pfcomputing.com - dns.ninja

`pfcomputing.com`

DNSSEC	⚠️ Not signed
A	3.164.206.7^{🇺🇸 Amazon3.164.206.0/23}
		PTR	`server-3-164-206-7.hel51.r.cloudfront.net`
A	3.164.206.19^{🇺🇸 Amazon3.164.206.0/23}
A	3.164.206.31^{🇺🇸 Amazon3.164.206.0/23}
A	3.164.206.52^{🇺🇸 Amazon3.164.206.0/23}
NS	`ns-1806.awsdns-33.co.uk` ⭐
		A	2600:9000:5307:e00::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1806.awsdns-33.co.uk`
		A	205.251.199.14^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1806.awsdns-33.co.uk`
NS	`ns-1478.awsdns-56.org`
		A	2600:9000:5305:c600::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1478.awsdns-56.org`
		A	205.251.197.198^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1478.awsdns-56.org`
NS	`ns-452.awsdns-56.com`
		A	2600:9000:5301:c400::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-452.awsdns-56.com`
		A	205.251.193.196^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-452.awsdns-56.com`
NS	`ns-937.awsdns-53.net`
		A	2600:9000:5303:a900::1^{🇺🇸 Amazon2600:9000:5303::/48 - CloudFront}
			PTR	`ns-937.awsdns-53.net`
		A	205.251.195.169^{🇺🇸 Amazon205.251.195.0/24 prefix}
			PTR	`ns-937.awsdns-53.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`
TXT	`v=spf1 include:amazonses.com include:mail.zendesk.com ~all`
SOA	`ns-1806.awsdns-33.co.uk`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=1786035674

Same first word

pfcomputing.com

pfcomputing.ch

DNS History

105 records (9 active, 96 former)

●NSns-1478.awsdns-56.org2026-02-25 → 2026-08-06 · 2 obs

● 2026-02-25 07:59:06
● 2026-08-06 17:28:48

●NSns-1806.awsdns-33.co.uk2026-02-25 → 2026-08-06 · 2 obs

● 2026-02-25 07:59:06
● 2026-08-06 17:28:48

●NSns-452.awsdns-56.com2026-02-25 → 2026-08-06 · 2 obs

● 2026-02-25 07:59:06
● 2026-08-06 17:28:48

●NSns-937.awsdns-53.net2026-02-25 → 2026-08-06 · 2 obs

● 2026-02-25 07:59:06
● 2026-08-06 17:28:48

●MXinbound-smtp.us-east-1.amazonaws.com2026-02-25 → 2026-08-06 · 2 obs

● 2026-02-25 07:59:06
● 2026-08-06 17:28:48

○A108.139.113.1262026-04-08 → 2026-06-07 · 16 obs

○ 2026-04-07 20:49:30
● 2026-04-08 15:20:26
○ 2026-04-08 22:18:48
● 2026-04-08 22:53:34
○ 2026-04-09 02:24:24
○ 2026-04-16 12:23:48
● 2026-04-16 21:31:56
● 2026-04-17 22:33:36
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● 2026-04-18 21:02:40
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○ 2026-06-07 11:37:52
● 2026-06-07 13:57:38
○ 2026-06-07 21:20:32
○ 2026-08-06 17:28:48

○A108.139.113.222026-04-08 → 2026-06-07 · 16 obs

○A108.139.113.542026-04-08 → 2026-06-07 · 16 obs

○A108.139.113.562026-04-08 → 2026-06-07 · 16 obs

○A108.156.144.1162026-05-27 → 2026-06-06 · 17 obs

○ 2026-05-20 23:59:48
● 2026-05-27 09:05:02
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● 2026-06-06 14:57:24
● 2026-06-06 15:33:08
○ 2026-06-06 22:16:02
○ 2026-08-06 17:28:48

