ctkholland.com - robtex.com

ctkholland.com

DNSSEC⚠️ Not signed
NSns1.yourdomainprovider.net ⭐
A2a00:c6c0:0:150:1::1🇳🇱 Greenhost2a00:c6c0::/48
PTRns1.yourdomainprovider.net
A185.88.143.183🇳🇱 Greenhost185.88.143.0/24
PTRns1.yourdomainprovider.net
NSns2.yourdomainprovider.net
A2a03:b0c0:3:d0::124:5001🇩🇪 DIGITALOCEAN2a03:b0c0:3::/48 DigitalOcean
PTRns2.yourdomainprovider.net
A46.101.153.24🇩🇪 DIGITALOCEAN46.101.128.0/17 DigitalOcean
PTRns2.yourdomainprovider.net
NSns3.yourdomainprovider.net
A2604:a880:800:10::9a1:2001🇺🇸 DIGITALOCEAN2604:a880:800::/48 DigitalOcean
PTRns3.yourdomainprovider.net
A104.236.29.251🇺🇸 DIGITALOCEAN104.236.0.0/18 DigitalOcean
PTRns3.yourdomainprovider.net
MXctkholland-com.mail.protection.outlook.com ⭐
A2a01:111:f403:ca04::7🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-db4pr02cu00307.inbound.protection.outlook.com
A2a01:111:f403:ca04::f🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-db7pr03cu00507.inbound.protection.outlook.com
A2a01:111:f403:ca09::4🇳🇱 Microsoft2a01:111:f000::/36
PTRmail-am0pr04cu00504.inbound.protection.outlook.com
A2a01:111:f403:ca09::e🇳🇱 Microsoft2a01:111:f000::/36
PTRmail-am7pr05cu00206.inbound.protection.outlook.com
A52.101.68.5🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-du2pr03cu00105.inbound.protection.outlook.com
A52.101.68.8🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-du0pr03cu00100.inbound.protection.outlook.com
A52.101.68.15🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-db6pr03cu00107.inbound.protection.outlook.com
A52.101.68.39🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-db7pr03cu00607.inbound.protection.outlook.com
TXTv=spf1 include:spf.protection.outlook.com -all
SOAns1.yourdomainprovider.nethostmaster@ctkholland.com 2025-10-08 #1

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1777390306

Same first word

ctkholland.com

DNS History

13 records (4 active, 9 former)

