ctb.nl - robtex.com
ctb.nl
nl
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns1.dns.nl ⭐ | ||||||
| NS | ns3.dns.nl | ||||||
| NS | ns4.dns.nl | ||||||
| TXT | nl zone update: 2026-04-20 17:00:02 +0000 (EPOCH 1776704402) | ||||||
| SOA | ns1.dns.nldns@sidn.nl 2026-04-20 #34 | ||||||
Subdomains
mail.ctb.nl |
Same first word
Similar names
DNS History
12 records (5 active, 7 former)
●NSns1.yourdomainprovider.net2026-04-14 → 2026-04-20 · 3 obs
● 2026-04-14 00:50:28
● 2026-04-20 17:35:46
●NSns2.yourdomainprovider.net2026-04-14 → 2026-04-20 · 3 obs
● 2026-04-14 00:50:28
● 2026-04-20 17:35:46
●NSns3.yourdomainprovider.net2026-04-14 → 2026-04-20 · 3 obs
● 2026-04-14 00:50:28
● 2026-04-20 17:35:46
○NSnsauth1.bit.nl2015-04-27 → 2016-10-11 · 4 obs
● 2016-10-11 16:24:50
○ 2026-04-14 00:50:28
○ 2026-04-20 17:35:46
○NSnsauth2.bit.nl2015-04-27 → 2016-10-11 · 4 obs
● 2016-10-11 16:24:50
○ 2026-04-14 00:50:28
○ 2026-04-20 17:35:46
○NSnsauth3.bit.org2015-04-27 → 2016-10-11 · 4 obs
● 2016-10-11 16:24:50
○ 2026-04-14 00:50:28
○ 2026-04-20 17:35:46
○MXcluster8.eu.messagelabs.com2015-04-27 → 2016-10-11 · 4 obs
● 2016-10-11 16:24:50
○ 2026-04-14 00:50:28
○ 2026-04-20 17:35:46
○MXcluster8a.eu.messagelabs.com2015-04-27 → 2016-10-11 · 4 obs
● 2016-10-11 16:24:50
○ 2026-04-14 00:50:28
○ 2026-04-20 17:35:46
●MXctb-nl.mail.protection.outlook.com2026-04-14 → 2026-04-20 · 3 obs
● 2026-04-14 00:50:28
● 2026-04-20 17:35:46
○A149.210.134.842015-04-27 → 2016-04-12 · 4 obs
● 2016-04-12 17:34:28
○ 2016-10-03 03:43:40
○ 2026-04-20 17:35:46
○A149.210.192.1682016-10-03 → 2016-10-11 · 5 obs
● 2016-10-03 03:43:40
● 2016-10-11 16:24:50
○ 2026-04-14 00:50:28
○ 2026-04-20 17:35:46
●A198.202.211.12026-04-14 → 2026-04-20 · 3 obs
● 2026-04-14 00:50:28
● 2026-04-20 17:35:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| nl | ns3.dns.nl, ns1.dns.nl, ns4.dns.nl | - |
| ctb.nl | ns1.yourdomainprovider.net, ns2.yourdomainprovider.net, ns3.yourdomainprovider.net | - |
✅ Authoritative Response
Server:46.101.153.24
NS records: ns1.yourdomainprovider.net, ns2.yourdomainprovider.net, ns3.yourdomainprovider.net
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 863ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 198.202.211.1 |
| NS | 3 | ns2.yourdomainprovider.net, ns3.yourdomainprovider.net... |
| MX | 1 | ctb-nl.mail.protection.outlook.com (pri: |
| TXT | 3 | MS=ms33168332, v=spf1 include:25321820.spf08.hubspotema... |
| SOA | 1 | ns1.yourdomainprovider.net hostmaster.ct |
Analysis
Hierarchy
The parent of mail.ctb.nl is ctb.nl.
IP Addresses
ctb.nl points to IP number: 198.202.211.1.
Other host names such as alee.me, urbantech.com, bikesonly.com.au, opportunityatwork.org and cbhd.org share IPs with ctb.nl.
Name Servers
ctb.nl is delegated to three name servers: ns1.yourdomainprovider.net, ns2.yourdomainprovider.net and ns3.yourdomainprovider.net.
ctb.nl at least partially shares name servers with other domains, for instance robduell.com, dikwservices.com, sharingahealthyfuture.us, lasent.nl and 27021970.nl.
these name servers are often used in conjunction with the name servers ns4.yourdomainprovider.net.
Host ns1.yourdomainprovider.net points to 2a00:c6c0:0:150:1::1 and 185.88.143.183; Host ns2.yourdomainprovider.net points to 2a03:b0c0:3:d0::124:5001 and 46.101.153.24; Host ns3.yourdomainprovider.net points to 2604:a880:800:10::9a1:2001 and 104.236.29.251.
Mail Servers
ctb.nl is handled by a single mail server, ctb-nl.mail.protection.outlook.com.
Host name ctb-nl.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca04::6, 2a01:111:f403:ca04::7, 2a01:111:f403:ca04::d, 2a01:111:f403:ca09::c, 52.101.73.4, 52.101.73.15, 52.101.73.19 and 52.101.73.24.