`captainsschool.com`

DNSSEC	⚠️ Not signed
A	50.63.25.137^{🇺🇸 AS39810150.63.24.0/22 GCN Allocation}
		PTR	`137.25.63.50.host.secureserver.net`
NS	`ns11.domaincontrol.com` ⭐
		A	2603:5:2190::6^{🇺🇸 GODADDY-DNS2603:5:2190::/44}
			PTR	`ns11.domaincontrol.com`
		A	97.74.105.6^{🇺🇸 GODADDY-DNS97.74.104.0/23}
			PTR	`ns11.domaincontrol.com`
NS	`ns12.domaincontrol.com`
		A	2603:5:2290::6^{🇺🇸 GODADDY-DNS2603:5:2290::/44}
			PTR	`ns12.domaincontrol.com`
		A	173.201.73.6^{🇺🇸 GODADDY-DNS173.201.72.0/23}
			PTR	`ns12.domaincontrol.com`
MX	`mx1-usg2.ppe-hosted.com` ⭐
		A	98.85.123.215^{🇺🇸 Amazon98.80.0.0/13 EC2 IAD Prefix}
			PTR	`mx1-usg2.ppe-hosted.com`
MX	`mx2-usg2.ppe-hosted.com` ⭐
		A	23.21.114.81^{🇺🇸 Amazon23.20.0.0/15 EC2 IAD prefix}
			PTR	`mx2-usg2.ppe-hosted.com`
MX	`mx3-usg2.ppe-hosted.com` ⭐
		A	34.231.165.252^{🇺🇸 Amazon34.224.0.0/12 EC2 Region prefix}
			PTR	`mx3-usg2.ppe-hosted.com`
TXT	`v=spf1 include:_spf-usg2.ppe-hosted.com include:secureserver.net ~all`
TXT	`NETORGFT7402840.onmicrosoft.com`
TXT	`veb663b21366g605ujl2ibj0vg`
SOA	`ns11.domaincontrol.com`dns@jomax.net 2025-12-17 #0

`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

WOT: SAFE (62/100)

Subdomains

www.captainsschool.com

Same first word

captainsschool.com

Similar names

captainschools.org

DNS History

15 records (6 active, 9 former)

○NSns1.worldnic.com2015-06-02 → 2016-01-26 · 4 obs

● 2015-06-02 01:25:16
● 2016-01-26 19:40:50
○ 2016-06-19 06:19:58
○ 2026-03-23 05:28:26

●NSns11.domaincontrol.com2026-03-23 → 2026-03-23 · 2 obs

○ 2018-11-21 00:57:04
● 2026-03-23 05:28:26

●NSns12.domaincontrol.com2026-03-23 → 2026-03-23 · 2 obs

○ 2018-11-21 00:57:04
● 2026-03-23 05:28:26

○NSns2.worldnic.com2015-06-02 → 2016-01-26 · 4 obs

● 2015-06-02 01:25:16
● 2016-01-26 19:40:50
○ 2016-06-19 06:19:58
○ 2026-03-23 05:28:26

○NSns63.domaincontrol.com2016-06-19 → 2018-11-21 · 4 obs

○ 2016-01-26 19:40:50
● 2016-06-19 06:19:58
● 2018-11-21 00:57:04
○ 2026-03-23 05:28:26

○NSns64.domaincontrol.com2016-06-19 → 2018-11-21 · 4 obs

○ 2016-01-26 19:40:50
● 2016-06-19 06:19:58
● 2018-11-21 00:57:04
○ 2026-03-23 05:28:26

○MXmailstore1.secureserver.net2016-06-19 → 2018-11-21 · 4 obs

○ 2016-01-26 19:40:50
● 2016-06-19 06:19:58
● 2018-11-21 00:57:04
○ 2026-03-23 05:28:26

