software-carpentry.org - dns.ninja

`software-carpentry.org`

DNSSEC	⚠️ Not signed
A	3.170.19.21^{🇺🇸 Amazon3.170.19.0/24}
		PTR	`server-3-170-19-21.iad61.r.cloudfront.net`
A	3.170.19.85^{🇺🇸 Amazon3.170.19.0/24}
A	3.170.19.108^{🇺🇸 Amazon3.170.19.0/24}
A	3.170.19.110^{🇺🇸 Amazon3.170.19.0/24}
NS	`ns-391.awsdns-48.com` ⭐
		A	2600:9000:5301:8700::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-391.awsdns-48.com`
		A	205.251.193.135^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-391.awsdns-48.com`
NS	`ns-1473.awsdns-56.org`
		A	2600:9000:5305:c100::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1473.awsdns-56.org`
		A	205.251.197.193^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1473.awsdns-56.org`
NS	`ns-1908.awsdns-46.co.uk`
		A	2600:9000:5307:7400::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1908.awsdns-46.co.uk`
		A	205.251.199.116^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1908.awsdns-46.co.uk`
NS	`ns-597.awsdns-10.net`
		A	2600:9000:5302:5500::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-597.awsdns-10.net`
		A	205.251.194.85^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-597.awsdns-10.net`
MX	`mxa.mailgun.org` ⭐
		A	34.149.254.5^{🇺🇸 Google34.148.0.0/14}
			PTR	`5.254.149.34.bc.googleusercontent.com`
MX	`mxb.mailgun.org` ⭐
		A	34.149.254.5^{🇺🇸 Google34.148.0.0/14}
			PTR	`5.254.149.34.bc.googleusercontent.com`
TXT	`google-site-verification=Gl_N2s1FuOXw99bszPTfXGruISJjC73TBbozSf8KWsk`
TXT	`v=spf1 include:emailsrvr.com ~all`
TXT	`v=spf1 include:mailgun.org ~all`
TXT	`v=spf1 include:servers.mcsv.net ?all`
SOA	`ns-391.awsdns-48.com`awsdns-hostmaster@amazon.com serial=1

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1786294398

rank #108324 globally
rank #10440 in the tld
WOT: SAFE (73/100)
📈 Tranco rank: #414,686

Previously MX for

software-carpentry.org

Subdomains

vps1.software-carpentry.org

files.software-carpentry.org

Same first word

software-carpentry.com

software-carpentry.org

DNS History

112 records (10 active, 102 former)

○NSdns1.stabletransit.com2016-03-27 → 2017-04-01 · 5 obs

○ 2015-11-22 01:14:06
● 2016-03-27 04:45:34
● 2017-04-01 09:15:20
○ 2026-02-19 14:09:02
○ 2026-08-09 17:23:48

○NSdns2.stabletransit.com2016-03-27 → 2017-04-01 · 5 obs

○ 2015-11-22 01:14:06
● 2016-03-27 04:45:34
● 2017-04-01 09:15:20
○ 2026-02-19 14:09:02
○ 2026-08-09 17:23:48

●NSns-1473.awsdns-56.org2026-02-19 → 2026-08-09 · 3 obs

○ 2017-04-01 09:15:20
● 2026-02-19 14:09:02
● 2026-08-09 17:23:48

●NSns-1908.awsdns-46.co.uk2026-02-19 → 2026-08-09 · 3 obs

○ 2017-04-01 09:15:20
● 2026-02-19 14:09:02
● 2026-08-09 17:23:48

●NSns-391.awsdns-48.com2026-02-19 → 2026-08-09 · 3 obs

○ 2017-04-01 09:15:20
● 2026-02-19 14:09:02
● 2026-08-09 17:23:48

●NSns-597.awsdns-10.net2026-02-19 → 2026-08-09 · 3 obs

○ 2017-04-01 09:15:20
● 2026-02-19 14:09:02
● 2026-08-09 17:23:48

○NSns.rackspace.com2016-03-27 → 2017-04-01 · 5 obs

○ 2015-11-22 01:14:06
● 2016-03-27 04:45:34
● 2017-04-01 09:15:20
○ 2026-02-19 14:09:02
○ 2026-08-09 17:23:48

○NSns1.software-carpentry.org2015-07-22 → 2015-11-22 · 4 obs

● 2015-07-22 18:13:02
● 2015-11-22 01:14:06
○ 2016-03-27 04:45:34
○ 2026-08-09 17:23:48

