katwijk.nl - robtex.com

katwijk.nl

DNSSEC🔒 Signed (DS record present)
A2a03:38a0:61:49::1🇳🇱 LEASEWEB-NL-AMS-012a03:38a0::/32 routed via LeaseWeb NL
PTRkatwijkprod03.cobytes.io
A185.71.61.49🇳🇱 LEASEWEB-NL-AMS-01185.71.60.0/22 routed via LeaseWeb NL
NSns1.cobytes.io ⭐
A2a03:38a0:62:53::1🇳🇱 LEASEWEB-NL-AMS-012a03:38a0::/32 routed via LeaseWeb NL
PTRdnsdist01.cobytes.io
A185.71.62.53🇳🇱 LEASEWEB-NL-AMS-01185.71.60.0/22 routed via LeaseWeb NL
PTRdnsdist01.cobytes.io
NSns2.cobytes.com
A2a01:4f8:c012:7d6b::1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
PTRdnsdist02.cobytes.io
A5.75.236.16🇩🇪 Hetzner5.75.128.0/17 HETZNER-DC
PTRdnsdist02.cobytes.io
NSns3.cobytes.eu
A2a0f:8cc0:0:32:53::1🇳🇱 Serverius-Users-as2a0f:8cc0::/48 Cobytes B.V. route object
PTRdnsdist03.cobytes.io
A193.111.32.53🇳🇱 Serverius-Users-as193.111.32.0/24 Cobytes B.V. route object
PTRdnsdist03.cobytes.io
MXkatwijk-nl.b-v1.mx.microsoft ⭐
A2a01:111:f403:ca04::a🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-du0pr03cu00102.inbound.protection.outlook.com
A2a01:111:f403:ca09::7🇳🇱 Microsoft2a01:111:f000::/36
PTRmail-am9pr04cu00107.inbound.protection.outlook.com
A2a01:111:f403:ca09::9🇳🇱 Microsoft2a01:111:f000::/36
PTRmail-as8pr04cu00801.inbound.protection.outlook.com
A2a01:111:f403:ca09::e🇳🇱 Microsoft2a01:111:f000::/36
PTRmail-am7pr05cu00206.inbound.protection.outlook.com
A52.101.68.16🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-db4pr02cu00400.inbound.protection.outlook.com
A52.101.68.32🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-db3pr0202cu00200.inbound.protection.outlook.com
A52.101.73.8🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-am0pr04cu00500.inbound.protection.outlook.com
A52.101.73.15🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-am9pr04cu00107.inbound.protection.outlook.com
TXTbastion365-domain-validation=971113a284843
TXTv=NTA7516-1;startdate=2019-06;enddate=2029-09;provider=bastionic;ntamx=10 mx....
TXTMS=ms60997211
TXTapple-domain-verification=l93MOnGHW4iRMCVy
TXTjE+0Ae2qTKZ9tFzf/GjIqNeFTXkO2BRmWtYtO6ZdOZ+qIRYlhKqXqDmhj0te5fJM6fzF48Vsw8MTr...
TXTv=spf1 a include:spf.eprov.eu ip4:87.213.102.126 ip4:87.249.113.154 include:s...
SOAns1.cobytes.iohostmaster@cobytes.io 2026-03-17 #2

nl

DNSSEC🔒 Signed (DS record present)
NSns1.dns.nl ⭐
NSns3.dns.nl
NSns4.dns.nl
TXTnl zone update: 2026-03-29 20:30:01 +0000 (EPOCH 1774816201)
SOAns1.dns.nldns@sidn.nl 2026-03-29 #41
rank #264241 globally
rank #3194 in the tld
WOT: SAFE (84/100)
📈 Tranco rank: #527,082

Subdomains

webmail.katwijk.nl
www.katwijk.nl

Same first word

katwijk.net
katwijk.nl
katwijk.info
katwijk.be
katwijk.nu
katwijk.eu
katwijk.org
katwijk.tv
katwijk.de

DNS History

16 records (6 active, 10 former)

