training-source.org - dns.ninja

`training-source.org`

DNSSEC	⚠️ Not signed
A	2620:0:e50:6808::20^{🇺🇸 UIOWA-AS2620:0:e50::/45 University of Iowa, Iowa City, Iowa, USA}
A	128.255.58.179^{🇺🇸 UIOWA-AS128.255.0.0/16 University of Iowa Iowa City, Iowa, USA}
NS	`ns-348.awsdns-43.com` ⭐
		A	2600:9000:5301:5c00::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-348.awsdns-43.com`
		A	205.251.193.92^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-348.awsdns-43.com`
NS	`ns-1303.awsdns-34.org`
		A	2600:9000:5305:1700::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1303.awsdns-34.org`
		A	205.251.197.23^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1303.awsdns-34.org`
NS	`ns-1629.awsdns-11.co.uk`
		A	2600:9000:5306:5d00::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1629.awsdns-11.co.uk`
		A	205.251.198.93^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1629.awsdns-11.co.uk`
NS	`ns-533.awsdns-02.net`
		A	2600:9000:5302:1500::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-533.awsdns-02.net`
		A	205.251.194.21^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-533.awsdns-02.net`
MX	`trainingsource-org02b.mail.protection.outlook.com` ⭐
		A	52.101.9.2^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-mn2pr02cu00202.inbound.protection.outlook.com`
		A	52.101.9.5^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-mn2pr04cu00205.inbound.protection.outlook.com`
		A	52.101.11.2^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sn1pr03cu00102.inbound.protection.outlook.com`
		A	52.101.11.15^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sa9pr02cu00207.inbound.protection.outlook.com`
TXT	`MS=ms73007278`
TXT	`google-site-verification=mujsvkjhDvBGTQka2r3RS0r3SCMzNTjKWhLvyGnOosI`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
SOA	`ns-348.awsdns-43.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=1784503750

Subdomains

prepareiowa.training-source.org

Same first word

training-source.org

DNS History

15 records (7 active, 8 former)

●NSns-1303.awsdns-34.org2026-03-26 → 2026-07-19 · 3 obs

○ 2017-02-05 01:18:54
● 2026-03-26 17:26:20
● 2026-07-19 23:42:04

●NSns-1629.awsdns-11.co.uk2026-03-26 → 2026-07-19 · 3 obs

○ 2017-02-05 01:18:54
● 2026-03-26 17:26:20
● 2026-07-19 23:42:04

●NSns-348.awsdns-43.com2026-03-26 → 2026-07-19 · 3 obs

○ 2017-02-05 01:18:54
● 2026-03-26 17:26:20
● 2026-07-19 23:42:04

●NSns-533.awsdns-02.net2026-03-26 → 2026-07-19 · 3 obs

○ 2017-02-05 01:18:54
● 2026-03-26 17:26:20
● 2026-07-19 23:42:04

○NSns1.dreamhost.com2015-07-11 → 2017-02-05 · 4 obs

● 2015-07-11 16:28:58
● 2017-02-05 01:18:54
○ 2026-03-26 17:26:20
○ 2026-07-19 23:42:04

○NSns2.dreamhost.com2015-07-11 → 2017-02-05 · 4 obs

● 2015-07-11 16:28:58
● 2017-02-05 01:18:54
○ 2026-03-26 17:26:20
○ 2026-07-19 23:42:04

○NSns3.dreamhost.com2015-07-11 → 2017-02-05 · 4 obs

● 2015-07-11 16:28:58
● 2017-02-05 01:18:54
○ 2026-03-26 17:26:20
○ 2026-07-19 23:42:04

○MXfltr-in1.mail.dreamhost.com2015-07-11 → 2016-05-05 · 4 obs

● 2015-07-11 16:28:58
● 2016-05-05 22:27:20
○ 2017-02-05 01:18:54
○ 2026-07-19 23:42:04

○MXfltr-in2.mail.dreamhost.com2015-07-11 → 2016-05-05 · 4 obs

● 2015-07-11 16:28:58
● 2016-05-05 22:27:20
○ 2017-02-05 01:18:54
○ 2026-07-19 23:42:04