○A108.156.144.162026-05-27 → 2026-06-06 · 17 obs

○A108.156.144.372026-05-27 → 2026-06-06 · 17 obs

○A108.156.144.552026-05-27 → 2026-06-06 · 17 obs

○A108.156.91.482026-05-19 → 2026-05-28 · 18 obs

○ 2026-05-19 05:57:44
● 2026-05-19 08:41:34
● 2026-05-19 09:24:10
○ 2026-05-19 10:03:24
● 2026-05-19 10:57:30
○ 2026-05-19 13:02:40
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● 2026-05-19 18:00:16
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● 2026-05-19 22:03:56
● 2026-05-20 06:54:08
○ 2026-05-20 09:39:04
● 2026-05-20 12:53:48
○ 2026-05-20 16:48:16
○ 2026-05-28 06:45:22
● 2026-05-28 09:04:06
○ 2026-05-28 10:49:56
○ 2026-08-06 17:28:48

○A108.156.91.692026-05-19 → 2026-05-28 · 18 obs

○A108.156.91.702026-05-19 → 2026-05-28 · 18 obs

○A108.156.91.892026-05-19 → 2026-05-28 · 18 obs

○A108.158.122.232026-04-01 → 2026-07-03 · 17 obs

○ 2026-03-31 16:16:02
● 2026-04-01 16:22:46
● 2026-04-02 02:05:50
○ 2026-04-02 03:08:14
○ 2026-04-11 14:11:34
● 2026-04-11 19:33:42
○ 2026-04-11 21:49:44
○ 2026-04-16 10:47:48
● 2026-04-16 12:23:48
○ 2026-04-16 21:31:56
● 2026-07-01 21:12:10
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● 2026-07-02 23:24:04
○ 2026-07-03 01:35:08
● 2026-07-03 09:50:32
○ 2026-07-03 13:29:54
○ 2026-08-06 17:28:48

○A108.158.122.62026-04-01 → 2026-07-03 · 17 obs

○A108.158.122.782026-04-01 → 2026-07-03 · 17 obs

○A108.158.122.92026-04-01 → 2026-07-03 · 17 obs

○A108.158.128.102026-07-27 → 2026-07-28 · 8 obs

○ 2026-07-27 18:50:56
● 2026-07-27 19:22:34
○ 2026-07-27 20:47:34
● 2026-07-27 21:39:24
○ 2026-07-27 22:30:44
● 2026-07-28 00:01:30
○ 2026-07-28 02:35:58
○ 2026-08-06 17:28:48

○A108.158.128.192026-07-27 → 2026-07-28 · 8 obs

○ 2026-07-27 18:50:56
● 2026-07-27 19:22:34
○ 2026-07-27 20:47:34
● 2026-07-27 21:39:24
○ 2026-07-27 22:30:44
● 2026-07-28 00:01:30
○ 2026-07-28 02:35:58
○ 2026-08-06 17:28:48

○A108.158.128.352026-07-27 → 2026-07-28 · 8 obs

○ 2026-07-27 18:50:56
● 2026-07-27 19:22:34
○ 2026-07-27 20:47:34
● 2026-07-27 21:39:24
○ 2026-07-27 22:30:44
● 2026-07-28 00:01:30
○ 2026-07-28 02:35:58
○ 2026-08-06 17:28:48

○A108.158.128.82026-07-27 → 2026-07-28 · 8 obs

○ 2026-07-27 18:50:56
● 2026-07-27 19:22:34
○ 2026-07-27 20:47:34
● 2026-07-27 21:39:24
○ 2026-07-27 22:30:44
● 2026-07-28 00:01:30
○ 2026-07-28 02:35:58
○ 2026-08-06 17:28:48

○A13.226.238.1252026-02-25 → 2026-08-06 · 23 obs

● 2026-02-25 07:59:06
● 2026-02-26 07:53:04
○ 2026-02-28 10:47:16
○ 2026-06-15 17:29:30
● 2026-06-21 14:54:38
● 2026-06-23 15:02:30
○ 2026-06-24 13:12:22
○ 2026-06-28 14:41:30
● 2026-07-01 13:42:36
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● 2026-07-09 08:21:32
○ 2026-07-11 18:53:00
● 2026-07-26 06:42:54
○ 2026-07-26 08:46:16
● 2026-08-03 02:03:28
○ 2026-08-03 05:52:50
● 2026-08-04 17:15:14
○ 2026-08-04 19:15:24
● 2026-08-05 19:51:28
○ 2026-08-05 23:00:22
● 2026-08-06 09:21:22
○ 2026-08-06 11:04:20
○ 2026-08-06 17:28:48