20162017201820192020202120222023202420252026NSns1.cobytes.ions2.cobytes.comns3.cobytes.euns01.is.nlns02.is.nlns03.is.nlns1.argewebhosting.euns2.argewebhosting.comns3.argewebhosting.nlMXkatwijk-nl.b-v1.mx.microsoftkatwijk-nl.mail.protection.outlook.commail.katwijk.nlA185.71.61.492a03:38a0:61:49::1185.71.63.1865.200.8.186
○NSns01.is.nl2015-06-25 → 2017-09-04 · 4 obs
● 2015-06-25 21:09:30
● 2017-09-04 07:09:06
○ 2021-09-23 00:14:32
○ 2026-03-29 21:16:38
○NSns02.is.nl2015-06-25 → 2017-09-04 · 4 obs
● 2015-06-25 21:09:30
● 2017-09-04 07:09:06
○ 2021-09-23 00:14:32
○ 2026-03-29 21:16:38
○NSns03.is.nl2015-06-25 → 2017-09-04 · 4 obs
● 2015-06-25 21:09:30
● 2017-09-04 07:09:06
○ 2021-09-23 00:14:32
○ 2026-03-29 21:16:38
○NSns1.argewebhosting.eu2021-09-23 → 2021-09-23 · 4 obs
○ 2017-09-04 07:09:06
● 2021-09-23 00:14:32
○ 2026-02-23 04:18:34
○ 2026-03-29 21:16:38
●NSns1.cobytes.io2026-02-23 → 2026-03-29 · 3 obs
○ 2021-09-23 00:14:32
● 2026-02-23 04:18:34
● 2026-03-29 21:16:38
○NSns2.argewebhosting.com2021-09-23 → 2021-09-23 · 4 obs
○ 2017-09-04 07:09:06
● 2021-09-23 00:14:32
○ 2026-02-23 04:18:34
○ 2026-03-29 21:16:38
●NSns2.cobytes.com2026-02-23 → 2026-03-29 · 3 obs
○ 2021-09-23 00:14:32
● 2026-02-23 04:18:34
● 2026-03-29 21:16:38
○NSns3.argewebhosting.nl2021-09-23 → 2021-09-23 · 4 obs
○ 2017-09-04 07:09:06
● 2021-09-23 00:14:32
○ 2026-02-23 04:18:34
○ 2026-03-29 21:16:38
●NSns3.cobytes.eu2026-02-23 → 2026-03-29 · 3 obs
○ 2021-09-23 00:14:32
● 2026-02-23 04:18:34
● 2026-03-29 21:16:38
●MXkatwijk-nl.b-v1.mx.microsoft2026-02-23 → 2026-03-29 · 3 obs
○ 2021-09-23 00:14:32
● 2026-02-23 04:18:34
● 2026-03-29 21:16:38
○MXkatwijk-nl.mail.protection.outlook.com2021-09-23 → 2021-09-23 · 4 obs
○ 2017-09-04 07:09:06
● 2021-09-23 00:14:32
○ 2026-02-23 04:18:34
○ 2026-03-29 21:16:38
○MXmail.katwijk.nl2015-06-25 → 2017-09-04 · 4 obs
● 2015-06-25 21:09:30
● 2017-09-04 07:09:06
○ 2021-09-23 00:14:32
○ 2026-03-29 21:16:38
●A185.71.61.492021-09-23 → 2026-03-29 · 3 obs
○ 2017-09-04 07:09:06
● 2021-09-23 00:14:32
● 2026-03-29 21:16:38
○A185.71.63.1862017-09-04 → 2017-09-04 · 4 obs
○ 2017-01-19 18:33:24
● 2017-09-04 07:09:06
○ 2021-09-23 00:14:32
○ 2026-03-29 21:16:38
●A2a03:38a0:61:49::12021-09-23 → 2026-03-29 · 3 obs
○ 2017-09-04 07:09:06
● 2021-09-23 00:14:32
● 2026-03-29 21:16:38
○A5.200.8.1862015-06-25 → 2017-01-19 · 4 obs
● 2015-06-25 21:09:30
● 2017-01-19 18:33:24
○ 2017-09-04 07:09:06
○ 2026-03-29 21:16:38

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
nlns3.dns.nl, ns1.dns.nl, ns4.dns.nl-
katwijk.nlns1.cobytes.io, ns2.cobytes.com, ns3.cobytes.eu-

✅ Authoritative Response

Server:185.71.62.53

NS records: ns1.cobytes.io, ns2.cobytes.com, ns3.cobytes.eu

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 797ms | Queries: -

📄 Records

TypeCountSample Data
A1185.71.61.49
AAAA12a03:38a0:61:49::1
NS3ns2.cobytes.com, ns1.cobytes.io...
MX1katwijk-nl.b-v1.mx.microsoft (pri: 10)
TXT6bastion365-domain-validation=971113a2848, apple-domain-verification=l93MOnGHW4iRMC...
SOA1ns1.cobytes.io hostmaster.cobytes.io

Analysis

Hierarchy

katwijk.nl is parent of webmail.katwijk.nl and www.katwijk.nl.

IP Addresses

katwijk.nl points to two IPs: 2a03:38a0:61:49::1 and 185.71.61.49.

Other host names such as www.katwijk.nl, valkenburgzh.nl, katwijkprod03.cobytes.io and www.valkenburgzh.nl share IP numbers with katwijk.nl.

Name Servers

katwijk.nl is delegated to three name servers: ns2.cobytes.com, ns3.cobytes.eu and ns1.cobytes.io.

katwijk.nl at least partially shares name servers with other domains, including secondhandprinter.nl, xxlgifts.de, bussum.nl, lyvion.com and bull-docs.nl.

these name servers are commonly used with ns01.solohosting.nl, ns02.solohosting.nl, dns1.ratiodns.nl, dns2.ratiodns.nl and ns03.solohosting.eu.

Host names with two IP numbers:

ns2.cobytes.com points to: 2a01:4f8:c012:7d6b::1 and 5.75.236.16

ns3.cobytes.eu points to: 2a0f:8cc0:0:32:53::1 and 193.111.32.53

ns1.cobytes.io points to: 2a03:38a0:62:53::1 and 185.71.62.53

Mail Servers

katwijk.nl is handled by a single mail server, katwijk-nl.b-v1.mx.microsoft.

Hostname katwijk-nl.b-v1.mx.microsoft points to eight IP numbers: 2a01:111:f403:ca04::a, 2a01:111:f403:ca09::7, 2a01:111:f403:ca09::9, 2a01:111:f403:ca09::e, 52.101.68.16, 52.101.68.32, 52.101.73.8 and 52.101.73.15.