`cthrough.nl`

DNSSEC	⚠️ Not signed
A	83.217.75.223^{🇧🇪 COMBELL-AS83.217.64.0/19 Combell Network}
		PTR	`linweb216.webhosting.be`
NS	`ns3.combell.net` ⭐
		A	2a00:1c98::53:1^{🇧🇪 COMBELL-AS2a00:1c98::/32 COMBELL Network}
			PTR	`ns3.combell.net`
		A	83.217.73.172^{🇧🇪 COMBELL-AS83.217.64.0/19 Combell Network}
			PTR	`ns3.combell.net`
NS	`ns1.combell.eu` ⚠️ Not in parent delegation
		A	2a00:1c98:50::50^{🇧🇪 COMBELL-AS2a00:1c98:50::/44}
		A	89.44.166.48^{🇧🇪 COMBELL-AS89.44.166.0/23 Combell Network}
			PTR	`89.44.166.48.static.hosted.by.combell-ops.net`
NS	`ns4.combell.net`
		A	2001:1598:0:101::3^{🇧🇪 EASYHOST-COLO-AS2001:1598::/32 Easyhost Network}
			PTR	`ns4.combell.net`
		A	86.39.202.67^{🇧🇪 EASYHOST-COLO-AS86.39.128.0/17 Easyhost Network}
			PTR	`ns4.combell.net`
MX	`mx.mailprotect.be` ⭐
		A	178.208.39.140^{🇧🇪 COMBELL-AS178.208.32.0/19 COMBELL Network}
			PTR	`mx.mailprotect.be`
		A	178.208.39.141^{🇧🇪 COMBELL-AS178.208.32.0/19 COMBELL Network}
			PTR	`mx.mailprotect.be`
		A	178.208.39.142^{🇧🇪 COMBELL-AS178.208.32.0/19 COMBELL Network}
			PTR	`mx.mailprotect.be`
		A	178.208.39.143^{🇧🇪 COMBELL-AS178.208.32.0/19 COMBELL Network}
			PTR	`mx.mailprotect.be`
MX	`mx.backup.mailprotect.be`⁽⁵⁰⁾
		A	178.208.39.140^{🇧🇪 COMBELL-AS178.208.32.0/19 COMBELL Network}
			PTR	`mx.mailprotect.be`
		A	178.208.39.141^{🇧🇪 COMBELL-AS178.208.32.0/19 COMBELL Network}
			PTR	`mx.mailprotect.be`
		A	178.208.39.142^{🇧🇪 COMBELL-AS178.208.32.0/19 COMBELL Network}
			PTR	`mx.mailprotect.be`
		A	178.208.39.143^{🇧🇪 COMBELL-AS178.208.32.0/19 COMBELL Network}
			PTR	`mx.mailprotect.be`
TXT	`v=spf1 include:spf.byte.nl ?all`
SOA	`ns3.combell.net`hostmaster@cthrough.nl serial=1669488863

`nl`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns1.dns.nl` ⭐
	NS	`ns3.dns.nl`
	NS	`ns4.dns.nl`
	TXT	`nl zone update: 2026-03-30 00:00:02 +0000 (EPOCH 1774828802)`
	SOA	`ns1.dns.nl`dns@sidn.nl 2026-03-30 #0

Same first word

cthrough.nl

DNS History

13 records (6 active, 7 former)

●NSns1.combell.eu2026-02-24 → 2026-03-30 · 3 obs

○ 2018-01-08 04:38:08
● 2026-02-24 18:11:38
● 2026-03-30 00:45:28

●NSns3.combell.net2026-02-24 → 2026-03-30 · 3 obs

○ 2018-01-08 04:38:08
● 2026-02-24 18:11:38
● 2026-03-30 00:45:28

●NSns4.combell.net2026-02-24 → 2026-03-30 · 3 obs

○ 2018-01-08 04:38:08
● 2026-02-24 18:11:38
● 2026-03-30 00:45:28

○NSnsa.byte.nl2015-06-25 → 2018-01-08 · 4 obs

● 2015-06-25 17:52:42
● 2018-01-08 04:38:08
○ 2026-02-24 18:11:38
○ 2026-03-30 00:45:28