●MXtrainingsource-org02b.mail.protection.outlook.com2026-03-26 → 2026-07-19 · 3 obs

○ 2017-02-05 01:18:54
● 2026-03-26 17:26:20
● 2026-07-19 23:42:04

○MXvade-in1.mail.dreamhost.com2017-02-05 → 2017-02-05 · 4 obs

○ 2016-05-05 22:27:20
● 2017-02-05 01:18:54
○ 2026-03-26 17:26:20
○ 2026-07-19 23:42:04

○MXvade-in2.mail.dreamhost.com2017-02-05 → 2017-02-05 · 4 obs

○ 2016-05-05 22:27:20
● 2017-02-05 01:18:54
○ 2026-03-26 17:26:20
○ 2026-07-19 23:42:04

○A128.255.237.112015-07-11 → 2017-02-05 · 4 obs

● 2015-07-11 16:28:58
● 2017-02-05 01:18:54
○ 2026-03-26 17:26:20
○ 2026-07-19 23:42:04

●A128.255.58.1792026-03-26 → 2026-07-19 · 3 obs

○ 2017-02-05 01:18:54
● 2026-03-26 17:26:20
● 2026-07-19 23:42:04

●A2620:0:e50:6808::202026-03-26 → 2026-07-19 · 3 obs

○ 2017-02-05 01:18:54
● 2026-03-26 17:26:20
● 2026-07-19 23:42:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	d0.org.afilias-nst.org, b2.org.afilias-nst.org, b0.org.afilias-nst.org	-
training-source.org	ns-533.awsdns-02.net, ns-348.awsdns-43.com, ns-1629.awsdns-11.co.uk, ns-1303.awsdns-34.org	2 records

✅ Authoritative Response

Server:205.251.198.93

NS records: ns-533.awsdns-02.net, ns-348.awsdns-43.com, ns-1629.awsdns-11.co.uk, ns-1303.awsdns-34.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for training-source.org (unsigned zone)

⏱️ Timing

Total: 605ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`128.255.58.179`
AAAA	1	`2620:0:e50:6808::20`
NS	4	`ns-1303.awsdns-34.org, ns-1629.awsdns-11.co.uk...`
MX	1	`trainingsource-org02b.mail.protection.ou`
TXT	3	`MS=ms73007278, google-site-verification=mujsvkjhDvBGTQk...`
SOA	1	`ns-348.awsdns-43.com awsdns-hostmaster.a`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-1303.awsdns-34.org, ns-1303.awsdns-34.org)

Analysis

Hierarchy

training-source.org is the parent zone for prepareiowa.training-source.org.

IP Addresses

training-source.org resolves to the IP addresses 128.255.58.179 and 2620:0:e50:6808::20

ph-ivmoodleprod.iowa.uiowa.edu and prepareiowa.training-source.org, along with other host names, share IP addresses with training-source.org.

Name Servers

Four name servers handle the delegation for training-source.org: ns-348.awsdns-43.com, ns-533.awsdns-02.net, ns-1303.awsdns-34.org and ns-1629.awsdns-11.co.uk.

training-source.org partially shares its NS delegation with several other domains, including d2nt021dyw0e6z.cloudfront.net, dxl6houvklhzf.cloudfront.net, d2j20cnvgkcndg.cloudfront.net and two others.

ns-348.awsdns-43.com, ns-533.awsdns-02.net, ns-1303.awsdns-34.org and ns-1629.awsdns-11.co.uk each carry two IP addresses. ns-348.awsdns-43.com has 205.251.193.92 and 2600:9000:5301:5c00::1; ns-533.awsdns-02.net has 205.251.194.21 and 2600:9000:5302:1500::1; ns-1303.awsdns-34.org has 205.251.197.23 and 2600:9000:5305:1700::1; ns-1629.awsdns-11.co.uk has 205.251.198.93 and 2600:9000:5306:5d00::1.

Mail Servers

training-source.org uses one mail server — trainingsource-org02b.mail.protection.outlook.com.

trainingsource-org02b.mail.protection.outlook.com points to four IP addresses: 52.101.9.2, 52.101.9.5, 52.101.11.2 and 52.101.11.15.