 2026-03-17 05:29:38
○ 2026-03-17 12:42:14
● 2026-03-17 16:51:50
● 2026-03-18 00:12:18
○ 2026-03-18 03:08:14
○ 2026-03-19 05:19:26
● 2026-03-19 08:15:12
● 2026-03-19 08:15:14

●A18.160.46.502026-02-19 → 2026-03-19 · 27 obs

●A18.160.46.562026-02-19 → 2026-03-19 · 27 obs

●A18.160.46.702026-02-19 → 2026-03-19 · 27 obs

○A18.165.242.352026-02-28 → 2026-03-19 · 42 obs

○ 2026-02-27 20:43:38
● 2026-02-28 00:47:36
● 2026-02-28 09:27:00
○ 2026-02-28 17:03:52
● 2026-03-01 09:31:10
○ 2026-03-01 10:46:28
○ 2026-03-04 06:37:42
● 2026-03-05 01:12:52
● 2026-03-05 07:04:42
○ 2026-03-06 15:12:00
○ 2026-03-08 05:54:46
● 2026-03-08 16:55:20
○ 2026-03-09 01:09:42
● 2026-03-09 04:27:52
● 2026-03-10 21:20:10
○ 2026-03-11 00:12:28
○ 2026-03-12 16:36:56
● 2026-03-13 12:08:00
○ 2026-03-13 23:43:12
● 2026-03-14 01:20:38
● 2026-03-14 10:28:34
○ 2026-03-14 11:44:36
○ 2026-03-14 12:56:20
● 2026-03-14 14:21:22
● 2026-03-14 16:14:56
○ 2026-03-15 03:49:26
● 2026-03-15 11:41:36
● 2026-03-15 15:30:34
○ 2026-03-16 00:12:40
● 2026-03-16 04:28:14
○ 2026-03-16 11:01:38
● 2026-03-17 05:29:38
○ 2026-03-17 12:42:14
○ 2026-03-18 00:12:18
● 2026-03-18 03:08:14
● 2026-03-18 13:22:20
○ 2026-03-18 19:45:52
● 2026-03-18 21:12:46
○ 2026-03-19 00:00:06
● 2026-03-19 05:19:26
○ 2026-03-19 08:15:12
○ 2026-03-19 08:15:14

○A18.165.242.482026-02-28 → 2026-03-19 · 42 obs

○A18.165.242.752026-02-28 → 2026-03-19 · 42 obs

○A18.165.242.882026-02-28 → 2026-03-19 · 42 obs

○A18.238.109.152026-02-19 → 2026-02-19 · 3 obs

● 2026-02-19 03:05:52
○ 2026-02-19 06:08:20
○ 2026-03-19 08:15:14

○A18.238.109.252026-02-19 → 2026-02-19 · 3 obs

● 2026-02-19 03:05:52
○ 2026-02-19 06:08:20
○ 2026-03-19 08:15:14

○A18.238.109.432026-02-19 → 2026-02-19 · 3 obs

● 2026-02-19 03:05:52
○ 2026-02-19 06:08:20
○ 2026-03-19 08:15:14

○A18.238.109.932026-02-19 → 2026-02-19 · 3 obs

● 2026-02-19 03:05:52
○ 2026-02-19 06:08:20
○ 2026-03-19 08:15:14

○A3.169.231.1152026-02-27 → 2026-03-19 · 27 obs

○ 2026-02-24 04:37:22
● 2026-02-27 20:43:38
○ 2026-02-28 00:47:36
○ 2026-02-28 09:27:00
● 2026-02-28 17:03:52
○ 2026-03-01 09:31:10
● 2026-03-01 10:46:28
● 2026-03-04 06:37:42
○ 2026-03-05 01:12:52
○ 2026-03-05 07:04:42
● 2026-03-06 15:12:00
○ 2026-03-07 21:31:46
○ 2026-03-08 00:11:12
● 2026-03-08 05:54:46
○ 2026-03-08 16:55:20
○ 2026-03-11 11:38:54
● 2026-03-12 06:33:16
○ 2026-03-12 16:36:56
○ 2026-03-17 05:29:38
● 2026-03-17 12:42:14
○ 2026-03-17 16:51:50
○ 2026-03-18 13:22:20
● 2026-03-18 19:45:52
○ 2026-03-18 21:12:46
● 2026-03-19 00:00:06
○ 2026-03-19 05:19:26
○ 2026-03-19 08:15:14

