sentrysecurity.co - dns.ninja

`sentrysecurity.co`

DNSSEC	⚠️ Not signed
A	54.158.38.73^{🇺🇸 Amazon54.156.0.0/14 EC2 IAD prefix}
		PTR	`ec2-54-158-38-73.compute-1.amazonaws.com`
NS	`ns-342.awsdns-42.com` ⭐
		A	2600:9000:5301:5600::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-342.awsdns-42.com`
		A	205.251.193.86^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-342.awsdns-42.com`
NS	`ns-1191.awsdns-20.org`
		A	2600:9000:5304:a700::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1191.awsdns-20.org`
		A	205.251.196.167^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1191.awsdns-20.org`
NS	`ns-1593.awsdns-07.co.uk`
		A	2600:9000:5306:3900::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1593.awsdns-07.co.uk`
		A	205.251.198.57^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1593.awsdns-07.co.uk`
NS	`ns-615.awsdns-12.net`
		A	2600:9000:5302:6700::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-615.awsdns-12.net`
		A	205.251.194.103^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-615.awsdns-12.net`
MX	`sentrysecurity-co.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c91d::a^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-co1pr21cu00202.inbound.protection.outlook.com`
		A	2a01:111:f403:c931::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sa9pr03cu00201.inbound.protection.outlook.com`
		A	2a01:111:f403:f804::3^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-co1pr03cu00403.inbound.protection.outlook.com`
		A	2a01:111:f403:f90a::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bn8pr03cu00201.inbound.protection.outlook.com`
		A	52.101.9.5^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-mn2pr04cu00205.inbound.protection.outlook.com`
		A	52.101.41.28^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sj0pr03cu01504.inbound.protection.outlook.com`
		A	52.101.50.1^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-co1pr05cu00401.inbound.protection.outlook.com`
		A	52.101.50.13^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-mw2pr02cu00605.inbound.protection.outlook.com`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
SOA	`ns-342.awsdns-42.com`awsdns-hostmaster@amazon.com serial=1

`co`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns0.centralnic.net` ⭐
	NS	`a.registrydns.co`
	NS	`b.registrydns.co`
	NS	`c.registrydns.co`
	NS	`d.registrydns.co`
	SOA	`ns0.centralnic.net`hostmaster@centralnic.net serial=1759719533

Same first word

sentrysecurity.co

sentrysecurity.net

sentrysecurity.com

sentrysecurity.info

sentrysecurity.us

sentrysecurity.biz

Similar names

securitysentry.com

DNS History

9 records (6 active, 3 former)

●NSns-1191.awsdns-20.org2026-07-29 → 2026-07-29 · 2 obs

○ 2017-04-11 00:48:34
● 2026-07-29 16:53:14

●NSns-1593.awsdns-07.co.uk2026-07-29 → 2026-07-29 · 2 obs

○ 2017-04-11 00:48:34
● 2026-07-29 16:53:14

●NSns-342.awsdns-42.com2026-07-29 → 2026-07-29 · 2 obs

○ 2017-04-11 00:48:34
● 2026-07-29 16:53:14

●NSns-615.awsdns-12.net2026-07-29 → 2026-07-29 · 2 obs

○ 2017-04-11 00:48:34
● 2026-07-29 16:53:14

○NSns25.domaincontrol.com2015-07-05 → 2017-04-11 · 3 obs

● 2015-07-05 11:07:14
● 2017-04-11 00:48:34
○ 2026-07-29 16:53:14

○NSns26.domaincontrol.com2015-07-05 → 2017-04-11 · 3 obs

● 2015-07-05 11:07:14
● 2017-04-11 00:48:34
○ 2026-07-29 16:53:14

●MXsentrysecurity-co.mail.protection.outlook.com2015-07-05 → 2026-07-29 · 2 obs

● 2015-07-05 11:07:14
● 2026-07-29 16:53:14

○A50.63.202.482015-07-05 → 2017-04-11 · 3 obs

● 2015-07-05 11:07:14
● 2017-04-11 00:48:34
○ 2026-07-29 16:53:14

●A54.158.38.732026-07-29 → 2026-07-29 · 2 obs

○ 2017-04-11 00:48:34
● 2026-07-29 16:53:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
co	c.registrydns.co, b.registrydns.co, d.registrydns.co, a.registrydns.co	-
sentrysecurity.co	ns-615.awsdns-12.net, ns-1593.awsdns-07.co.uk, ns-342.awsdns-42.com, ns-1191.awsdns-20.org	-

✅ Authoritative Response

Server:205.251.194.103

NS records: ns-615.awsdns-12.net, ns-1593.awsdns-07.co.uk, ns-342.awsdns-42.com, ns-1191.awsdns-20.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sentrysecurity.co (unsigned zone)

⏱️ Timing

Total: 312ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`54.158.38.73`
NS	4	`ns-1191.awsdns-20.org, ns-1593.awsdns-07.co.uk...`
MX	1	`sentrysecurity-co.mail.protection.outloo`
TXT	1	`v=spf1 include:spf.protection.outlook.co`
SOA	1	`ns-342.awsdns-42.com awsdns-hostmaster.a`

Analysis

IP Addresses

sentrysecurity.co has exactly one IP address — 54.158.38.73.

Host names like ec2-54-158-38-73.compute-1.amazonaws.com are further examples that share IP numbers with sentrysecurity.co.

Name Servers

Four name servers handle the delegation for sentrysecurity.co: ns-342.awsdns-42.com, ns-615.awsdns-12.net, ns-1191.awsdns-20.org and ns-1593.awsdns-07.co.uk.

The name servers of sentrysecurity.co overlap at least partially with those of other domains — among them chotsussoa.net, harmankardon.co.nz, amplifierstores.com and two more.

Each of the four hosts ns-342.awsdns-42.com, ns-615.awsdns-12.net, ns-1191.awsdns-20.org and ns-1593.awsdns-07.co.uk has two IP addresses. ns-342.awsdns-42.com points to 205.251.193.86 and 2600:9000:5301:5600::1. ns-615.awsdns-12.net points to 205.251.194.103 and 2600:9000:5302:6700::1. ns-1191.awsdns-20.org points to 205.251.196.167 and 2600:9000:5304:a700::1. ns-1593.awsdns-07.co.uk points to 205.251.198.57 and 2600:9000:5306:3900::1.

Mail Servers

sentrysecurity.co uses one mail server — sentrysecurity-co.mail.protection.outlook.com.

sentrysecurity-co.mail.protection.outlook.com has 8 IP addresses: 52.101.9.5, 52.101.41.28, 52.101.50.1 plus 5 more.