`masteringsql.com`

DNSSEC	⚠️ Not signed
A	3.33.130.190^{🇺🇸 Amazon3.33.128.0/20}
		PTR	`a2aa9ff50de748dbe.awsglobalaccelerator.com`
A	15.197.148.33^{🇺🇸 Amazon15.197.144.0/20}
NS	`ns41.domaincontrol.com` ⭐
		A	2603:5:2142::15^{🇺🇸 GODADDY-DNS2603:5:2140::/44}
			PTR	`ns41.domaincontrol.com`
		A	97.74.100.21^{🇺🇸 GODADDY-DNS97.74.100.0/23}
			PTR	`ns41.domaincontrol.com`
NS	`ns42.domaincontrol.com`
		A	2603:5:2242::15^{🇺🇸 GODADDY-DNS2603:5:2240::/44}
			PTR	`ns42.domaincontrol.com`
		A	173.201.68.21^{🇺🇸 GODADDY-DNS173.201.68.0/23}
			PTR	`ns42.domaincontrol.com`
MX	`smtp.secureserver.net` ⭐
		A	216.69.141.71^{🇺🇸 AS398101216.69.140.0/22}
			PTR	`osplibsmtp01-v01.prod.phx3.secureserver.net`
		A	216.69.141.84^{🇺🇸 AS398101216.69.140.0/22}
			PTR	`osplibsmtp02-v01.prod.phx3.secureserver.net`
		A	216.69.141.113^{🇺🇸 AS398101216.69.140.0/22}
			PTR	`osplibsmtp03-v01.prod.phx3.secureserver.net`
MX	`mailstore1.secureserver.net`⁽¹⁰⁾
		A	216.69.141.78^{🇺🇸 AS398101216.69.140.0/22}
			PTR	`osplibsmtp01-v02.prod.phx3.secureserver.net`
		A	216.69.141.114^{🇺🇸 AS398101216.69.140.0/22}
			PTR	`osplibsmtp03-v02.prod.phx3.secureserver.net`
		A	216.69.141.162^{🇺🇸 AS398101216.69.140.0/22}
			PTR	`osplibsmtp02-v02.prod.phx3.secureserver.net`
SOA	`ns41.domaincontrol.com`dns@jomax.net 2023-09-19 #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=1774662362

Same first word

masteringsql.com

DNS History

10 records (6 active, 4 former)

●NSns41.domaincontrol.com2016-01-13 → 2026-03-28 · 3 obs

○ 2015-10-22 07:12:58
● 2016-01-13 19:38:04
● 2026-03-28 02:15:56

●NSns42.domaincontrol.com2016-01-13 → 2026-03-28 · 3 obs

○ 2015-10-22 07:12:58
● 2016-01-13 19:38:04
● 2026-03-28 02:15:56

○NSns43.domaincontrol.com2008-03-16 → 2008-03-16 · 3 obs

● 2008-03-16 13:55:14
○ 2015-10-22 07:12:58
○ 2026-03-28 02:15:56

○NSns44.domaincontrol.com2008-03-16 → 2008-03-16 · 3 obs

● 2008-03-16 13:55:14
○ 2015-10-22 07:12:58
○ 2026-03-28 02:15:56

●MXmailstore1.secureserver.net2008-03-16 → 2026-03-28 · 4 obs

● 2008-03-16 13:55:14
○ 2015-10-22 07:12:58
● 2016-01-13 19:38:04
● 2026-03-28 02:15:56

●MXsmtp.secureserver.net2008-03-16 → 2026-03-28 · 4 obs

● 2008-03-16 13:55:14
○ 2015-10-22 07:12:58
● 2016-01-13 19:38:04
● 2026-03-28 02:15:56

●A15.197.148.332026-03-28 → 2026-03-28 · 3 obs

○ 2017-09-27 14:45:34
● 2026-03-28 02:15:54
● 2026-03-28 02:15:56

●A3.33.130.1902026-03-28 → 2026-03-28 · 3 obs

○ 2017-09-27 14:45:34
● 2026-03-28 02:15:54
● 2026-03-28 02:15:56

○A50.63.202.582016-01-13 → 2017-09-27 · 5 obs

○ 2015-10-22 07:12:58
● 2016-01-13 19:38:04
● 2017-09-27 14:45:34
○ 2026-03-28 02:15:54
○ 2026-03-28 02:15:56

○A68.178.254.2052008-03-16 → 2008-03-16 · 3 obs

● 2008-03-16 13:55:14
○ 2015-10-22 07:12:58
○ 2026-03-28 02:15:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, d.gtld-servers.net, g.gtld-servers.net, h.gtld-servers.net...	-
masteringsql.com	ns41.domaincontrol.com, ns42.domaincontrol.com	4 records

✅ Authoritative Response

Server:173.201.68.21

NS records: ns41.domaincontrol.com, ns42.domaincontrol.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for masteringsql.com (unsigned zone)

⏱️ Timing

Total: 90ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`3.33.130.190, 15.197.148.33`
NS	2	`ns41.domaincontrol.com, ns42.domaincontrol.com`
MX	2	`mailstore1.secureserver.net (pri: 10), smtp.secureserver.net (pri: 0)`
SOA	1	`ns41.domaincontrol.com dns.jomax.net`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns41.domaincontrol.com, ns41.domaincontrol.com, ns42.domaincontrol.com...)

Analysis

IP Addresses

Two IP numbers are pointed to by masteringsql.com: 3.33.130.190 and 15.197.148.33.

other host names include ifeast.net, fetlifer.com, therosenlunds.com, benic.org and barackobiden.com; they share IP numbers with masteringsql.com.

Name Servers

Two name servers ns41.domaincontrol.com and ns42.domaincontrol.com handle the delegation for masteringsql.com.

masteringsql.com shares the same name server setup as other domains, for instance maxwellcapitalrealty.ca, greenhillapp.com, donkeedomains.com, brickheadscollectables.com and gondorresearch.com.

masteringsql.com shares name servers with other domains at least partially, for example sierraproductiva.org.

Host names with two IP numbers:

ns41.domaincontrol.com points to 2603:5:2142::15 and 97.74.100.21.

ns42.domaincontrol.com points to 2603:5:2242::15 and 173.201.68.21.

Mail Servers

masteringsql.com is handled by two mail servers: mailstore1.secureserver.net and smtp.secureserver.net.

masteringsql.com uses the same mail server setup as other domains, for instance plumbhouse.co.uk, chrysleremissionscase.com, russell.support, quux.co and piersevenbarandgrill.com.

masteringsql.com shares at least some mail servers with other domains, for instance theradiosurgerysociety.org.

Host names with three IP numbers:

mailstore1.secureserver.net points to: 216.69.141.78, 216.69.141.114 and 216.69.141.162.

smtp.secureserver.net points to: 216.69.141.71, 216.69.141.84 and 216.69.141.113.

masteringsql.com - robtex.com