○A3.169.231.1232026-02-27 → 2026-03-19 · 27 obs

○A3.169.231.442026-02-27 → 2026-03-19 · 27 obs

○A3.169.231.822026-02-27 → 2026-03-19 · 27 obs

○A3.171.117.102026-03-07 → 2026-03-14 · 9 obs

○ 2026-03-06 15:12:00
● 2026-03-07 21:31:46
● 2026-03-08 00:11:12
○ 2026-03-08 05:54:46
○ 2026-03-14 10:28:34
● 2026-03-14 11:44:36
● 2026-03-14 12:56:20
○ 2026-03-14 14:21:22
○ 2026-03-19 08:15:14

○A3.171.117.1032026-03-07 → 2026-03-14 · 9 obs

○A3.171.117.622026-03-07 → 2026-03-14 · 9 obs

○A3.171.117.872026-03-07 → 2026-03-14 · 9 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
additionalinstructions.com	ns-693.awsdns-22.net, ns-269.awsdns-33.com, ns-1857.awsdns-40.co.uk, ns-1448.awsdns-53.org	1 record

✅ Authoritative Response

Server: 205.251.194.181

NS records: ns-693.awsdns-22.net, ns-269.awsdns-33.com, ns-1857.awsdns-40.co.uk, ns-1448.awsdns-53.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for additionalinstructions.com (unsigned zone)

⏱️ Timing

Total: 618ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`18.160.46.70, 18.160.46.56...`
NS	4	`ns-1448.awsdns-53.org, ns-1857.awsdns-40.co.uk...`
MX	1	`inbound-smtp.us-east-1.amazonaws.com (pr`
SOA	1	`ns-269.awsdns-33.com awsdns-hostmaster.a`

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns-269.awsdns-33.com)

Analysis

IP Addresses

additionalinstructions.com resolves to four IPs: 18.160.46.50, 18.160.46.56, 18.160.46.70 and 18.160.46.117.

Other host names, for instance d18sq84xhiqgd0.cloudfront.net, data-automation.com, schemas.file.t-dtap.photoconnector.net, obi.tec.br and eastmancoatings.biz share IP numbers with additionalinstructions.com.

Name Servers

additionalinstructions.com is delegated to four name servers: ns-269.awsdns-33.com, ns-693.awsdns-22.net, ns-1448.awsdns-53.org and ns-1857.awsdns-40.co.uk.

additionalinstructions.com shares some name servers with other domains, for example xpure-systems.com, jbjconstructiongroup.com, opelbrothers.net, michaelcoadymd.com and webportalapp.com.

These name servers are commonly paired with ns-1900.awsdns-45.co.uk, ns-24.awsdns-03.com, ns-981.awsdns-58.net, ns-1396.awsdns-46.org, ns-383.awsdns-47.com, ns-1919.awsdns-47.co.uk and ns-1847.awsdns-38.co.uk.

Host names with two IP numbers

Two IPs per host:

ns-269.awsdns-33.com points to 2600:9000:5301:d00::1 and 205.251.193.13

ns-693.awsdns-22.net points to 2600:9000:5302:b500::1 and 205.251.194.181

ns-1448.awsdns-53.org points to 2600:9000:5305:a800::1 and 205.251.197.168

ns-1857.awsdns-40.co.uk points to 2600:9000:5307:4100::1 and 205.251.199.65

Mail Servers

additionalinstructions.com is handled by a single mail server, inbound-smtp.us-east-1.amazonaws.com.

additionalinstructions.com shares the mail server setup with other domains, for example su-portal-internal.com, wopax.net, designersam.com, awseducate.com and iamaguchi.net.

additionalinstructions.com shares some mail servers with other domains, at least partially; for instance ulfirefightersafety.org, kiriak.com, powerlinx.atlassian.net, attacheonline.atlassian.net and venmoinc.atlassian.net.

these mail servers are commonly used alongside the mail servers inbound-smtp.us-west-2.amazonaws.com.

The host name inbound-smtp.us-east-1.amazonaws.com points to five IP numbers: 3.211.210.226, 44.206.9.87, 44.210.166.32, 54.164.173.191 and 54.197.5.236.

additionalinstructions.com - robtex.com