○NSns2.software-carpentry.org2015-07-22 → 2015-11-22 · 4 obs

● 2015-07-22 18:13:02
● 2015-11-22 01:14:06
○ 2016-03-27 04:45:34
○ 2026-08-09 17:23:48

○MXmx1.emailsrvr.com2016-03-27 → 2017-04-01 · 5 obs

○ 2015-11-22 01:14:06
● 2016-03-27 04:45:34
● 2017-04-01 09:15:20
○ 2026-02-19 14:09:02
○ 2026-08-09 17:23:48

○MXmx2.emailsrvr.com2016-03-27 → 2017-04-01 · 5 obs

○ 2015-11-22 01:14:06
● 2016-03-27 04:45:34
● 2017-04-01 09:15:20
○ 2026-02-19 14:09:02
○ 2026-08-09 17:23:48

●MXmxa.mailgun.org2026-02-19 → 2026-08-09 · 3 obs

○ 2017-04-01 09:15:20
● 2026-02-19 14:09:02
● 2026-08-09 17:23:48

●MXmxb.mailgun.org2026-02-19 → 2026-08-09 · 3 obs

○ 2017-04-01 09:15:20
● 2026-02-19 14:09:02
● 2026-08-09 17:23:48

○MXsoftware-carpentry.org2015-07-22 → 2015-11-22 · 4 obs

● 2015-07-22 18:13:02
● 2015-11-22 01:14:06
○ 2016-03-27 04:45:34
○ 2026-08-09 17:23:48

○A108.139.95.1102026-04-08 → 2026-06-07 · 16 obs

○ 2026-03-31 21:34:44
● 2026-04-08 20:59:46
○ 2026-04-08 22:06:42
○ 2026-04-09 15:05:08
● 2026-04-09 15:38:58
○ 2026-04-09 19:10:56
○ 2026-04-11 11:35:46
● 2026-04-11 17:32:20
○ 2026-04-11 23:36:16
○ 2026-04-16 05:18:20
● 2026-04-16 08:54:16
○ 2026-04-16 17:36:36
○ 2026-06-07 07:26:44
● 2026-06-07 16:32:32
○ 2026-06-07 21:18:02
○ 2026-08-09 17:23:48

○A108.139.95.1192026-04-08 → 2026-06-07 · 16 obs

○A108.139.95.662026-04-08 → 2026-06-07 · 16 obs

○A108.139.95.932026-04-08 → 2026-06-07 · 16 obs

○A108.156.152.142026-03-30 → 2026-07-30 · 18 obs

○ 2026-03-29 21:05:30
● 2026-03-30 07:14:28
○ 2026-03-30 08:03:12
○ 2026-03-31 15:22:00
● 2026-03-31 19:07:24
○ 2026-03-31 21:34:44
○ 2026-06-20 02:15:52
● 2026-06-22 18:30:56
○ 2026-06-24 17:14:02
○ 2026-06-27 04:00:14
● 2026-06-28 13:23:10
○ 2026-06-29 16:25:54
● 2026-07-28 08:04:14
● 2026-07-30 01:42:26
○ 2026-07-30 02:47:58
● 2026-07-30 14:36:40
○ 2026-07-31 06:18:52
○ 2026-08-09 17:23:48

○A108.156.152.522026-03-30 → 2026-07-30 · 18 obs

○A108.156.152.912026-03-30 → 2026-07-30 · 18 obs

○A108.156.152.942026-03-30 → 2026-07-30 · 18 obs

○A108.156.91.352026-05-20 → 2026-05-26 · 9 obs

○ 2026-05-19 21:58:08
● 2026-05-20 10:55:00
● 2026-05-20 11:36:20
○ 2026-05-20 12:55:56
○ 2026-05-26 06:49:30
● 2026-05-26 10:43:20
● 2026-05-26 11:22:42
○ 2026-05-26 15:02:06
○ 2026-08-09 17:23:48

○A108.156.91.612026-05-20 → 2026-05-26 · 9 obs

○A108.156.91.622026-05-20 → 2026-05-26 · 9 obs

○A108.156.91.732026-05-20 → 2026-05-26 · 9 obs

○A13.32.241.1042026-03-07 → 2026-03-14 · 11 obs

○ 2026-03-07 08:12:24
● 2026-03-07 21:22:50
● 2026-03-08 00:11:04
○ 2026-03-08 03:03:58
○ 2026-03-08 08:44:50
● 2026-03-08 09:41:40
○ 2026-03-08 10:45:12
○ 2026-03-14 15:57:08
● 2026-03-14 16:30:36
○ 2026-03-14 18:02:30
○ 2026-08-09 17:23:48

