top5bisoftware.com - dns.ninja

`top5bisoftware.com`

DNSSEC	⚠️ Not signed
A	3.171.61.66^{🇺🇸 Amazon3.171.60.0/23}
		PTR	`server-3-171-61-66.iad61.r.cloudfront.net`
A	3.171.61.73^{🇺🇸 Amazon3.171.60.0/23}
A	3.171.61.79^{🇺🇸 Amazon3.171.60.0/23}
A	3.171.61.115^{🇺🇸 Amazon3.171.60.0/23}
NS	`ns-541.awsdns-03.net` ⭐
		A	2600:9000:5302:1d00::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-541.awsdns-03.net`
		A	205.251.194.29^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-541.awsdns-03.net`
NS	`ns-1081.awsdns-07.org`
		A	2600:9000:5304:3900::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1081.awsdns-07.org`
		A	205.251.196.57^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1081.awsdns-07.org`
NS	`ns-1975.awsdns-54.co.uk`
		A	2600:9000:5307:b700::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1975.awsdns-54.co.uk`
		A	205.251.199.183^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1975.awsdns-54.co.uk`
NS	`ns-398.awsdns-49.com`
		A	2600:9000:5301:8e00::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-398.awsdns-49.com`
		A	205.251.193.142^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-398.awsdns-49.com`
MX	`mail.top5bisoftware.com` ⭐
		A	52.51.131.251^{🇮🇪 Amazon52.48.0.0/14 EC2 DUB prefix}
			PTR	`ec2-52-51-131-251.eu-west-1.compute.amazonaws.com`
SOA	`ns-541.awsdns-03.net`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=1786109874

Subdomains

www.top5bisoftware.com

mail.top5bisoftware.com

Same first word

top5bisoftware.com

DNS History

92 records (9 active, 83 former)

●NSns-1081.awsdns-07.org2026-02-16 → 2026-08-07 · 3 obs

○ 2018-01-30 10:30:48
● 2026-02-16 21:54:02
● 2026-08-07 14:00:38

●NSns-1975.awsdns-54.co.uk2026-02-16 → 2026-08-07 · 3 obs

○ 2018-01-30 10:30:48
● 2026-02-16 21:54:02
● 2026-08-07 14:00:38

●NSns-398.awsdns-49.com2026-02-16 → 2026-08-07 · 3 obs

○ 2018-01-30 10:30:48
● 2026-02-16 21:54:02
● 2026-08-07 14:00:38

●NSns-541.awsdns-03.net2026-02-16 → 2026-08-07 · 3 obs

○ 2018-01-30 10:30:48
● 2026-02-16 21:54:02
● 2026-08-07 14:00:38

○NSns45.domaincontrol.com2018-01-30 → 2018-01-30 · 3 obs

● 2018-01-30 10:30:48
○ 2026-02-16 21:54:02
○ 2026-08-07 14:00:38

○NSns46.domaincontrol.com2018-01-30 → 2018-01-30 · 3 obs

● 2018-01-30 10:30:48
○ 2026-02-16 21:54:02
○ 2026-08-07 14:00:38

●MXmail.top5bisoftware.com2026-02-16 → 2026-08-07 · 6 obs

● 2026-02-16 21:54:02
○ 2026-06-25 01:57:48
● 2026-06-25 02:34:22
○ 2026-07-16 21:01:22
● 2026-07-17 01:05:22
● 2026-08-07 14:00:38

○A108.158.137.1002026-04-11 → 2026-07-27 · 19 obs

○ 2026-04-10 04:49:52
● 2026-04-11 00:31:06
○ 2026-04-11 01:19:20
○ 2026-04-11 05:44:04
● 2026-04-11 09:29:16
○ 2026-04-11 22:23:02
○ 2026-06-01 22:34:16
● 2026-07-01 23:23:46
○ 2026-07-01 23:57:26
● 2026-07-23 08:03:38
○ 2026-07-23 11:32:34
● 2026-07-24 10:27:36
● 2026-07-24 14:39:20
○ 2026-07-26 00:56:50
● 2026-07-26 23:37:00
○ 2026-07-27 05:38:14
● 2026-07-27 21:15:38
○ 2026-07-28 02:42:54
○ 2026-08-07 14:00:38