○NSnsb.byte.nl2015-06-25 → 2018-01-08 · 4 obs

● 2015-06-25 17:52:42
● 2018-01-08 04:38:08
○ 2026-02-24 18:11:38
○ 2026-03-30 00:45:28

○NSnsc.byte.nl2015-06-25 → 2018-01-08 · 4 obs

● 2015-06-25 17:52:42
● 2018-01-08 04:38:08
○ 2026-02-24 18:11:38
○ 2026-03-30 00:45:28

●MXmx.backup.mailprotect.be2026-02-24 → 2026-03-30 · 3 obs

○ 2018-01-08 04:38:08
● 2026-02-24 18:11:38
● 2026-03-30 00:45:28

●MXmx.mailprotect.be2026-02-24 → 2026-03-30 · 3 obs

○ 2018-01-08 04:38:08
● 2026-02-24 18:11:38
● 2026-03-30 00:45:28

○MXsmtp-niet-gebruiken.byte.nl2015-06-25 → 2016-12-24 · 4 obs

● 2015-06-25 17:52:42
● 2016-12-24 10:10:52
○ 2018-01-08 04:38:08
○ 2026-03-30 00:45:28

○MXsmtp1.byte.nl2015-06-25 → 2018-01-08 · 4 obs

● 2015-06-25 17:52:42
● 2018-01-08 04:38:08
○ 2026-02-24 18:11:38
○ 2026-03-30 00:45:28

○MXsmtp2.byte.nl2015-06-25 → 2018-01-08 · 4 obs

● 2015-06-25 17:52:42
● 2018-01-08 04:38:08
○ 2026-02-24 18:11:38
○ 2026-03-30 00:45:28

○A82.94.214.1442015-06-25 → 2018-01-08 · 4 obs

● 2015-06-25 17:52:42
● 2018-01-08 04:38:08
○ 2026-02-24 18:11:38
○ 2026-03-30 00:45:28

●A83.217.75.2232026-02-24 → 2026-03-30 · 3 obs

○ 2018-01-08 04:38:08
● 2026-02-24 18:11:38
● 2026-03-30 00:45:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
nl	ns4.dns.nl, ns3.dns.nl, ns1.dns.nl	-
cthrough.nl	ns3.combell.net, ns4.combell.net	-

✅ Authoritative Response

Server:83.217.73.172

NS records: ns3.combell.net, ns4.combell.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cthrough.nl (unsigned zone)

⏱️ Timing

Total: 658ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`83.217.75.223`
NS	3	`ns1.combell.eu, ns4.combell.net...`
MX	2	`mx.backup.mailprotect.be (pri: 50), mx.mailprotect.be (pri: 10)`
TXT	1	`v=spf1 include:spf.byte.nl ?all`
SOA	1	`ns3.combell.net hostmaster.cthrough.nl`

Analysis

IP Addresses

cthrough.nl points to a single IP number: 83.217.75.223.

Other host names, for instance ejai.com, databoss.nl, test.uhb.nl, *.uhb.nl and www.uhb.nl share IP numbers with cthrough.nl.

Name Servers

The delegation for cthrough.nl is handled by three name servers: ns1.combell.eu, ns3.combell.net and ns4.combell.net.

cthrough.nl at least partially shares name servers with other domains, for instance mail.socosapar.com, lilagrace.be, helio-lights.com, fath.be and degrootenv.be.

these name servers are commonly used with ns3.european-server.com, ns4.european-server.com and ns1.european-server.eu.

Two IP numbers per host:

ns1.combell.eu points to 2a00:1c98:50::50 and 89.44.166.48.

ns3.combell.net points to 2a00:1c98::53:1 and 83.217.73.172.

ns4.combell.net points to 2001:1598:0:101::3 and 86.39.202.67.

Mail Servers

cthrough.nl is handled by two mail servers: mx.mailprotect.be and mx.backup.mailprotect.be.

cthrough.nl uses the same mail server configuration as other domains, such as azaleashop.fr, parkfeesten.info, diamant.nl, maititasol.com and littlechefs.be.

cthrough.nl shares mail servers with other domains at least in part, for instance tpd.be, jonathan.be, sec-dpo.com, mytravelbook.be and brainspot.biz.