○A13.32.241.212026-03-07 → 2026-03-14 · 11 obs

○A13.32.241.232026-03-07 → 2026-03-14 · 11 obs

○A13.32.241.42026-03-07 → 2026-03-14 · 11 obs

○A13.35.36.1062026-05-28 → 2026-06-02 · 12 obs

○ 2026-05-26 15:02:06
● 2026-05-28 00:55:04
○ 2026-05-28 09:06:20
○ 2026-05-29 23:39:44
● 2026-05-30 00:56:38
● 2026-05-30 02:27:58
○ 2026-05-30 02:59:08
○ 2026-06-01 22:19:16
● 2026-06-02 01:04:50
● 2026-06-02 02:20:20
○ 2026-06-02 05:53:44
○ 2026-08-09 17:23:48

○A13.35.36.222026-05-28 → 2026-06-02 · 12 obs

○A13.35.36.362026-05-28 → 2026-06-02 · 12 obs

○A13.35.36.792026-05-28 → 2026-06-02 · 12 obs

○A143.204.194.1022026-07-27 → 2026-07-28 · 8 obs

○ 2026-07-27 12:51:56
● 2026-07-27 18:14:18
○ 2026-07-27 22:30:42
● 2026-07-27 23:29:54
○ 2026-07-28 00:09:06
● 2026-07-28 02:09:44
○ 2026-07-28 04:45:14
○ 2026-08-09 17:23:48

○A143.204.194.1212026-07-27 → 2026-07-28 · 8 obs

○ 2026-07-27 12:51:56
● 2026-07-27 18:14:18
○ 2026-07-27 22:30:42
● 2026-07-27 23:29:54
○ 2026-07-28 00:09:06
● 2026-07-28 02:09:44
○ 2026-07-28 04:45:14
○ 2026-08-09 17:23:48

○A143.204.194.242026-07-27 → 2026-07-28 · 8 obs

○ 2026-07-27 12:51:56
● 2026-07-27 18:14:18
○ 2026-07-27 22:30:42
● 2026-07-27 23:29:54
○ 2026-07-28 00:09:06
● 2026-07-28 02:09:44
○ 2026-07-28 04:45:14
○ 2026-08-09 17:23:48

○A143.204.194.842026-07-27 → 2026-07-28 · 8 obs

○ 2026-07-27 12:51:56
● 2026-07-27 18:14:18
○ 2026-07-27 22:30:42
● 2026-07-27 23:29:54
○ 2026-07-28 00:09:06
● 2026-07-28 02:09:44
○ 2026-07-28 04:45:14
○ 2026-08-09 17:23:48

○A143.95.62.732015-07-22 → 2015-11-22 · 4 obs

● 2015-07-22 18:13:02
● 2015-11-22 01:14:06
○ 2016-03-27 04:45:34
○ 2026-08-09 17:23:48

○A162.209.59.1832016-03-27 → 2017-04-01 · 5 obs

○ 2015-11-22 01:14:06
● 2016-03-27 04:45:34
● 2017-04-01 09:15:20
○ 2026-02-19 14:09:02
○ 2026-08-09 17:23:48

○A18.161.21.152026-03-09 → 2026-08-02 · 19 obs

○ 2026-03-08 10:45:12
● 2026-03-09 00:13:52
○ 2026-03-09 02:28:28
○ 2026-04-21 08:22:20
● 2026-04-21 12:19:06
○ 2026-04-21 15:12:36
○ 2026-05-09 12:14:24
● 2026-05-09 18:22:42
○ 2026-05-09 19:46:06
○ 2026-05-19 08:44:36
● 2026-05-19 14:34:28
● 2026-05-19 15:55:46
○ 2026-05-19 21:58:08
○ 2026-05-20 12:55:56
● 2026-05-20 20:22:58
○ 2026-05-20 21:54:10
● 2026-08-02 12:25:56
○ 2026-08-02 13:52:36
○ 2026-08-09 17:23:48

