`securityprofessionals.nl`

DNSSEC	⚠️ Not signed
A	217.26.127.243^{🇳🇱 IU-Net217.26.112.0/20 Internet Unie Services B.V.}
		PTR	`jottenheijm02.da.bizway.nl`
NS	`ns1.dds.nl` ⭐
		A	141.255.180.130^{🇳🇱 AS-TBNLTN141.255.180.0/22 ProServe Network}
			PTR	`ns1.dds.nl`
NS	`ns2.dds.eu`
		A	136.144.233.156^{🇳🇱 TRANSIP-AS136.144.128.0/17 TransIP BV Amsterdam, The Netherlands}
			PTR	`136-144-233-156.colo.transip.net`
NS	`ns3.dds.amsterdam`
		A	85.158.250.40^{🇳🇱 AS-TBNLTN85.158.248.0/22 ProServe Network}
			PTR	`ip-space.by.zxcs.nl`
MX	`mx1.mx-relay.com` ⭐
		A	2001:550:2:61::2fc:100^{🇺🇸 COGENT2001:550::/32 Cogent Communications}
		A	38.89.254.156^{🇺🇸 AS1663338.89.254.0/23}
			PTR	`fe1-r2-in.ch03.l.antispamcloud.com`
MX	`mx2.mx-relay.com`⁽²⁰⁾
		A	2001:550:2:3::62:100^{🇺🇸 COGENT2001:550::/32 Cogent Communications}
			PTR	`fe2-r2-in.la10.l.antispamcloud.com`
		A	38.71.16.244^{🇺🇸 AS1663338.71.16.0/24}
			PTR	`fe2-r2-in.la10.l.antispamcloud.com`
MX	`mx3.mx-relay.com`⁽³⁰⁾
		A	2001:550:2:78::ca:100^{🇺🇸 COGENT2001:550::/32 Cogent Communications}
			PTR	`fe3-r2-in.atl06.l.antispamcloud.com`
		A	38.101.250.150^{🇺🇸 AS1663338.101.250.0/24}
			PTR	`fe3-r2-in.atl06.l.antispamcloud.com`
MX	`mx4.mx-relay.com`⁽⁴⁰⁾
		A	2001:550:2:61::2fc:100^{🇺🇸 COGENT2001:550::/32 Cogent Communications}
		A	38.89.254.156^{🇺🇸 AS1663338.89.254.0/23}
			PTR	`fe1-r2-in.ch03.l.antispamcloud.com`
MX	`securityprofessionals-nl.mail.protection.outlook.com`⁽⁵⁰⁾
		A	2a01:111:f403:ca04::5^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db3pr0202cu00205.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::6^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am4pr0401cu00106.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::9^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-as8pr04cu00801.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::b^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am7pr05cu00103.inbound.protection.outlook.com`
		A	52.101.68.3^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db7pr03cu00403.inbound.protection.outlook.com`
		A	52.101.68.10^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-dbbpr03cu00102.inbound.protection.outlook.com`
		A	52.101.73.11^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am1pr04cu00103.inbound.protection.outlook.com`
		A	52.101.73.24^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-as8pr05cu00300.inbound.protection.outlook.com`
TXT	`MS=ms71202017`
TXT	`MS=ms91535776`
TXT	`v=spf1 a:mail.securityprofessionals.nl ip4:62.216.2.88 ip4:134.122.48.4 ip4:2...`
SOA	`ns1.dds.nl`postmaster@securityprofessionals.nl serial=1

`nl`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns1.dns.nl` ⭐
	NS	`ns3.dns.nl`
	NS	`ns4.dns.nl`
	TXT	`nl zone update: 2026-04-06 03:00:02 +0000 (EPOCH 1775444402)`
	SOA	`ns1.dns.nl`dns@sidn.nl 2026-04-06 #6

Subdomains

mail.securityprofessionals.nl

Same first word

securityprofessionals.nl

DNS History

21 records (9 active, 12 former)

○NSns0.dds.nl2016-04-29 → 2016-04-29 · 4 obs

○ 2015-05-27 23:09:58
● 2016-04-29 21:29:26
○ 2017-01-08 15:14:54
○ 2026-04-06 03:52:46

●NSns1.dds.nl2015-05-27 → 2026-04-06 · 2 obs

● 2015-05-27 23:09:58
● 2026-04-06 03:52:46

●NSns2.dds.eu2017-01-08 → 2026-04-06 · 3 obs

○ 2016-04-29 21:29:26
● 2017-01-08 15:14:54
● 2026-04-06 03:52:46

○NSns2.dds.nl2015-05-27 → 2016-04-29 · 4 obs

● 2015-05-27 23:09:58
● 2016-04-29 21:29:26
○ 2017-01-08 15:14:54
○ 2026-04-06 03:52:46

●NSns3.dds.amsterdam2017-01-08 → 2026-04-06 · 3 obs

○ 2016-04-29 21:29:26
● 2017-01-08 15:14:54
● 2026-04-06 03:52:46

○NSns3.dds.nl2016-04-29 → 2016-04-29 · 4 obs

○ 2015-05-27 23:09:58
● 2016-04-29 21:29:26
○ 2017-01-08 15:14:54
○ 2026-04-06 03:52:46

○NSns4.dds-city.com2017-01-08 → 2019-02-23 · 5 obs

○ 2016-04-29 21:29:26
● 2017-01-08 15:14:54
● 2019-02-23 02:49:06
○ 2026-02-18 01:42:30
○ 2026-04-06 03:52:46