○A13.226.238.482026-02-25 → 2026-08-06 · 23 obs

○A13.226.238.652026-02-25 → 2026-08-06 · 23 obs

○A13.226.238.792026-02-25 → 2026-08-06 · 23 obs

○A13.227.207.1212026-03-28 → 2026-08-06 · 30 obs

○ 2026-03-27 23:13:24
● 2026-03-28 20:54:22
○ 2026-03-28 22:23:08
● 2026-03-28 22:53:40
○ 2026-03-29 01:43:48
○ 2026-06-16 01:13:58
● 2026-06-30 22:21:04
● 2026-07-09 12:47:18
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○ 2026-07-24 02:16:50
● 2026-07-28 02:35:58
● 2026-08-01 12:47:14
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● 2026-08-02 18:09:52
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● 2026-08-03 05:52:50
○ 2026-08-03 11:32:50
● 2026-08-03 12:23:30
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● 2026-08-03 16:50:44
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● 2026-08-04 13:26:44
○ 2026-08-04 16:21:28
● 2026-08-05 23:00:22
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○ 2026-08-06 17:28:48

○A13.227.207.1252026-03-28 → 2026-08-06 · 30 obs

○A13.227.207.142026-03-28 → 2026-08-06 · 30 obs

○A13.227.207.512026-03-28 → 2026-08-06 · 30 obs

○A13.33.109.1192026-04-20 → 2026-08-02 · 18 obs

○ 2026-04-19 06:17:14
● 2026-04-20 21:22:14
○ 2026-04-20 22:06:46
○ 2026-04-21 03:48:12
● 2026-04-21 04:25:10
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● 2026-04-24 00:39:00
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● 2026-05-20 15:44:26
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● 2026-08-02 16:08:24
○ 2026-08-02 18:09:52
○ 2026-08-06 17:28:48

○A13.33.109.152026-04-20 → 2026-08-02 · 18 obs

○A13.33.109.422026-04-20 → 2026-08-02 · 18 obs

○A13.33.109.522026-04-20 → 2026-08-02 · 18 obs

○A13.33.131.192026-07-24 → 2026-07-24 · 4 obs

○ 2026-07-24 04:50:14
● 2026-07-24 12:23:32
○ 2026-07-24 22:55:44
○ 2026-08-06 17:28:48

○A13.33.131.62026-07-24 → 2026-07-24 · 4 obs

○ 2026-07-24 04:50:14
● 2026-07-24 12:23:32
○ 2026-07-24 22:55:44
○ 2026-08-06 17:28:48

○A13.33.131.642026-07-24 → 2026-07-24 · 4 obs

○ 2026-07-24 04:50:14
● 2026-07-24 12:23:32
○ 2026-07-24 22:55:44
○ 2026-08-06 17:28:48

○A13.33.131.892026-07-24 → 2026-07-24 · 4 obs

○ 2026-07-24 04:50:14
● 2026-07-24 12:23:32
○ 2026-07-24 22:55:44
○ 2026-08-06 17:28:48

○A13.35.107.1252026-07-13 → 2026-08-01 · 17 obs

○ 2026-07-12 08:51:32
● 2026-07-13 02:35:44
○ 2026-07-13 06:51:30
● 2026-07-13 10:41:06
○ 2026-07-13 15:22:18
○ 2026-07-15 08:18:52
● 2026-07-16 18:26:26
○ 2026-07-18 12:41:38
● 2026-07-20 10:46:56
● 2026-07-24 04:50:14
○ 2026-07-25 10:11:14
○ 2026-07-28 18:18:02
● 2026-07-30 09:00:36
○ 2026-07-30 11:07:06
● 2026-08-01 23:06:50
○ 2026-08-01 23:54:32
○ 2026-08-06 17:28:48