○A18.161.21.42026-03-09 → 2026-08-02 · 19 obs

○A18.161.21.452026-03-09 → 2026-08-02 · 19 obs

○A18.161.21.502026-03-09 → 2026-08-02 · 19 obs

○A18.164.68.1152026-02-19 → 2026-06-30 · 18 obs

○ 2017-04-01 09:15:20
● 2026-02-19 14:09:02
● 2026-02-20 12:35:58
○ 2026-02-20 15:26:30
● 2026-02-20 18:35:10
● 2026-05-19 00:38:30
○ 2026-05-19 04:14:34
○ 2026-06-08 07:21:16
● 2026-06-08 08:28:16
● 2026-06-20 02:15:52
○ 2026-06-21 21:28:44
○ 2026-06-24 01:42:42
● 2026-06-26 08:16:00
● 2026-06-29 16:25:54
○ 2026-06-30 08:28:06
● 2026-06-30 10:54:40
○ 2026-06-30 22:44:46
○ 2026-08-09 17:23:48

○A18.164.68.192026-02-19 → 2026-06-30 · 18 obs

○A18.164.68.742026-02-19 → 2026-06-30 · 18 obs

○A18.164.68.762026-02-19 → 2026-06-30 · 18 obs

○A18.165.140.1242026-03-23 → 2026-08-07 · 20 obs

○ 2026-03-22 18:35:32
● 2026-03-23 02:42:32
○ 2026-03-23 03:17:44
○ 2026-03-23 03:58:42
● 2026-03-23 04:35:40
○ 2026-03-23 06:35:36
● 2026-03-23 09:30:12
○ 2026-03-23 11:15:10
○ 2026-03-25 01:31:32
● 2026-03-25 06:14:58
○ 2026-03-25 10:39:44
● 2026-07-14 00:56:42
○ 2026-07-14 06:35:56
● 2026-07-15 11:56:38
○ 2026-07-15 13:22:40
● 2026-07-18 17:24:28
○ 2026-07-18 18:09:36
● 2026-08-07 22:42:22
○ 2026-08-08 08:18:04
○ 2026-08-09 17:23:48

○A18.165.140.562026-03-23 → 2026-08-07 · 20 obs

○A18.165.140.582026-03-23 → 2026-08-07 · 20 obs

○A18.165.140.772026-03-23 → 2026-08-07 · 20 obs

○A18.165.9.152026-03-21 → 2026-03-21 · 5 obs

○ 2026-03-14 18:02:30
● 2026-03-21 08:43:58
● 2026-03-21 09:24:56
○ 2026-03-21 16:05:40
○ 2026-08-09 17:23:48

○A18.165.9.402026-03-21 → 2026-03-21 · 5 obs

○ 2026-03-14 18:02:30
● 2026-03-21 08:43:58
● 2026-03-21 09:24:56
○ 2026-03-21 16:05:40
○ 2026-08-09 17:23:48

○A18.165.9.602026-03-21 → 2026-03-21 · 5 obs

○ 2026-03-14 18:02:30
● 2026-03-21 08:43:58
● 2026-03-21 09:24:56
○ 2026-03-21 16:05:40
○ 2026-08-09 17:23:48

○A18.165.9.822026-03-21 → 2026-03-21 · 5 obs

○ 2026-03-14 18:02:30
● 2026-03-21 08:43:58
● 2026-03-21 09:24:56
○ 2026-03-21 16:05:40
○ 2026-08-09 17:23:48

○A18.173.233.1062026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-21 21:17:18
● 2026-03-22 12:35:44
○ 2026-03-22 18:35:32
○ 2026-08-09 17:23:48

○A18.173.233.282026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-21 21:17:18
● 2026-03-22 12:35:44
○ 2026-03-22 18:35:32
○ 2026-08-09 17:23:48

○A18.173.233.392026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-21 21:17:18
● 2026-03-22 12:35:44
○ 2026-03-22 18:35:32
○ 2026-08-09 17:23:48

○A18.173.233.72026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-21 21:17:18
● 2026-03-22 12:35:44
○ 2026-03-22 18:35:32
○ 2026-08-09 17:23:48

○A18.239.168.1152026-04-20 → 2026-05-06 · 17 obs

○ 2026-04-16 17:36:36
● 2026-04-20 18:58:34
○ 2026-04-20 20:15:50
○ 2026-04-21 00:41:06
● 2026-04-21 03:19:48
● 2026-04-21 08:22:20
○ 2026-04-21 12:19:06
○ 2026-04-23 07:36:58
● 2026-04-23 12:50:00
○ 2026-04-23 14:24:42
○ 2026-04-23 23:14:54
● 2026-04-24 00:36:28
○ 2026-04-24 05:55:42
○ 2026-05-06 16:54:04
● 2026-05-06 19:37:24
○ 2026-05-06 22:01:06
○ 2026-08-09 17:23:48