○MXcluster02.mx-relay.com2016-01-31 → 2019-02-23 · 5 obs

○ 2015-10-11 04:08:10
● 2016-01-31 21:43:36
● 2019-02-23 02:49:06
○ 2026-02-18 01:42:30
○ 2026-04-06 03:52:46

○MXfallbackdt.mx-relay.com2016-01-31 → 2019-02-23 · 5 obs

○ 2015-10-11 04:08:10
● 2016-01-31 21:43:36
● 2019-02-23 02:49:06
○ 2026-02-18 01:42:30
○ 2026-04-06 03:52:46

○MXforward1.dds.nl2015-05-27 → 2016-04-29 · 4 obs

● 2015-05-27 23:09:58
● 2016-04-29 21:29:26
○ 2017-01-08 15:14:54
○ 2026-04-06 03:52:46

○MXforward2.dds.nl2015-05-27 → 2016-04-29 · 4 obs

● 2015-05-27 23:09:58
● 2016-04-29 21:29:26
○ 2017-01-08 15:14:54
○ 2026-04-06 03:52:46

○MXmail.securityprofessionals.nl2015-05-27 → 2015-10-11 · 4 obs

● 2015-05-27 23:09:58
● 2015-10-11 04:08:10
○ 2016-01-31 21:43:36
○ 2026-04-06 03:52:46

●MXmx1.mx-relay.com2026-02-18 → 2026-04-06 · 3 obs

○ 2019-02-23 02:49:06
● 2026-02-18 01:42:30
● 2026-04-06 03:52:46

●MXmx2.mx-relay.com2026-02-18 → 2026-04-06 · 3 obs

○ 2019-02-23 02:49:06
● 2026-02-18 01:42:30
● 2026-04-06 03:52:46

●MXmx3.mx-relay.com2026-02-18 → 2026-04-06 · 3 obs

○ 2019-02-23 02:49:06
● 2026-02-18 01:42:30
● 2026-04-06 03:52:46

●MXmx4.mx-relay.com2026-02-18 → 2026-04-06 · 3 obs

○ 2019-02-23 02:49:06
● 2026-02-18 01:42:30
● 2026-04-06 03:52:46

●MXsecurityprofessionals-nl.mail.protection.outlook.com2026-02-18 → 2026-04-06 · 3 obs

○ 2019-02-23 02:49:06
● 2026-02-18 01:42:30
● 2026-04-06 03:52:46

●A217.26.127.2432026-02-18 → 2026-04-06 · 3 obs

○ 2019-02-23 02:49:06
● 2026-02-18 01:42:30
● 2026-04-06 03:52:46

○A62.216.2.372017-01-08 → 2019-02-23 · 5 obs

○ 2016-04-29 21:29:26
● 2017-01-08 15:14:54
● 2019-02-23 02:49:06
○ 2026-02-18 01:42:30
○ 2026-04-06 03:52:46

○A80.84.226.1942016-01-31 → 2016-04-29 · 5 obs

○ 2015-10-11 04:08:10
● 2016-01-31 21:43:36
● 2016-04-29 21:29:26
○ 2017-01-08 15:14:54
○ 2026-04-06 03:52:46

○A85.17.251.1542015-05-27 → 2015-10-11 · 4 obs

● 2015-05-27 23:09:58
● 2015-10-11 04:08:10
○ 2016-01-31 21:43:36
○ 2026-04-06 03:52:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
nl	ns3.dns.nl, ns1.dns.nl, ns4.dns.nl	-
securityprofessionals.nl	ns1.dds.nl, ns2.dds.eu, ns3.dds.amsterdam	1 record

✅ Authoritative Response

Server:141.255.180.130

NS records: ns1.dds.nl, ns2.dds.eu, ns3.dds.amsterdam

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for securityprofessionals.nl (unsigned zone)

⏱️ Timing

Total: 578ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`217.26.127.243`
NS	3	`ns1.dds.nl, ns2.dds.eu...`
MX	5	`mx1.mx-relay.com (pri: 10), securityprofessionals-nl.mail.protection...`
TXT	3	`MS=ms71202017, v=spf1 a:mail.securityprofessionals.nl i...`
SOA	1	`ns1.dds.nl postmaster.securityprofession`

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns1.dds.nl)

Analysis

Hierarchy

securityprofessionals.nl is a parent of mail.securityprofessionals.nl.

IP Addresses

securityprofessionals.nl points to a single IP address: 217.26.127.243.

Other host names such as mail.laromana.nl, isolatiehal.com, webdesignboekel.nl, torreviejaonline.nl and mail.albatera.nl share IP numbers with securityprofessionals.nl.

Name Servers

securityprofessionals.nl is delegated to three name servers: ns3.dds.amsterdam, ns2.dds.eu and ns1.dds.nl.

At least part of the name servers for securityprofessionals.nl are shared with other domains, for instance meged.nl, vanons.nl, phides.nl, warpair.com and vandieten.eu.

These name servers are commonly used alongside the name servers ns2.dds.nl.

Host names with a single IP:

ns3.dds.amsterdam points to: 85.158.250.40

ns2.dds.eu points to: 136.144.233.156

ns1.dds.nl points to: 141.255.180.130

Mail Servers

securityprofessionals.nl is handled by five mail servers: mx1.mx-relay.com, mx2.mx-relay.com, mx3.mx-relay.com, mx4.mx-relay.com and securityprofessionals-nl.mail.protection.outlook.com.

securityprofessionals.nl shares at least some mail servers with other domains, for example floruit.nl, capital-d.nl, annunci69.it, kingmetaal.nl and tesamen.org.