○A108.158.137.1192026-04-11 → 2026-07-27 · 19 obs

○A108.158.137.1272026-04-11 → 2026-07-27 · 19 obs

○A108.158.137.812026-04-11 → 2026-07-27 · 19 obs

○A13.224.252.142026-04-29 → 2026-08-07 · 37 obs

○ 2026-04-28 18:48:04
● 2026-04-29 01:59:00
● 2026-04-29 10:00:16
○ 2026-04-29 11:19:26
● 2026-04-29 12:02:02
○ 2026-04-29 16:12:48
○ 2026-05-27 22:18:40
● 2026-05-31 14:16:20
○ 2026-06-02 12:59:42
○ 2026-06-15 11:07:16
● 2026-06-30 22:26:56
● 2026-07-20 21:12:34
○ 2026-07-24 10:27:36
● 2026-07-28 02:42:54
● 2026-07-31 15:12:48
○ 2026-07-31 18:02:06
● 2026-07-31 18:55:10
○ 2026-08-01 00:00:14
● 2026-08-01 13:24:14
○ 2026-08-01 22:10:48
● 2026-08-01 23:19:56
○ 2026-08-02 14:57:40
● 2026-08-02 18:17:48
○ 2026-08-04 07:31:32
● 2026-08-04 14:45:54
○ 2026-08-04 16:36:20
● 2026-08-04 17:12:38
○ 2026-08-04 20:32:50
● 2026-08-04 22:40:54
○ 2026-08-05 04:12:24
● 2026-08-05 17:51:22
○ 2026-08-05 19:41:32
● 2026-08-05 23:10:22
○ 2026-08-07 00:56:32
● 2026-08-07 08:43:32
○ 2026-08-07 14:00:36
○ 2026-08-07 14:00:38

○A13.224.252.342026-04-29 → 2026-08-07 · 37 obs

○A13.224.252.492026-04-29 → 2026-08-07 · 37 obs

○A13.224.252.632026-04-29 → 2026-08-07 · 37 obs

○A13.225.107.382026-03-30 → 2026-04-28 · 19 obs

○ 2026-03-27 00:20:40
● 2026-03-30 11:10:12
○ 2026-03-30 13:32:10
○ 2026-03-30 18:28:20
● 2026-03-31 00:14:24
○ 2026-03-31 08:09:46
○ 2026-04-09 11:00:18
● 2026-04-10 00:13:38
○ 2026-04-10 04:49:52
○ 2026-04-17 15:54:56
● 2026-04-18 00:13:02
○ 2026-04-19 02:05:54
○ 2026-04-26 03:13:40
● 2026-04-26 09:45:10
○ 2026-04-26 21:27:38
○ 2026-04-28 15:15:10
● 2026-04-28 17:31:58
○ 2026-04-28 18:48:04
○ 2026-08-07 14:00:38

○A13.225.107.622026-03-30 → 2026-04-28 · 19 obs

○A13.225.107.762026-03-30 → 2026-04-28 · 19 obs

○A13.225.107.792026-03-30 → 2026-04-28 · 19 obs

○A13.227.207.1262026-03-31 → 2026-08-04 · 21 obs

○ 2026-03-31 08:09:46
● 2026-03-31 10:31:30
○ 2026-03-31 11:48:16
○ 2026-04-23 21:39:42
● 2026-04-24 04:23:06
○ 2026-04-25 03:22:32
○ 2026-06-13 18:52:08
● 2026-07-03 19:12:46
○ 2026-07-03 22:20:20
● 2026-07-08 22:48:28
● 2026-07-10 23:41:34
○ 2026-07-11 02:40:32
● 2026-07-15 09:04:48
○ 2026-07-15 16:31:58
● 2026-07-19 06:31:28
○ 2026-07-19 15:23:58
● 2026-07-31 03:46:46
○ 2026-07-31 05:43:10
● 2026-08-04 20:32:50
○ 2026-08-04 22:40:54
○ 2026-08-07 14:00:38

