`sysalarm.com`

DNSSEC	⚠️ Not signed
NS	`nsh1.linkcom.pt` ⭐
		A	194.117.36.3^{🇵🇹 NOS_COMUNICACOES194.117.36.0/22 INESC - Instituto de Engenharia de Sistemas e Computadores Lisboa, PORTUGAL}
NS	`ns.linkcom.pt` ⚠️ Not in parent delegation
		A	194.117.36.1^{🇵🇹 NOS_COMUNICACOES194.117.36.0/22 INESC - Instituto de Engenharia de Sistemas e Computadores Lisboa, PORTUGAL}
			PTR	`ns.link.pt`
			PTR	`ns.linkcom.pt`
NS	`ns1.linkcom.pt` ⚠️ Not in parent delegation
		A	194.117.36.1^{🇵🇹 NOS_COMUNICACOES194.117.36.0/22 INESC - Instituto de Engenharia de Sistemas e Computadores Lisboa, PORTUGAL}
			PTR	`ns.link.pt`
			PTR	`ns.linkcom.pt`
NS	`ns2.linkcom.pt` ⚠️ Not in zone NS records
		A	194.117.36.8^{🇵🇹 NOS_COMUNICACOES194.117.36.0/22 INESC - Instituto de Engenharia de Sistemas e Computadores Lisboa, PORTUGAL}
			PTR	`ns2.link.pt`
NS	`ns3.linkcom.pt`
		A	18.197.217.220^{🇩🇪 Amazon18.196.0.0/15 EC2 FRA prefix}
			PTR	`ec2-18-197-217-220.eu-central-1.compute.amazonaws.com`
MX	`sysalarm-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca04::8^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db5pr02cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::e^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db8pr02cu00106.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::5^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am1pr04cu00105.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::e^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am7pr05cu00206.inbound.protection.outlook.com`
		A	52.101.68.8^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-du0pr03cu00100.inbound.protection.outlook.com`
		A	52.101.68.15^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db6pr03cu00107.inbound.protection.outlook.com`
		A	52.101.73.11^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am1pr04cu00103.inbound.protection.outlook.com`
		A	52.101.73.12^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am4pr0401cu00104.inbound.protection.outlook.com`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
TXT	`aynEhbTjR8IZ5TGnDLMeOVT2VCuUN6YnTWVL1D7bgj6xYXJwrYlRVgvydSMzPo689G1Y9VoP3rFEM...`
TXT	`MS=ms31152617`
SOA	`nsh1.linkcom.pt`dominios@linkcom.pt 2021-04-26 #4

`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=1776102762

Same first word

sysalarm.net

sysalarm.com

Similar names

alarmsys.com

alarmsys.ru

DNS History

7 records (6 active, 1 former)

●NSns.linkcom.pt2015-05-16 → 2026-04-13 · 2 obs

● 2015-05-16 05:46:08
● 2026-04-13 18:04:58

●NSns1.linkcom.pt2026-02-23 → 2026-04-13 · 3 obs

○ 2015-05-16 05:46:08
● 2026-02-23 23:07:04
● 2026-04-13 18:04:58

●NSns2.linkcom.pt2015-05-16 → 2026-04-13 · 2 obs

● 2015-05-16 05:46:08
● 2026-04-13 18:04:58

●NSns3.linkcom.pt2026-02-23 → 2026-04-13 · 3 obs

○ 2015-05-16 05:46:08
● 2026-02-23 23:07:04
● 2026-04-13 18:04:58

●NSnsh1.linkcom.pt2026-02-23 → 2026-04-13 · 3 obs

○ 2015-05-16 05:46:08
● 2026-02-23 23:07:04
● 2026-04-13 18:04:58

○MXmx.sysalarm.com2015-05-16 → 2016-09-19 · 4 obs

● 2015-05-16 05:46:08
● 2016-09-19 11:30:16
○ 2026-02-23 23:07:04
○ 2026-04-13 18:04:58

●MXsysalarm-com.mail.protection.outlook.com2026-02-23 → 2026-04-13 · 3 obs

○ 2016-09-19 11:30:16
● 2026-02-23 23:07:04
● 2026-04-13 18:04:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, g.gtld-servers.net, a.gtld-servers.net, m.gtld-servers.net...	-
sysalarm.com	ns1.linkcom.pt, ns2.linkcom.pt	-

✅ Authoritative Response

Server:194.117.36.1

NS records: ns1.linkcom.pt, ns2.linkcom.pt

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sysalarm.com (unsigned zone)

⏱️ Timing

Total: 618ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	3	`ns.linkcom.pt, ns2.linkcom.pt...`
MX	1	`sysalarm-com.mail.protection.outlook.com`
TXT	3	`v=spf1 include:spf.protection.outlook.co, aynEhbTjR8IZ5TGnDLMeOVT2VCuUN6YnTWVL1D7b...`
SOA	1	`nsh1.linkcom.pt dominios.linkcom.pt`

Analysis

Name Servers

sysalarm.com is delegated to five name servers: ns1.linkcom.pt, ns2.linkcom.pt, ns3.linkcom.pt, ns.linkcom.pt and nsh1.linkcom.pt.

sysalarm.com at least partially shares name servers with other domains, for instance sysalarm.net, linkconsulting.com, link101.pt, bankonbox.com and link.pt.