`schoolorganiser.com`

DNSSEC	⚠️ Not signed
A	3.33.251.168^{🇺🇸 Amazon3.33.240.0/20}
		PTR	`aec037177372cc6cd.awsglobalaccelerator.com`
A	15.197.225.128^{🇺🇸 Amazon15.197.224.0/20}
NS	`ns15.domaincontrol.com` ⭐
		A	2603:5:21b0::8^{🇺🇸 GODADDY-DNS2603:5:21b0::/44}
			PTR	`ns15.domaincontrol.com`
		A	97.74.107.8^{🇺🇸 GODADDY-DNS97.74.106.0/23}
			PTR	`ns15.domaincontrol.com`
NS	`ns16.domaincontrol.com`
		A	2603:5:22b0::8^{🇺🇸 GODADDY-DNS2603:5:22b0::/44}
			PTR	`ns16.domaincontrol.com`
		A	173.201.75.8^{🇺🇸 GODADDY-DNS173.201.74.0/23}
			PTR	`ns16.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`
TXT	`v=spf1 include:secureserver.net -all`
SOA	`ns15.domaincontrol.com`dns@jomax.net 2025-12-15 #3

`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=1776025427

Previously MX for

schoolorganiser.com

Same first word

schoolorganiser.com

DNS History

15 records (6 active, 9 former)

○NSns.123-reg.co.uk2018-10-31 → 2018-10-31 · 4 obs

○ 2017-02-12 08:34:10
● 2018-10-31 12:39:30
○ 2026-04-01 07:57:22
○ 2026-04-12 20:29:44

○NSns.liquidweb.com2015-08-18 → 2016-03-01 · 4 obs

● 2015-08-18 01:18:32
● 2016-03-01 23:58:08
○ 2017-02-12 08:34:10
○ 2026-04-12 20:29:44

○NSns1.liquidweb.com2015-08-18 → 2016-03-01 · 4 obs

● 2015-08-18 01:18:32
● 2016-03-01 23:58:08
○ 2017-02-12 08:34:10
○ 2026-04-12 20:29:44

●NSns15.domaincontrol.com2026-04-01 → 2026-04-12 · 3 obs

○ 2018-10-31 12:39:30
● 2026-04-01 07:57:22
● 2026-04-12 20:29:44

●NSns16.domaincontrol.com2026-04-01 → 2026-04-12 · 3 obs

○ 2018-10-31 12:39:30
● 2026-04-01 07:57:22
● 2026-04-12 20:29:44

○NSns2.123-reg.co.uk2018-10-31 → 2018-10-31 · 4 obs

○ 2017-02-12 08:34:10
● 2018-10-31 12:39:30
○ 2026-04-01 07:57:22
○ 2026-04-12 20:29:44

●MXmailstore1.secureserver.net2026-04-01 → 2026-04-12 · 3 obs

○ 2018-10-31 12:39:30
● 2026-04-01 07:57:22
● 2026-04-12 20:29:44

○MXmx0.123-reg.co.uk2018-10-31 → 2018-10-31 · 4 obs

○ 2017-02-12 08:34:10
● 2018-10-31 12:39:30
○ 2026-04-01 07:57:22
○ 2026-04-12 20:29:44

○MXmx1.123-reg.co.uk2018-10-31 → 2018-10-31 · 4 obs

○ 2017-02-12 08:34:10
● 2018-10-31 12:39:30
○ 2026-04-01 07:57:22
○ 2026-04-12 20:29:44

○MXschoolorganiser.com2015-08-18 → 2016-03-01 · 4 obs

● 2015-08-18 01:18:32
● 2016-03-01 23:58:08
○ 2017-02-12 08:34:10
○ 2026-04-12 20:29:44

●MXsmtp.secureserver.net2026-04-01 → 2026-04-12 · 3 obs

○ 2018-10-31 12:39:30
● 2026-04-01 07:57:22
● 2026-04-12 20:29:44

●A15.197.225.1282026-04-01 → 2026-04-12 · 3 obs

○ 2018-10-31 12:39:30
● 2026-04-01 07:57:22
● 2026-04-12 20:29:44

●A3.33.251.1682026-04-01 → 2026-04-12 · 3 obs

○ 2018-10-31 12:39:30
● 2026-04-01 07:57:22
● 2026-04-12 20:29:44

○A50.28.91.1852015-08-18 → 2016-03-01 · 4 obs

● 2015-08-18 01:18:32
● 2016-03-01 23:58:08
○ 2017-02-12 08:34:10
○ 2026-04-12 20:29:44

○A94.136.40.512018-10-31 → 2018-10-31 · 4 obs

○ 2017-02-12 08:34:10
● 2018-10-31 12:39:30
○ 2026-04-01 07:57:22
○ 2026-04-12 20:29:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
schoolorganiser.com	ns15.domaincontrol.com, ns16.domaincontrol.com	4 records

✅ Authoritative Response

Server:173.201.75.8

NS records: ns15.domaincontrol.com, ns16.domaincontrol.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for schoolorganiser.com (unsigned zone)

⏱️ Timing

Total: 138ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`15.197.225.128, 3.33.251.168`
NS	2	`ns15.domaincontrol.com, ns16.domaincontrol.com`
MX	2	`mailstore1.secureserver.net (pri: 10), smtp.secureserver.net (pri: 0)`
TXT	1	`v=spf1 include:secureserver.net -all`
SOA	1	`ns15.domaincontrol.com dns.jomax.net`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns15.domaincontrol.com, ns15.domaincontrol.com, ns16.domaincontrol.com...)

Analysis

IP Addresses

schoolorganiser.com resolves to two IPs: 3.33.251.168 and 15.197.225.128.

other host names for instance aspengroupco.com, sundojo.com, a4re.com, homelandcommunities.com and jackiesellsre.com share IP numbers with schoolorganiser.com.

Name Servers

schoolorganiser.com is delegated to two name servers: ns15.domaincontrol.com and ns16.domaincontrol.com.

schoolorganiser.com shares the same name server setup as other domains, for example prohearinc.com, bumbleandpip.com, vtp-online.de, leead.net and lnd-school.com.

Host names with two IP numbers:

ns15.domaincontrol.com points to 2603:5:21b0::8 and 97.74.107.8

ns16.domaincontrol.com points to 2603:5:22b0::8 and 173.201.75.8

Mail Servers

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

schoolorganiser.com shares the same mail server setup as other domains, for instance kompoz.info, guaranteedautomotive.ca, prestigewealthmanagement.ca, bcj.me and interbankcorrespondent.com.

schoolorganiser.com shares some mail servers with other domains, at least partially, for instance chrisgarey.com and oceancarclub.com.

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.

schoolorganiser.com - robtex.com