`koster-it.nl`

DNSSEC	⚠️ Not signed
NS	`ns1.vdbdiensten.nl` ⭐
		A	2a01:7c8:aabc:5ef:5054:ff:fe48:cb2a^{🇳🇱 TRANSIP-AS2a01:7c8::/32 TransIP B.V. Amsterdam IPv6 network}
		A	37.97.138.162^{🇳🇱 TRANSIP-AS37.97.128.0/17 TransIP BV Amsterdam, The Netherlands}
			PTR	`37-97-138-162.colo.transip.net`
NS	`ns2.vdbdiensten.nl`
		A	2a01:7c8:d008:2c3::1^{🇳🇱 TRANSIP-AS2a01:7c8::/32 TransIP B.V. Amsterdam IPv6 network}
		A	136.144.236.150^{🇳🇱 TRANSIP-AS136.144.128.0/17 TransIP BV Amsterdam, The Netherlands}
			PTR	`136-144-236-150.colo.transip.net`
TXT	`MS=ms17866164`
TXT	`=spf1 include:spf.protection.outlook.com include:_spf.odoo.com ip4:93.119.13....`
SOA	`ns1.vdbdiensten.nl`hostmaster@vdbdiensten.nl 2025-02-06 #4

`nl`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns1.dns.nl` ⭐
	NS	`ns3.dns.nl`
	NS	`ns4.dns.nl`
	TXT	`nl zone update: 2026-05-12 04:00:01 +0000 (EPOCH 1778558401)`
	SOA	`ns1.dns.nl`dns@sidn.nl 2026-05-12 #8

Same first word

koster-it.nl

Similar names

it-sektor.dk

tek-stroi.ru

it-sektor.ru

st-erotik.de

it-rostek.de

ts-erotik.de

DNS History

16 records (2 active, 14 former)

○NSns1.cyso.nl2015-06-27 → 2017-03-14 · 4 obs

● 2015-06-27 06:30:14
● 2017-03-14 19:52:34
○ 2020-01-18 08:54:34
○ 2026-05-12 04:47:40

○NSns1.sqr.nl2020-01-18 → 2020-01-18 · 4 obs

○ 2017-03-14 19:52:34
● 2020-01-18 08:54:34
○ 2026-04-02 02:27:52
○ 2026-05-12 04:47:40

●NSns1.vdbdiensten.nl2026-04-02 → 2026-05-12 · 3 obs

○ 2020-01-18 08:54:34
● 2026-04-02 02:27:52
● 2026-05-12 04:47:40

○NSns2.cyso.eu2015-06-27 → 2017-03-14 · 4 obs

● 2015-06-27 06:30:14
● 2017-03-14 19:52:34
○ 2020-01-18 08:54:34
○ 2026-05-12 04:47:40

○NSns2.sqr.domains2020-01-18 → 2020-01-18 · 4 obs

○ 2017-03-14 19:52:34
● 2020-01-18 08:54:34
○ 2026-04-02 02:27:52
○ 2026-05-12 04:47:40

●NSns2.vdbdiensten.nl2026-04-02 → 2026-05-12 · 3 obs

○ 2020-01-18 08:54:34
● 2026-04-02 02:27:52
● 2026-05-12 04:47:40

○NSns3.cyso.net2015-06-27 → 2017-03-14 · 4 obs

● 2015-06-27 06:30:14
● 2017-03-14 19:52:34
○ 2020-01-18 08:54:34
○ 2026-05-12 04:47:40

○NSns3.sqr.cloud2020-01-18 → 2020-01-18 · 4 obs

○ 2017-03-14 19:52:34
● 2020-01-18 08:54:34
○ 2026-04-02 02:27:52
○ 2026-05-12 04:47:40

○MXfilter.cyso.net2015-06-27 → 2016-01-25 · 4 obs

● 2015-06-27 06:30:14
● 2016-01-25 06:32:52
○ 2016-07-15 19:52:20
○ 2026-05-12 04:47:40

○MXkosterit-nl01e.mail.protection.outlook.com2026-04-02 → 2026-04-02 · 4 obs

○ 2020-01-18 08:54:34
● 2026-04-02 02:27:52
○ 2026-04-28 23:07:50
○ 2026-05-12 04:47:40

○MXmx1.antispam-login.net2016-07-15 → 2020-01-18 · 5 obs

○ 2016-01-25 06:32:52
● 2016-07-15 19:52:20
● 2020-01-18 08:54:34
○ 2026-04-02 02:27:52
○ 2026-05-12 04:47:40

○MXmx1.cyso.net2015-06-27 → 2016-01-25 · 4 obs

● 2015-06-27 06:30:14
● 2016-01-25 06:32:52
○ 2016-07-15 19:52:20
○ 2026-05-12 04:47:40

○MXmx2.antispam-login.net2016-07-15 → 2020-01-18 · 5 obs

○ 2016-01-25 06:32:52
● 2016-07-15 19:52:20
● 2020-01-18 08:54:34
○ 2026-04-02 02:27:52
○ 2026-05-12 04:47:40

○MXmx2.cyso.net2015-06-27 → 2016-01-25 · 4 obs

● 2015-06-27 06:30:14
● 2016-01-25 06:32:52
○ 2016-07-15 19:52:20
○ 2026-05-12 04:47:40

○A109.235.75.982015-06-27 → 2016-07-15 · 4 obs

● 2015-06-27 06:30:14
● 2016-07-15 19:52:20
○ 2017-03-14 19:52:34
○ 2026-05-12 04:47:40

○A31.161.106.1542017-03-14 → 2020-01-18 · 5 obs

○ 2016-07-15 19:52:20
● 2017-03-14 19:52:34
● 2020-01-18 08:54:34
○ 2026-04-02 02:27:52
○ 2026-05-12 04:47:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
nl	ns1.dns.nl, ns3.dns.nl, ns4.dns.nl	-
koster-it.nl	ns1.vdbdiensten.nl, ns2.vdbdiensten.nl	-

✅ Authoritative Response

Server:136.144.236.150

NS records: ns1.vdbdiensten.nl, ns2.vdbdiensten.nl

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for koster-it.nl (unsigned zone)

⏱️ Timing

Total: 1124ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`ns2.vdbdiensten.nl, ns1.vdbdiensten.nl`
SOA	1	`ns1.vdbdiensten.nl hostmaster.vdbdienste`

Analysis

Name Servers

koster-it.nl is delegated to two name servers: ns1.vdbdiensten.nl and ns2.vdbdiensten.nl.

koster-it.nl uses the same name server setup as other domains, for instance move2improve.org, blomvastgoed.nl, computerman.nl, fun4lovers.nl and milux.nl.

koster-it.nl shares name servers with other domains at least partially, for instance wit.nl and voipmobiel.nu.

Host names with two IP numbers:

The host ns1.vdbdiensten.nl points to 2a01:7c8:aabc:5ef:5054:ff:fe48:cb2a and 37.97.138.162.

The host ns2.vdbdiensten.nl points to 2a01:7c8:d008:2c3::1 and 136.144.236.150.

koster-it.nl - robtex.com

koster-it.nl

nl

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Name Servers

`koster-it.nl`

`nl`