○A13.35.107.152026-07-13 → 2026-08-01 · 17 obs

○A13.35.107.352026-07-13 → 2026-08-01 · 17 obs

○A13.35.107.82026-07-13 → 2026-08-01 · 17 obs

○A18.164.144.1232026-05-28 → 2026-06-05 · 17 obs

○ 2026-05-28 10:49:56
● 2026-05-28 11:47:02
○ 2026-05-28 13:03:04
● 2026-05-28 13:39:28
● 2026-05-28 14:34:14
○ 2026-05-28 15:20:36
○ 2026-05-30 10:55:28
● 2026-05-30 12:27:34
● 2026-05-30 18:09:08
○ 2026-05-30 22:03:16
○ 2026-06-05 02:56:34
● 2026-06-05 06:33:58
○ 2026-06-05 09:39:26
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● 2026-06-05 14:22:10
○ 2026-06-05 15:54:02
○ 2026-08-06 17:28:48

○A18.164.144.272026-05-28 → 2026-06-05 · 17 obs

○A18.164.144.312026-05-28 → 2026-06-05 · 17 obs

○A18.164.144.972026-05-28 → 2026-06-05 · 17 obs

○A18.172.88.162026-05-29 → 2026-05-29 · 4 obs

○ 2026-05-28 19:06:58
● 2026-05-29 03:06:10
○ 2026-05-29 05:02:18
○ 2026-08-06 17:28:48

○A18.172.88.312026-05-29 → 2026-05-29 · 4 obs

○ 2026-05-28 19:06:58
● 2026-05-29 03:06:10
○ 2026-05-29 05:02:18
○ 2026-08-06 17:28:48

○A18.172.88.732026-05-29 → 2026-05-29 · 4 obs

○ 2026-05-28 19:06:58
● 2026-05-29 03:06:10
○ 2026-05-29 05:02:18
○ 2026-08-06 17:28:48

○A18.172.88.762026-05-29 → 2026-05-29 · 4 obs

○ 2026-05-28 19:06:58
● 2026-05-29 03:06:10
○ 2026-05-29 05:02:18
○ 2026-08-06 17:28:48

○A18.239.50.1112026-03-24 → 2026-03-24 · 4 obs

○ 2026-03-23 11:15:14
● 2026-03-24 11:16:50
○ 2026-03-24 16:25:20
○ 2026-08-06 17:28:48

○A18.239.50.1182026-03-24 → 2026-03-24 · 4 obs

○ 2026-03-23 11:15:14
● 2026-03-24 11:16:50
○ 2026-03-24 16:25:20
○ 2026-08-06 17:28:48

○A18.239.50.222026-03-24 → 2026-03-24 · 4 obs

○ 2026-03-23 11:15:14
● 2026-03-24 11:16:50
○ 2026-03-24 16:25:20
○ 2026-08-06 17:28:48

○A18.239.50.332026-03-24 → 2026-03-24 · 4 obs

○ 2026-03-23 11:15:14
● 2026-03-24 11:16:50
○ 2026-03-24 16:25:20
○ 2026-08-06 17:28:48

○A3.160.119.1122026-04-04 → 2026-04-04 · 4 obs

○ 2026-04-02 10:16:40
● 2026-04-04 00:14:16
○ 2026-04-04 04:17:16
○ 2026-08-06 17:28:48

○A3.160.119.152026-04-04 → 2026-04-04 · 4 obs

○ 2026-04-02 10:16:40
● 2026-04-04 00:14:16
○ 2026-04-04 04:17:16
○ 2026-08-06 17:28:48

○A3.160.119.162026-04-04 → 2026-04-04 · 4 obs

○ 2026-04-02 10:16:40
● 2026-04-04 00:14:16
○ 2026-04-04 04:17:16
○ 2026-08-06 17:28:48

○A3.160.119.382026-04-04 → 2026-04-04 · 4 obs

○ 2026-04-02 10:16:40
● 2026-04-04 00:14:16
○ 2026-04-04 04:17:16
○ 2026-08-06 17:28:48