●MXmx1-usg2.ppe-hosted.com2026-03-23 → 2026-03-23 · 2 obs

○ 2018-11-21 00:57:04
● 2026-03-23 05:28:26

●MXmx2-usg2.ppe-hosted.com2026-03-23 → 2026-03-23 · 2 obs

○ 2018-11-21 00:57:04
● 2026-03-23 05:28:26

●MXmx3-usg2.ppe-hosted.com2026-03-23 → 2026-03-23 · 2 obs

○ 2018-11-21 00:57:04
● 2026-03-23 05:28:26

○MXpetchkin.atbeach.com2015-06-02 → 2016-01-26 · 4 obs

● 2015-06-02 01:25:16
● 2016-01-26 19:40:50
○ 2016-06-19 06:19:58
○ 2026-03-23 05:28:26

○MXsmtp.secureserver.net2016-06-19 → 2018-11-21 · 4 obs

○ 2016-01-26 19:40:50
● 2016-06-19 06:19:58
● 2018-11-21 00:57:04
○ 2026-03-23 05:28:26

○A107.180.36.992016-06-19 → 2018-11-21 · 4 obs

○ 2016-01-26 19:40:50
● 2016-06-19 06:19:58
● 2018-11-21 00:57:04
○ 2026-03-23 05:28:26

○A184.172.10.22015-06-02 → 2016-01-26 · 4 obs

● 2015-06-02 01:25:16
● 2016-01-26 19:40:50
○ 2016-06-19 06:19:58
○ 2026-03-23 05:28:26

●A50.63.25.1372026-03-23 → 2026-03-23 · 2 obs

○ 2018-11-21 00:57:04
● 2026-03-23 05:28:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	m.gtld-servers.net, f.gtld-servers.net, j.gtld-servers.net, c.gtld-servers.net...	-
captainsschool.com	ns11.domaincontrol.com, ns12.domaincontrol.com	4 records

✅ Authoritative Response

Server:97.74.105.6

NS records: ns11.domaincontrol.com, ns12.domaincontrol.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for captainsschool.com (unsigned zone)

⏱️ Timing

Total: 117ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`50.63.25.137`
NS	2	`ns11.domaincontrol.com, ns12.domaincontrol.com`
MX	3	`mx1-usg2.ppe-hosted.com (pri: 0), mx2-usg2.ppe-hosted.com (pri: 0)...`
TXT	3	`v=spf1 include:_spf-usg2.ppe-hosted.com , NETORGFT7402840.onmicrosoft.com...`
SOA	1	`ns11.domaincontrol.com dns.jomax.net`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns11.domaincontrol.com, ns11.domaincontrol.com, ns12.domaincontrol.com...)

Analysis

Hierarchy

The parent of www.captainsschool.com is captainsschool.com.

IP Addresses

captainsschool.com points to an IP address: 50.63.25.137.

Other host names, for instance 137.25.63.50.host.secureserver.net and ecaptainsschool.com, share IP numbers with captainsschool.com.

Name Servers

Two name servers ns11.domaincontrol.com and ns12.domaincontrol.com handle the delegation for captainsschool.com.

captainsschool.com shares the same name server setup as other domains, for instance learnnebraska.org, dlb-legal.com, stem9.com, cartonboard.info and integrativevetservices.net.

Host names with two IP numbers:

ns11.domaincontrol.com points to 2603:5:2190::6 and 97.74.105.6.

ns12.domaincontrol.com points to 2603:5:2290::6 and 173.201.73.6.

Mail Servers

Three mail servers handle captainsschool.com: mx1-usg2.ppe-hosted.com, mx2-usg2.ppe-hosted.com and mx3-usg2.ppe-hosted.com.

captainsschool.com shares at least partially some mail servers with other domains, for instance rgm.me, 1wbservices.com, slankarddesigns.com, baldwinsconsulting.com and pfmassoc.com.

Host names with one IP:

mx1-usg2.ppe-hosted.com points to 98.85.123.215; mx2-usg2.ppe-hosted.com points to 23.21.114.81; mx3-usg2.ppe-hosted.com points to 34.231.165.252.

captainsschool.com - robtex.com