○A13.227.207.182026-03-31 → 2026-08-04 · 21 obs

○A13.227.207.202026-03-31 → 2026-08-04 · 21 obs

○A13.227.207.832026-03-31 → 2026-08-04 · 21 obs

○A13.32.179.1042026-04-02 → 2026-04-02 · 4 obs

○ 2026-04-02 10:37:48
● 2026-04-02 11:17:54
○ 2026-04-02 16:06:34
○ 2026-08-07 14:00:38

○A13.32.179.1242026-04-02 → 2026-04-02 · 4 obs

○ 2026-04-02 10:37:48
● 2026-04-02 11:17:54
○ 2026-04-02 16:06:34
○ 2026-08-07 14:00:38

○A13.32.179.552026-04-02 → 2026-04-02 · 4 obs

○ 2026-04-02 10:37:48
● 2026-04-02 11:17:54
○ 2026-04-02 16:06:34
○ 2026-08-07 14:00:38

○A13.32.179.972026-04-02 → 2026-04-02 · 4 obs

○ 2026-04-02 10:37:48
● 2026-04-02 11:17:54
○ 2026-04-02 16:06:34
○ 2026-08-07 14:00:38

○A13.33.235.392026-03-25 → 2026-08-07 · 21 obs

○ 2026-03-23 00:23:30
● 2026-03-25 16:43:18
○ 2026-03-27 00:20:40
● 2026-07-12 11:13:08
○ 2026-07-12 17:46:38
● 2026-07-13 18:41:04
● 2026-07-14 01:03:20
○ 2026-07-14 13:15:18
● 2026-07-14 21:01:02
○ 2026-07-15 04:46:20
○ 2026-07-15 15:25:48
● 2026-07-15 22:50:34
○ 2026-07-16 09:37:12
○ 2026-07-16 19:08:46
● 2026-07-17 01:05:22
○ 2026-07-17 03:03:06
● 2026-07-18 21:20:18
○ 2026-07-19 06:31:28
● 2026-08-07 00:56:32
○ 2026-08-07 08:02:08
○ 2026-08-07 14:00:38

○A13.33.235.42026-03-25 → 2026-08-07 · 21 obs

○A13.33.235.82026-03-25 → 2026-08-07 · 21 obs

○A13.33.235.832026-03-25 → 2026-08-07 · 21 obs

○A13.35.36.1232026-05-30 → 2026-05-30 · 4 obs

○ 2026-05-29 13:47:44
● 2026-05-30 06:01:58
○ 2026-05-30 10:14:50
○ 2026-08-07 14:00:38

○A13.35.36.312026-05-30 → 2026-05-30 · 4 obs

○ 2026-05-29 13:47:44
● 2026-05-30 06:01:58
○ 2026-05-30 10:14:50
○ 2026-08-07 14:00:38

○A13.35.36.682026-05-30 → 2026-05-30 · 4 obs

○ 2026-05-29 13:47:44
● 2026-05-30 06:01:58
○ 2026-05-30 10:14:50
○ 2026-08-07 14:00:38

○A13.35.36.732026-05-30 → 2026-05-30 · 4 obs

○ 2026-05-29 13:47:44
● 2026-05-30 06:01:58
○ 2026-05-30 10:14:50
○ 2026-08-07 14:00:38

○A18.161.34.1072026-04-20 → 2026-08-02 · 21 obs

○ 2026-04-19 08:43:30
● 2026-04-20 20:15:06
○ 2026-04-20 21:09:16
○ 2026-04-23 11:17:12
● 2026-04-23 12:49:34
○ 2026-04-23 15:24:12
○ 2026-05-01 07:54:22
● 2026-05-02 00:24:40
● 2026-05-02 10:23:34
○ 2026-05-02 16:15:44
○ 2026-05-12 00:09:38
● 2026-05-12 12:35:52
○ 2026-05-12 13:59:26
○ 2026-05-19 07:06:44
● 2026-05-19 22:29:20
○ 2026-05-19 23:51:50
● 2026-05-20 00:34:08
○ 2026-05-20 01:07:26
● 2026-08-02 14:57:40
○ 2026-08-02 15:35:12
○ 2026-08-07 14:00:38