○A18.239.168.1262026-04-20 → 2026-05-06 · 17 obs

○A18.239.168.132026-04-20 → 2026-05-06 · 17 obs

○A18.239.168.62026-04-20 → 2026-05-06 · 17 obs

○A18.66.255.1162026-06-18 → 2026-06-18 · 5 obs

○ 2026-06-16 12:18:18
● 2026-06-18 00:55:20
● 2026-06-18 03:58:00
○ 2026-06-18 06:52:04
○ 2026-08-09 17:23:48

○A18.66.255.132026-06-18 → 2026-06-18 · 5 obs

○ 2026-06-16 12:18:18
● 2026-06-18 00:55:20
● 2026-06-18 03:58:00
○ 2026-06-18 06:52:04
○ 2026-08-09 17:23:48

○A18.66.255.152026-06-18 → 2026-06-18 · 5 obs

○ 2026-06-16 12:18:18
● 2026-06-18 00:55:20
● 2026-06-18 03:58:00
○ 2026-06-18 06:52:04
○ 2026-08-09 17:23:48

○A18.66.255.412026-06-18 → 2026-06-18 · 5 obs

○ 2026-06-16 12:18:18
● 2026-06-18 00:55:20
● 2026-06-18 03:58:00
○ 2026-06-18 06:52:04
○ 2026-08-09 17:23:48

○A18.67.233.1172026-06-01 → 2026-06-04 · 13 obs

○ 2026-06-01 20:10:42
● 2026-06-01 21:39:08
○ 2026-06-01 22:19:16
○ 2026-06-03 15:28:34
● 2026-06-04 00:51:34
○ 2026-06-04 01:32:18
○ 2026-06-04 05:39:24
● 2026-06-04 08:16:56
○ 2026-06-04 09:20:18
○ 2026-06-04 13:52:10
● 2026-06-04 17:02:32
○ 2026-06-04 18:32:44
○ 2026-08-09 17:23:48

○A18.67.233.1272026-06-01 → 2026-06-04 · 13 obs

○A18.67.233.622026-06-01 → 2026-06-04 · 13 obs

○A18.67.233.682026-06-01 → 2026-06-04 · 13 obs

○A3.165.232.1032026-03-29 → 2026-03-29 · 4 obs

○ 2026-03-28 15:33:52
● 2026-03-29 17:35:30
○ 2026-03-29 21:05:30
○ 2026-08-09 17:23:48

○A3.165.232.1292026-03-29 → 2026-03-29 · 4 obs

○ 2026-03-28 15:33:52
● 2026-03-29 17:35:30
○ 2026-03-29 21:05:30
○ 2026-08-09 17:23:48

○A3.165.232.172026-03-29 → 2026-03-29 · 4 obs

○ 2026-03-28 15:33:52
● 2026-03-29 17:35:30
○ 2026-03-29 21:05:30
○ 2026-08-09 17:23:48

○A3.165.232.402026-03-29 → 2026-03-29 · 4 obs

○ 2026-03-28 15:33:52
● 2026-03-29 17:35:30
○ 2026-03-29 21:05:30
○ 2026-08-09 17:23:48

○A3.166.192.1002026-07-14 → 2026-07-31 · 18 obs

○ 2026-07-14 06:35:56
● 2026-07-14 12:19:12
○ 2026-07-14 14:15:08
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○A3.166.192.432026-07-14 → 2026-07-31 · 18 obs

○A3.166.192.492026-07-14 → 2026-07-31 · 18 obs

○A3.166.192.972026-07-14 → 2026-07-31 · 18 obs

○A3.167.183.172026-05-19 → 2026-07-02 · 16 obs

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○A3.167.183.22026-05-19 → 2026-07-02 · 16 obs

○A3.167.183.532026-05-19 → 2026-07-02 · 16 obs

○A3.167.183.762026-05-19 → 2026-07-02 · 16 obs

○A3.167.192.492026-02-20 → 2026-08-06 · 22 obs

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○A3.167.192.542026-02-20 → 2026-08-06 · 22 obs

○A3.167.192.772026-02-20 → 2026-08-06 · 22 obs

○A3.167.192.822026-02-20 → 2026-08-06 · 22 obs

●A3.170.19.1082026-02-21 → 2026-08-09 · 24 obs

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●A3.170.19.1102026-02-21 → 2026-08-09 · 24 obs

