securityinstructor.com - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`securityinstructor.com`

DNSSEC	⚠️ Not signed
A	13.248.169.48^{🇺🇸 Amazon13.248.160.0/20}
		PTR	`a904c694c05102f30.awsglobalaccelerator.com`
A	76.223.54.146^{🇺🇸 Amazon76.223.48.0/20}
NS	`ns3.afternic.com` ⭐
		A	97.74.98.65^{🇺🇸 GODADDY-DNS97.74.98.0/23}
			PTR	`ns3.afternic.com`
NS	`ns4.afternic.com`
		A	173.201.66.65^{🇺🇸 GODADDY-DNS173.201.66.0/23}
			PTR	`ns4.namefind.com`
TXT	`v=spf1 -all`
SOA	`ns3.afternic.com`dns@jomax.net 2025-10-01 #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=1787091729

Same first word

securityinstructor.com

Similar names

ironcitystructures.com

Previous names

Next names

DNS History

11 records (4 active, 7 former)

○NSns1.sedoparking.com2015-05-08 → 2019-03-01 · 5 obs

○ 2008-03-20 12:57:28
● 2015-05-08 01:47:00
● 2019-03-01 09:58:08
○ 2026-05-19 09:47:32
○ 2026-08-18 22:39:18

○NSns2.sedoparking.com2015-05-08 → 2019-03-01 · 5 obs

○ 2008-03-20 12:57:28
● 2015-05-08 01:47:00
● 2019-03-01 09:58:08
○ 2026-05-19 09:47:32
○ 2026-08-18 22:39:18

●NSns3.afternic.com2026-05-19 → 2026-08-18 · 3 obs

○ 2019-03-01 09:58:08
● 2026-05-19 09:47:32
● 2026-08-18 22:39:18

●NSns4.afternic.com2026-05-19 → 2026-08-18 · 3 obs

○ 2019-03-01 09:58:08
● 2026-05-19 09:47:32
● 2026-08-18 22:39:18

○MXlocalhost2016-12-27 → 2019-03-01 · 5 obs

○ 2016-04-17 00:00:28
● 2016-12-27 14:34:36
● 2019-03-01 09:58:08
○ 2026-05-19 09:47:32
○ 2026-08-18 22:39:18

○MXmail.b-io.co2015-05-08 → 2015-05-08 · 4 obs

○ 2008-03-20 12:57:28
● 2015-05-08 01:47:00
○ 2015-10-09 01:02:46
○ 2026-08-18 22:39:18

○MXmail.nickstel.com2015-10-09 → 2016-04-17 · 5 obs

○ 2015-05-08 01:47:00
● 2015-10-09 01:02:46
● 2016-04-17 00:00:28
○ 2016-12-27 14:34:36
○ 2026-08-18 22:39:18

●A13.248.169.482026-05-19 → 2026-08-18 · 3 obs

○ 2019-03-01 09:58:08
● 2026-05-19 09:47:32
● 2026-08-18 22:39:18

○A72.52.4.1192015-05-08 → 2016-12-27 · 5 obs

○ 2008-03-20 12:57:28
● 2015-05-08 01:47:00
● 2016-12-27 14:34:36
○ 2019-03-01 09:58:08
○ 2026-08-18 22:39:18

●A76.223.54.1462026-05-19 → 2026-08-18 · 3 obs

○ 2019-03-01 09:58:08
● 2026-05-19 09:47:32
● 2026-08-18 22:39:18

○A91.195.240.1262019-03-01 → 2019-03-01 · 4 obs

○ 2016-12-27 14:34:36
● 2019-03-01 09:58:08
○ 2026-05-19 09:47:32
○ 2026-08-18 22:39:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
securityinstructor.com	ns3.afternic.com, ns4.afternic.com	2 records

✅ Authoritative Response

Server:97.74.98.65

NS records: ns3.afternic.com, ns4.afternic.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for securityinstructor.com (unsigned zone)

⏱️ Timing

Total: 135ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`13.248.169.48, 76.223.54.146`
NS	2	`ns3.afternic.com, ns4.afternic.com`
MX	1	`. (pri: 0)`
TXT	1	`v=spf1 -all`
SOA	1	`ns3.afternic.com dns.jomax.net`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns3.afternic.com, ns4.afternic.com)

Analysis

IP Addresses

securityinstructor.com points to the IP addresses 13.248.169.48 and 76.223.54.146

buygroup.net, kodhost.com, connectcomp.com plus two other host names have IP numbers in common with securityinstructor.com.

Name Servers

securityinstructor.com is served by two delegated name servers, ns3.afternic.com and ns4.afternic.com.

The name server configuration of securityinstructor.com is shared with other domains, for instance pigeonlofts.com, mail.outt.org, porttravel.com and two others.

At least some of securityinstructor.com's name servers are shared with other domains, for example lmusics.com, c-creation.com, ut-group.com and two more.

These name servers tend to be deployed in combination with the name servers verification-xca45ox5qyba6vycrpoay7.ns101.verify.hn and verification-gx9m4qbbvukhxvxdk2zdbk.ns101.verify.hn.

Each of ns3.afternic.com and ns4.afternic.com has one IP address: ns3.afternic.com uses 97.74.98.65 and ns4.afternic.com uses 173.201.66.65.