○A18.161.34.1282026-04-20 → 2026-08-02 · 21 obs

○A18.161.34.582026-04-20 → 2026-08-02 · 21 obs

○A18.161.34.712026-04-20 → 2026-08-02 · 21 obs

○A18.238.4.232026-07-12 → 2026-08-01 · 22 obs

○ 2026-07-12 11:13:08
● 2026-07-12 17:46:38
○ 2026-07-12 19:22:06
● 2026-07-14 13:15:18
○ 2026-07-14 14:06:08
○ 2026-07-14 18:50:36
● 2026-07-16 16:22:06
○ 2026-07-16 18:35:40
● 2026-07-20 19:14:40
○ 2026-07-20 19:46:12
● 2026-07-26 00:56:50
○ 2026-07-26 23:37:00
○ 2026-07-30 10:00:54
● 2026-07-31 18:02:06
○ 2026-07-31 18:55:10
● 2026-08-01 00:00:14
○ 2026-08-01 08:17:42
● 2026-08-01 12:06:42
○ 2026-08-01 12:39:44
● 2026-08-01 22:10:48
○ 2026-08-01 23:19:56
○ 2026-08-07 14:00:38

○A18.238.4.322026-07-12 → 2026-08-01 · 22 obs

○A18.238.4.712026-07-12 → 2026-08-01 · 22 obs

○A18.238.4.972026-07-12 → 2026-08-01 · 22 obs

○A18.245.143.1282026-02-18 → 2026-06-30 · 17 obs

○ 2026-02-17 23:39:50
● 2026-02-18 18:38:54
○ 2026-02-20 11:05:50
○ 2026-02-21 14:33:14
● 2026-02-23 11:37:32
● 2026-04-15 10:00:12
○ 2026-04-22 21:14:02
● 2026-04-25 07:56:30
● 2026-05-12 00:09:38
○ 2026-05-12 12:35:52
○ 2026-06-16 22:22:38
● 2026-06-20 19:19:06
● 2026-06-30 06:12:10
○ 2026-06-30 10:10:48
● 2026-06-30 14:46:10
○ 2026-06-30 22:26:56
○ 2026-08-07 14:00:38

○A18.245.143.792026-02-18 → 2026-06-30 · 17 obs

○A18.245.143.82026-02-18 → 2026-06-30 · 17 obs

○A18.245.143.802026-02-18 → 2026-06-30 · 17 obs

○A18.245.175.1072026-07-27 → 2026-07-27 · 4 obs

○ 2026-07-26 23:37:00
● 2026-07-27 05:38:14
○ 2026-07-27 10:41:34
○ 2026-08-07 14:00:38

○A18.245.175.342026-07-27 → 2026-07-27 · 4 obs

○ 2026-07-26 23:37:00
● 2026-07-27 05:38:14
○ 2026-07-27 10:41:34
○ 2026-08-07 14:00:38

○A18.245.175.572026-07-27 → 2026-07-27 · 4 obs

○ 2026-07-26 23:37:00
● 2026-07-27 05:38:14
○ 2026-07-27 10:41:34
○ 2026-08-07 14:00:38

○A18.245.175.652026-07-27 → 2026-07-27 · 4 obs

○ 2026-07-26 23:37:00
● 2026-07-27 05:38:14
○ 2026-07-27 10:41:34
○ 2026-08-07 14:00:38