○A3.163.83.1132026-03-30 → 2026-07-30 · 18 obs

○ 2026-03-29 16:13:54
● 2026-03-30 20:33:42
○ 2026-03-30 23:02:10
○ 2026-03-31 01:00:14
● 2026-03-31 03:29:46
○ 2026-03-31 16:16:02
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● 2026-06-22 22:23:06
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● 2026-06-29 17:35:56
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● 2026-07-28 07:07:38
● 2026-07-30 11:07:06
○ 2026-07-30 14:44:04
● 2026-07-30 15:17:56
○ 2026-07-30 18:34:52
○ 2026-08-06 17:28:48

○A3.163.83.1282026-03-30 → 2026-07-30 · 18 obs

○A3.163.83.152026-03-30 → 2026-07-30 · 18 obs

○A3.163.83.852026-03-30 → 2026-07-30 · 18 obs

●A3.164.206.192026-03-22 → 2026-08-06 · 21 obs

○ 2026-03-22 02:13:28
● 2026-03-22 20:51:40
○ 2026-03-23 03:28:32
○ 2026-03-23 05:15:46
● 2026-03-23 06:35:02
○ 2026-03-23 11:15:14
○ 2026-06-02 22:28:52
● 2026-07-11 08:24:30
○ 2026-07-12 08:51:32
● 2026-07-13 08:32:38
● 2026-07-15 22:12:44
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● 2026-07-18 06:11:06
● 2026-07-19 15:01:56
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● 2026-07-20 11:30:06
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● 2026-08-05 10:24:50
○ 2026-08-05 19:51:28
● 2026-08-06 14:06:46
● 2026-08-06 17:28:48

●A3.164.206.312026-03-22 → 2026-08-06 · 21 obs

●A3.164.206.522026-03-22 → 2026-08-06 · 21 obs

●A3.164.206.72026-03-22 → 2026-08-06 · 21 obs

○A3.166.152.422026-07-27 → 2026-07-27 · 4 obs

○ 2026-07-26 17:35:00
● 2026-07-27 06:29:26
○ 2026-07-27 17:06:12
○ 2026-08-06 17:28:48

○A3.166.152.572026-07-27 → 2026-07-27 · 4 obs

○ 2026-07-26 17:35:00
● 2026-07-27 06:29:26
○ 2026-07-27 17:06:12
○ 2026-08-06 17:28:48

○A3.166.152.582026-07-27 → 2026-07-27 · 4 obs

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○A3.166.152.992026-07-27 → 2026-07-27 · 4 obs

○ 2026-07-26 17:35:00
● 2026-07-27 06:29:26
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○A3.167.138.352026-05-20 → 2026-07-02 · 18 obs

○ 2026-05-20 16:48:16
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○A3.167.138.422026-05-20 → 2026-07-02 · 18 obs

○A3.167.138.542026-05-20 → 2026-07-02 · 18 obs

○A3.167.138.762026-05-20 → 2026-07-02 · 18 obs

○A3.171.117.32026-03-08 → 2026-03-29 · 10 obs

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○A3.171.117.422026-03-08 → 2026-03-29 · 10 obs

○A3.171.117.492026-03-08 → 2026-03-29 · 10 obs

○A3.171.117.62026-03-08 → 2026-03-29 · 10 obs

○A3.171.171.1292026-04-02 → 2026-04-02 · 5 obs

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○A3.171.171.302026-04-02 → 2026-04-02 · 5 obs

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○A3.171.171.842026-04-02 → 2026-04-02 · 5 obs

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○A3.171.171.922026-04-02 → 2026-04-02 · 5 obs

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○A3.174.141.102026-03-04 → 2026-08-04 · 18 obs

○ 2026-03-03 00:34:42
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○A3.174.141.1202026-03-04 → 2026-08-04 · 18 obs

○A3.174.141.382026-03-04 → 2026-08-04 · 18 obs

○A3.174.141.522026-03-04 → 2026-08-04 · 18 obs

○A3.174.59.1182026-04-27 → 2026-07-26 · 17 obs

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○A3.174.59.332026-04-27 → 2026-07-26 · 17 obs

