`koolhaas.com`

DNSSEC	🔒 Signed (DS record present)
A	2a01:7c8:e100:1::50a0^{🇳🇱 TRANSIP-AS2a01:7c8::/32 TransIP B.V. Amsterdam IPv6 network}
		PTR	`webhosting.transip.nl`
A	198.49.23.144^{🇺🇸 SQUARESPACE-1198.49.23.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US}
A	198.49.23.145^{🇺🇸 SQUARESPACE-1198.49.23.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US}
A	198.185.159.144^{🇺🇸 SQUARESPACE-1198.185.159.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US}
A	198.185.159.145^{🇺🇸 SQUARESPACE-1198.185.159.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US}
NS	`ns0.transip.net` ⭐ 🔒
		A	2a01:7c8:dddd:195::195^{🇳🇱 TRANSIP-AS2a01:7c8::/32 TransIP B.V. Amsterdam IPv6 network}
			PTR	`ns0.transip.net`
		A	195.135.195.195^{🇮🇹 TRANSIP-AS195.135.195.0/24 TransIP B.V.}
			PTR	`ns0.transip.net`
NS	`ns1.transip.nl` 🔒
		A	2a01:7c8:7000:195::195^{🇳🇱 TRANSIP-AS2a01:7c8::/32 TransIP B.V. Amsterdam IPv6 network}
			PTR	`ns1.transip.nl`
		A	195.8.195.195^{🇳🇱 TRANSIP-AS195.8.195.0/24 TransIP B.V.}
			PTR	`ns1.transip.nl`
NS	`ns2.transip.eu` 🔒
		A	2a01:7c8:f:c1f::195^{🇳🇱 TRANSIP-AS2a01:7c8::/32 TransIP B.V. Amsterdam IPv6 network}
			PTR	`ns2.transip.eu`
		A	37.97.199.195^{🇳🇱 TRANSIP-AS37.97.128.0/17 TransIP BV Amsterdam, The Netherlands}
			PTR	`ns2.transip.eu`
MX	`koolhaas-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca04::6^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db4pr02cu00406.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::7^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db4pr02cu00307.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::7^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am9pr04cu00107.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::c^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-as8pr05cu00304.inbound.protection.outlook.com`
		A	52.101.68.16^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db4pr02cu00400.inbound.protection.outlook.com`
		A	52.101.68.27^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db7pr03cu00503.inbound.protection.outlook.com`
		A	52.101.73.4^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am0pr83cu00404.inbound.protection.outlook.com`
		A	52.101.73.15^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am9pr04cu00107.inbound.protection.outlook.com`
TXT	`v=spf1 ip4:83.160.124.77/32 include:smtp.datafiber.nl include:xs4all.nl ip4:1...`
TXT	`MS=ms53003998`
SOA	`ns0.transip.net`hostmaster@transip.nl 2026-03-05 #3

`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=1771291435

Previously MX for

koolhaas.com

Same first word

koolhaas.info

koolhaas.be

koolhaas.com

koolhaas.net

koolhaas.eu

Similar names

lahasook.com

hakosalo.fi

hakosalo.com

DNS History

20 records (9 active, 11 former)

○NSns.xs4all.nl2015-06-24 → 2017-02-06 · 4 obs

● 2015-06-24 20:48:18
● 2017-02-06 03:26:28
○ 2020-02-15 21:34:30
○ 2026-03-18 12:36:32

●NSns0.transip.net2020-02-15 → 2026-03-18 · 3 obs

○ 2017-02-06 03:26:28
● 2020-02-15 21:34:30
● 2026-03-18 12:36:32

●NSns1.transip.nl2020-02-15 → 2026-03-18 · 3 obs

○ 2017-02-06 03:26:28
● 2020-02-15 21:34:30
● 2026-03-18 12:36:32

●NSns2.transip.eu2020-02-15 → 2026-03-18 · 3 obs

○ 2017-02-06 03:26:28
● 2020-02-15 21:34:30
● 2026-03-18 12:36:32

○NSns2.xs4all.nl2015-06-24 → 2017-02-06 · 4 obs

● 2015-06-24 20:48:18
● 2017-02-06 03:26:28
○ 2020-02-15 21:34:30
○ 2026-03-18 12:36:32

●MXkoolhaas-com.mail.protection.outlook.com2026-03-18 → 2026-03-18 · 3 obs

○ 2026-02-20 01:39:18
● 2026-03-18 12:36:28
● 2026-03-18 12:36:32

○MXkoolhaas.com2015-06-24 → 2016-02-09 · 4 obs

● 2015-06-24 20:48:18
● 2016-02-09 10:36:40
○ 2016-05-07 12:21:00
○ 2026-03-18 12:36:32

○MXmx1.xs4all.nl2015-06-24 → 2016-02-09 · 4 obs

● 2015-06-24 20:48:18
● 2016-02-09 10:36:40
○ 2016-05-07 12:21:00
○ 2026-03-18 12:36:32