○A184.168.221.332018-01-30 → 2018-01-30 · 3 obs

● 2018-01-30 10:30:48
○ 2026-02-16 21:54:02
○ 2026-08-07 14:00:38

○A184.168.221.362018-01-30 → 2018-01-30 · 3 obs

● 2018-01-30 10:30:48
○ 2026-02-16 21:54:02
○ 2026-08-07 14:00:38

○A184.168.221.492018-01-30 → 2018-01-30 · 3 obs

● 2018-01-30 10:30:48
○ 2026-02-16 21:54:02
○ 2026-08-07 14:00:38

○A184.168.221.552018-01-30 → 2018-01-30 · 3 obs

● 2018-01-30 10:30:48
○ 2026-02-16 21:54:02
○ 2026-08-07 14:00:38

○A184.168.221.612018-01-30 → 2018-01-30 · 3 obs

● 2018-01-30 10:30:48
○ 2026-02-16 21:54:02
○ 2026-08-07 14:00:38

○A184.168.221.632018-01-30 → 2018-01-30 · 3 obs

● 2018-01-30 10:30:48
○ 2026-02-16 21:54:02
○ 2026-08-07 14:00:38

○A3.163.83.1092026-03-31 → 2026-07-30 · 19 obs

○ 2026-03-31 11:48:16
● 2026-03-31 12:31:30
○ 2026-03-31 14:20:12
○ 2026-04-01 01:51:04
● 2026-04-01 03:15:44
○ 2026-04-02 10:37:48
○ 2026-06-18 20:43:36
● 2026-06-22 16:54:24
○ 2026-06-22 23:02:50
● 2026-06-24 17:23:56
● 2026-06-26 01:22:58
○ 2026-06-26 22:09:20
○ 2026-06-30 04:36:32
● 2026-07-28 09:33:36
● 2026-07-30 04:45:04
○ 2026-07-30 08:27:04
● 2026-07-30 10:00:54
○ 2026-07-30 18:35:00
○ 2026-08-07 14:00:38

○A3.163.83.172026-03-31 → 2026-07-30 · 19 obs

○A3.163.83.732026-03-31 → 2026-07-30 · 19 obs

○A3.163.83.912026-03-31 → 2026-07-30 · 19 obs

○A3.171.22.1002026-05-21 → 2026-07-01 · 19 obs

○ 2026-05-20 01:07:26
● 2026-05-21 00:20:20
○ 2026-05-21 10:58:24
○ 2026-05-21 11:35:02
● 2026-05-21 12:32:18
○ 2026-05-23 12:47:36
● 2026-05-25 11:42:48
● 2026-05-27 22:18:40
○ 2026-05-29 13:47:44
○ 2026-05-31 14:16:20
● 2026-06-02 12:59:42
● 2026-06-06 05:38:48
○ 2026-06-07 11:50:26
○ 2026-06-08 11:49:12
● 2026-07-01 22:24:40
○ 2026-07-01 23:23:46
● 2026-07-01 23:57:26
○ 2026-07-02 03:06:40
○ 2026-08-07 14:00:38

○A3.171.22.1152026-05-21 → 2026-07-01 · 19 obs

○A3.171.22.862026-05-21 → 2026-07-01 · 19 obs

○A3.171.22.932026-05-21 → 2026-07-01 · 19 obs

●A3.171.61.1152026-02-16 → 2026-08-07 · 26 obs

○ 2018-01-30 10:30:48
● 2026-02-16 21:54:02
● 2026-02-17 23:39:50
○ 2026-02-18 18:38:54
● 2026-02-20 11:05:50
○ 2026-02-23 11:37:32
○ 2026-03-03 16:28:08
● 2026-03-06 17:37:34
○ 2026-03-09 08:59:06
○ 2026-03-18 21:31:24
● 2026-03-23 00:23:30
○ 2026-03-25 16:43:18
○ 2026-07-03 19:12:46
● 2026-07-07 23:24:42
● 2026-07-10 13:53:56
○ 2026-07-10 15:47:12
● 2026-07-11 09:55:26
○ 2026-07-11 12:17:02
● 2026-08-04 16:36:20
○ 2026-08-04 17:12:38
● 2026-08-05 13:34:14
○ 2026-08-05 17:51:22
● 2026-08-07 08:02:08
○ 2026-08-07 08:43:32
● 2026-08-07 14:00:36
● 2026-08-07 14:00:38

●A3.171.61.662026-02-16 → 2026-08-07 · 26 obs

●A3.171.61.732026-02-16 → 2026-08-07 · 26 obs

●A3.171.61.792026-02-16 → 2026-08-07 · 26 obs

○A3.174.193.122026-05-07 → 2026-05-07 · 4 obs

○ 2026-05-02 16:15:44
● 2026-05-07 20:44:02
○ 2026-05-07 22:37:22
○ 2026-08-07 14:00:38