●A3.170.19.212026-02-21 → 2026-08-09 · 24 obs

●A3.170.19.852026-02-21 → 2026-08-09 · 24 obs

○A3.174.59.432026-04-11 → 2026-07-28 · 17 obs

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○A3.174.59.452026-04-11 → 2026-07-28 · 17 obs

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○A3.174.59.962026-04-11 → 2026-07-28 · 17 obs

○A3.174.83.1012026-03-28 → 2026-08-08 · 31 obs

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○A3.174.83.1052026-03-28 → 2026-08-08 · 31 obs

○A3.174.83.1232026-03-28 → 2026-08-08 · 31 obs

○A3.174.83.272026-03-28 → 2026-08-08 · 31 obs

○A52.84.118.1292026-03-07 → 2026-03-07 · 4 obs

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○A52.84.118.172026-03-07 → 2026-03-07 · 4 obs

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○A52.84.118.922026-03-07 → 2026-03-07 · 4 obs

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○A52.84.118.952026-03-07 → 2026-03-07 · 4 obs

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○A52.85.47.1142026-03-27 → 2026-06-15 · 15 obs

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○A52.85.47.622026-03-27 → 2026-06-15 · 15 obs

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○A52.85.47.92026-03-27 → 2026-06-15 · 15 obs

○A54.230.172.1222026-06-28 → 2026-06-28 · 4 obs

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○A54.230.172.462026-06-28 → 2026-06-28 · 4 obs

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○A54.230.172.482026-06-28 → 2026-06-28 · 4 obs

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○A54.230.172.562026-06-28 → 2026-06-28 · 4 obs

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● 2026-06-28 03:56:26
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🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
software-carpentry.org	ns-1908.awsdns-46.co.uk, ns-1473.awsdns-56.org, ns-391.awsdns-48.com, ns-597.awsdns-10.net	2 records

✅ Authoritative Response

Server:205.251.193.135

NS records: ns-1908.awsdns-46.co.uk, ns-1473.awsdns-56.org, ns-391.awsdns-48.com, ns-597.awsdns-10.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for software-carpentry.org (unsigned zone)

⏱️ Timing

Total: 2227ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`3.170.19.110, 3.170.19.85...`
NS	4	`ns-1473.awsdns-56.org, ns-1908.awsdns-46.co.uk...`
MX	2	`mxa.mailgun.org (pri: 10), mxb.mailgun.org (pri: 10)`
TXT	4	`google-site-verification=Gl_N2s1FuOXw99b, v=spf1 include:emailsrvr.com ~all...`
SOA	1	`ns-391.awsdns-48.com awsdns-hostmaster.a`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-1473.awsdns-56.org, ns-1473.awsdns-56.org)

Analysis

Hierarchy

vps1.software-carpentry.org and files.software-carpentry.org each fall under software-carpentry.org as their parent domain.

IP Addresses

software-carpentry.org points to the four IP addresses 3.170.19.21, 3.170.19.85, 3.170.19.108 and 3.170.19.110.

Name Servers

The NS records for software-carpentry.org point to four name servers: ns-391.awsdns-48.com, ns-597.awsdns-10.net, ns-1473.awsdns-56.org and ns-1908.awsdns-46.co.uk.

At least some of software-carpentry.org's name servers are shared with other domains, for example e-thru.com, freshemail.co, helpknow.net and two more.

Four hostnames, each resolving to a pair of IP addresses: ns-391.awsdns-48.com directs to 205.251.193.135 and 2600:9000:5301:8700::1; ns-597.awsdns-10.net directs to 205.251.194.85 and 2600:9000:5302:5500::1; ns-1473.awsdns-56.org directs to 205.251.197.193 and 2600:9000:5305:c100::1; ns-1908.awsdns-46.co.uk directs to 205.251.199.116 and 2600:9000:5307:7400::1.

Mail Servers

software-carpentry.org is served by two mail servers, mxa.mailgun.org and mxb.mailgun.org.

Among the domains sharing a mail server setup with software-carpentry.org are dofus2.org, talaentertainment.com, homesbynova.com and two others.

There is at least a partial MX overlap between software-carpentry.org and other domains, including invidiatrade.com, viensjouer.com, unionsd.incidentiq.com and two others.

These mail servers often co-occur with the mail servers alt2.aspmx.l.google.com.

mxa.mailgun.org and mxb.mailgun.org both resolve to the same single IP address: 34.149.254.5.

mxa.mailgun.org and mxb.mailgun.org are host names that each point to 34.149.254.5 IP addresses.