○MXmx2.xs4all.nl2015-06-24 → 2016-02-09 · 4 obs

● 2015-06-24 20:48:18
● 2016-02-09 10:36:40
○ 2016-05-07 12:21:00
○ 2026-03-18 12:36:32

○MXmx3.xs4all.nl2015-06-24 → 2016-02-09 · 4 obs

● 2015-06-24 20:48:18
● 2016-02-09 10:36:40
○ 2016-05-07 12:21:00
○ 2026-03-18 12:36:32

○MXmx4.xs4all.nl2015-06-24 → 2016-02-09 · 4 obs

● 2015-06-24 20:48:18
● 2016-02-09 10:36:40
○ 2016-05-07 12:21:00
○ 2026-03-18 12:36:32

○MXsmtp.routit.net2016-05-07 → 2026-02-20 · 5 obs

○ 2016-02-09 10:36:40
● 2016-05-07 12:21:00
● 2026-02-20 01:39:18
○ 2026-03-18 12:36:28
○ 2026-03-18 12:36:32

○MXsmtp1.routit.net2016-05-07 → 2026-02-20 · 5 obs

○ 2016-02-09 10:36:40
● 2016-05-07 12:21:00
● 2026-02-20 01:39:18
○ 2026-03-18 12:36:28
○ 2026-03-18 12:36:32

●A198.185.159.1442026-02-20 → 2026-03-18 · 3 obs

○ 2020-02-15 21:34:30
● 2026-02-20 01:39:18
● 2026-03-18 12:36:32

●A198.185.159.1452026-02-20 → 2026-03-18 · 3 obs

○ 2020-02-15 21:34:30
● 2026-02-20 01:39:18
● 2026-03-18 12:36:32

●A198.49.23.1442026-02-20 → 2026-03-18 · 3 obs

○ 2020-02-15 21:34:30
● 2026-02-20 01:39:18
● 2026-03-18 12:36:32

●A198.49.23.1452026-02-20 → 2026-03-18 · 3 obs

○ 2020-02-15 21:34:30
● 2026-02-20 01:39:18
● 2026-03-18 12:36:32

●A2a01:7c8:e100:1::50a02026-02-20 → 2026-03-18 · 3 obs

○ 2020-02-15 21:34:30
● 2026-02-20 01:39:18
● 2026-03-18 12:36:32

○A46.249.37.1762020-02-15 → 2020-02-15 · 4 obs

○ 2017-02-06 03:26:28
● 2020-02-15 21:34:30
○ 2026-02-20 01:39:18
○ 2026-03-18 12:36:32

○A82.95.225.342015-06-24 → 2017-02-06 · 4 obs

● 2015-06-24 20:48:18
● 2017-02-06 03:26:28
○ 2020-02-15 21:34:30
○ 2026-03-18 12:36:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
koolhaas.com	ns1.transip.nl, ns0.transip.net, ns2.transip.eu	-

✅ Authoritative Response

Server: 37.97.199.195

NS records: ns1.transip.nl, ns0.transip.net, ns2.transip.eu

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1434ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`198.49.23.145, 198.185.159.145...`
AAAA	1	`2a01:7c8:e100:1::50a0`
NS	3	`ns1.transip.nl, ns2.transip.eu...`
MX	1	`koolhaas-com.mail.protection.outlook.com`
TXT	2	`MS=ms53003998, v=spf1 ip4:83.160.124.77/32 include:smtp`
SOA	1	`ns0.transip.net hostmaster.transip.nl`

Analysis

IP Addresses

koolhaas.com points to five IPs: 2a01:7c8:e100:1::50a0, 198.49.23.144, 198.49.23.145, 198.185.159.144 and 198.185.159.145.

other host names include groveforlibraries.com, yourchoicestaffing.com, creatingharmonyinlife.com, desmocenter.se and valleymobilemaintenance.com; they share IP numbers with koolhaas.com.

Name Servers

koolhaas.com is delegated to three name servers ns2.transip.eu, ns0.transip.net and ns1.transip.nl.

koolhaas.com at least partially shares name servers with other domains, for instance garant-uitgevers.be, fietsned.be, real1zetoolz.nl, gigameubel.nl and groenteclub.nl.

Host names with two IP numbers:

ns2.transip.eu points to 2a01:7c8:f:c1f::195 and 37.97.199.195; ns0.transip.net points to 2a01:7c8:dddd:195::195 and 195.135.195.195; ns1.transip.nl points to 2a01:7c8:7000:195::195 and 195.8.195.195.

Mail Servers

koolhaas.com is handled by a single mail server, koolhaas-com.mail.protection.outlook.com.

Hostname koolhaas-com.mail.protection.outlook.com resolves to eight IP numbers: 2a01:111:f403:ca04::6, 2a01:111:f403:ca04::7, 2a01:111:f403:ca09::7, 2a01:111:f403:ca09::c, 52.101.68.16, 52.101.68.27, 52.101.73.4 and 52.101.73.15.

koolhaas.com - robtex.com

koolhaas.com

com

Previously MX for

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`koolhaas.com`

`com`