2008201020122014201620182020202220242026NSns1.yourdomainprovider.netns2.yourdomainprovider.netns3.yourdomainprovider.netns1.reliahost.nlns2.reliahost.nlnsauth1.reliahost.nlnsauth2.reliahost.nlnsauth3.reliahost.nlMXctkholland-com.mail.protection.outlook.commail.ctkholland.commxbackup.zcc.nl.ctkholland.comA109.71.52.214213.154.225.133
○NSns1.reliahost.nl2017-06-23 → 2017-06-23 · 4 obs
○ 2016-06-22 20:24:26
● 2017-06-23 13:55:54
○ 2026-04-08 10:07:52
○ 2026-04-28 15:55:44
●NSns1.yourdomainprovider.net2026-04-08 → 2026-04-28 · 3 obs
○ 2017-06-23 13:55:54
● 2026-04-08 10:07:52
● 2026-04-28 15:55:44
○NSns2.reliahost.nl2017-06-23 → 2017-06-23 · 4 obs
○ 2016-06-22 20:24:26
● 2017-06-23 13:55:54
○ 2026-04-08 10:07:52
○ 2026-04-28 15:55:44
●NSns2.yourdomainprovider.net2026-04-08 → 2026-04-28 · 3 obs
○ 2017-06-23 13:55:54
● 2026-04-08 10:07:52
● 2026-04-28 15:55:44
●NSns3.yourdomainprovider.net2026-04-08 → 2026-04-28 · 3 obs
○ 2017-06-23 13:55:54
● 2026-04-08 10:07:52
● 2026-04-28 15:55:44
○NSnsauth1.reliahost.nl2007-11-13 → 2016-06-22 · 4 obs
● 2007-11-13 22:05:26
● 2016-06-22 20:24:26
○ 2017-06-23 13:55:54
○ 2026-04-28 15:55:44
○NSnsauth2.reliahost.nl2007-11-13 → 2016-06-22 · 4 obs
● 2007-11-13 22:05:26
● 2016-06-22 20:24:26
○ 2017-06-23 13:55:54
○ 2026-04-28 15:55:44
○NSnsauth3.reliahost.nl2007-11-13 → 2016-06-22 · 4 obs
● 2007-11-13 22:05:26
● 2016-06-22 20:24:26
○ 2017-06-23 13:55:54
○ 2026-04-28 15:55:44
●MXctkholland-com.mail.protection.outlook.com2016-06-22 → 2026-04-28 · 3 obs
○ 2016-03-04 21:16:06
● 2016-06-22 20:24:26
● 2026-04-28 15:55:44
○MXmail.ctkholland.com2007-11-13 → 2016-03-04 · 4 obs
● 2007-11-13 22:05:26
● 2016-03-04 21:16:06
○ 2016-06-22 20:24:26
○ 2026-04-28 15:55:44
○MXmxbackup.zcc.nl.ctkholland.com2015-08-07 → 2016-03-04 · 5 obs
○ 2007-11-13 22:05:26
● 2015-08-07 03:42:12
● 2016-03-04 21:16:06
○ 2016-06-22 20:24:26
○ 2026-04-28 15:55:44
○A109.71.52.2142017-06-23 → 2017-06-23 · 4 obs
○ 2016-06-22 20:24:26
● 2017-06-23 13:55:54
○ 2026-04-08 10:07:52
○ 2026-04-28 15:55:44
○A213.154.225.1332007-11-13 → 2016-06-22 · 4 obs
● 2007-11-13 22:05:26
● 2016-06-22 20:24:26
○ 2017-06-23 13:55:54
○ 2026-04-28 15:55:44

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
ctkholland.comns1.yourdomainprovider.net, ns2.yourdomainprovider.net, ns3.yourdomainprovider.net-

✅ Authoritative Response

Server:185.88.143.183

NS records: ns1.yourdomainprovider.net, ns2.yourdomainprovider.net, ns3.yourdomainprovider.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ctkholland.com (unsigned zone)

⏱️ Timing

Total: 718ms | Queries: -

📄 Records

TypeCountSample Data
NS3ns1.yourdomainprovider.net, ns2.yourdomainprovider.net...
MX1ctkholland-com.mail.protection.outlook.c
TXT1v=spf1 include:spf.protection.outlook.co
SOA1ns1.yourdomainprovider.net hostmaster.ct

Analysis

Name Servers

ctkholland.com is delegated to three name servers: ns1.yourdomainprovider.net, ns2.yourdomainprovider.net and ns3.yourdomainprovider.net.

ctkholland.com at least partially shares name servers with other domains, for example afterthewall.com, ddvw.nl, abkavipuot.nl, mainfreight.ro and jazztrio.nl.

these name servers commonly pair with ns4.yourdomainprovider.net, ns1.networking4all.com, a.ns.xillion.nl and c.ns.xillion.nl.

Host names with two IP numbers:

ns1.yourdomainprovider.net points to 2a00:c6c0:0:150:1::1 and 185.88.143.183

ns2.yourdomainprovider.net points to 2a03:b0c0:3:d0::124:5001 and 46.101.153.24

ns3.yourdomainprovider.net points to 2604:a880:800:10::9a1:2001 and 104.236.29.251

Mail Servers

The ctkholland-com.mail.protection.outlook.com mail server handles ctkholland.com.

ctkholland-com.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca04::7, 2a01:111:f403:ca04::f, 2a01:111:f403:ca09::4, 2a01:111:f403:ca09::e, 52.101.68.5, 52.101.68.8, 52.101.68.15 and 52.101.68.39.