○A3.174.59.432026-04-27 → 2026-07-26 · 17 obs

○A3.174.59.752026-04-27 → 2026-07-26 · 17 obs

○A52.84.174.1032026-07-25 → 2026-07-28 · 18 obs

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○A52.84.174.192026-07-25 → 2026-07-28 · 18 obs

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○A52.84.174.642026-07-25 → 2026-07-28 · 18 obs

○A54.230.114.112026-03-22 → 2026-03-22 · 4 obs

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○A54.230.114.1252026-03-22 → 2026-03-22 · 4 obs

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○A54.230.114.312026-03-22 → 2026-03-22 · 4 obs

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○A54.230.114.652026-03-22 → 2026-03-22 · 4 obs

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○A99.84.41.1142026-02-28 → 2026-08-06 · 30 obs

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● 2026-03-02 22:10:56
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○A99.84.41.1172026-02-28 → 2026-08-06 · 30 obs

○A99.84.41.1242026-02-28 → 2026-08-06 · 30 obs

○A99.84.41.1292026-02-28 → 2026-08-06 · 30 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	e.gtld-servers.net, l.gtld-servers.net, g.gtld-servers.net, h.gtld-servers.net...	-
pfcomputing.com	ns-452.awsdns-56.com, ns-937.awsdns-53.net, ns-1806.awsdns-33.co.uk, ns-1478.awsdns-56.org	2 records

✅ Authoritative Response

Server:205.251.199.14

NS records: ns-452.awsdns-56.com, ns-937.awsdns-53.net, ns-1806.awsdns-33.co.uk, ns-1478.awsdns-56.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for pfcomputing.com (unsigned zone)

⏱️ Timing

Total: 376ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`13.226.238.48, 13.226.238.79...`
NS	4	`ns-1478.awsdns-56.org, ns-1806.awsdns-33.co.uk...`
MX	1	`inbound-smtp.us-east-1.amazonaws.com (pr`
TXT	1	`v=spf1 include:amazonses.com include:mai`
SOA	1	`ns-1806.awsdns-33.co.uk awsdns-hostmaste`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-452.awsdns-56.com, ns-452.awsdns-56.com)

Analysis

IP Addresses

pfcomputing.com points to the four IP addresses 3.164.206.7, 3.164.206.19, 3.164.206.31 and 3.164.206.52.

stage.vivo.common.azure.reingoldms.com, 2073bcbf18e7.73a139e6.us-east-1.token.awswaf.com, mobiliteitsvisie2040.vlaanderen.be plus two other host names have IP numbers in common with pfcomputing.com.

Name Servers

Four name servers handle the delegation for pfcomputing.com: ns-452.awsdns-56.com, ns-937.awsdns-53.net, ns-1478.awsdns-56.org and ns-1806.awsdns-33.co.uk.

There is at least partial name server overlap between pfcomputing.com and other domains — d1cbljrc92lgo6.cloudfront.net, ekdesk.com, plus-three.jp and two more among them.

All four hostnames — ns-452.awsdns-56.com, ns-937.awsdns-53.net, ns-1478.awsdns-56.org and ns-1806.awsdns-33.co.uk — resolve to two IP numbers apiece: ns-452.awsdns-56.com to 205.251.193.196 and 2600:9000:5301:c400::1; ns-937.awsdns-53.net to 205.251.195.169 and 2600:9000:5303:a900::1; ns-1478.awsdns-56.org to 205.251.197.198 and 2600:9000:5305:c600::1; ns-1806.awsdns-33.co.uk to 205.251.199.14 and 2600:9000:5307:e00::1.

Mail Servers

pfcomputing.com uses one mail server — inbound-smtp.us-east-1.amazonaws.com.

The mail server setup of pfcomputing.com matches that of other domains such as falcondlp.black, whitford.org, apollo-d.net and two others.

At least some of the mail servers used by pfcomputing.com are shared with other domains: virtimo.atlassian.net, fnp.sg, nylightingdesign.com and two others among them.

These mail servers tend to be used in conjunction with the mail servers inbound-smtp.us-west-2.amazonaws.com.

inbound-smtp.us-east-1.amazonaws.com directs to five IP numbers: 3.211.210.226, 44.206.9.87, 44.210.166.32 and two others.