○A3.174.193.1212026-05-07 → 2026-05-07 · 4 obs

○ 2026-05-02 16:15:44
● 2026-05-07 20:44:02
○ 2026-05-07 22:37:22
○ 2026-08-07 14:00:38

○A3.174.193.442026-05-07 → 2026-05-07 · 4 obs

○ 2026-05-02 16:15:44
● 2026-05-07 20:44:02
○ 2026-05-07 22:37:22
○ 2026-08-07 14:00:38

○A3.174.193.492026-05-07 → 2026-05-07 · 4 obs

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○A3.174.26.1002026-06-08 → 2026-06-08 · 4 obs

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○A3.174.29.1072026-04-08 → 2026-04-19 · 17 obs

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○A50.63.202.462018-01-30 → 2018-01-30 · 3 obs

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○A50.63.202.622018-01-30 → 2018-01-30 · 3 obs

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○A54.192.151.1002026-05-27 → 2026-06-01 · 7 obs

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○A54.192.151.852026-05-27 → 2026-06-01 · 7 obs

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○A99.84.41.572026-02-20 → 2026-08-05 · 31 obs

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○A99.84.41.582026-02-20 → 2026-08-05 · 31 obs

○A99.84.41.642026-02-20 → 2026-08-05 · 31 obs

○A99.84.41.882026-02-20 → 2026-08-05 · 31 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	f.gtld-servers.net, d.gtld-servers.net, a.gtld-servers.net, b.gtld-servers.net...	-
top5bisoftware.com	ns-541.awsdns-03.net, ns-398.awsdns-49.com, ns-1081.awsdns-07.org, ns-1975.awsdns-54.co.uk	2 records

✅ Authoritative Response

Server:205.251.199.183

NS records: ns-541.awsdns-03.net, ns-398.awsdns-49.com, ns-1081.awsdns-07.org, ns-1975.awsdns-54.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for top5bisoftware.com (unsigned zone)

⏱️ Timing

Total: 1214ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`3.171.61.66, 3.171.61.73...`
NS	4	`ns-1081.awsdns-07.org, ns-1975.awsdns-54.co.uk...`
MX	1	`mail.top5bisoftware.com (pri: 10)`
SOA	1	`ns-541.awsdns-03.net awsdns-hostmaster.a`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-398.awsdns-49.com, ns-398.awsdns-49.com)

Analysis

Hierarchy

top5bisoftware.com serves as the parent of www.top5bisoftware.com and mail.top5bisoftware.com.

IP Addresses

top5bisoftware.com has four IP addresses: 3.171.61.66, 3.171.61.73, 3.171.61.79 and 3.171.61.115.

andydevlinsmith.com, movable-ink-5270.com, d3umifhm8el8p3.cloudfront.net plus two other host names have IP numbers in common with top5bisoftware.com.

Name Servers

Four name servers handle the delegation for top5bisoftware.com: ns-398.awsdns-49.com, ns-541.awsdns-03.net, ns-1081.awsdns-07.org and ns-1975.awsdns-54.co.uk.

top5bisoftware.com has at least partial name server overlap with other domains, such as resultsrehab.net, 90.153.205.in-addr.arpa, cert.aws.sabre.com and two others.

These name servers tend to appear together with the name servers ns-1002.awsdns-61.net, ns-127.awsdns-15.com and ns-1399.awsdns-46.org.

ns-398.awsdns-49.com, ns-541.awsdns-03.net, ns-1081.awsdns-07.org and ns-1975.awsdns-54.co.uk all point to exactly two IP numbers each: ns-398.awsdns-49.com → 205.251.193.142 and 2600:9000:5301:8e00::1; ns-541.awsdns-03.net → 205.251.194.29 and 2600:9000:5302:1d00::1; ns-1081.awsdns-07.org → 205.251.196.57 and 2600:9000:5304:3900::1; ns-1975.awsdns-54.co.uk → 205.251.199.183 and 2600:9000:5307:b700::1.

Mail Servers

top5bisoftware.com uses one mail server — mail.top5bisoftware.com.

There is one IP number for mail.top5bisoftware.com: 52.51.131.251.