`crossreference.nl`

DNSSEC	🔒 Signed (DS record present)
A	2a00:1630:10:1016::66^{🇳🇱 i3Dnet2a00:1630::/32 i3D.net B.V. Rotterdam Netherlands}
		PTR	`webserver08.skyhost.systems`
A	5.200.2.66^{🇳🇱 i3Dnet5.200.0.0/19 Interactive 3D B.V. (AS49544)}
NS	`ns1.skyhost.systems` ⭐
		A	2a00:1630:10:1016::71^{🇳🇱 i3Dnet2a00:1630::/32 i3D.net B.V. Rotterdam Netherlands}
			PTR	`ns1.skyhost.systems`
		A	5.200.2.71^{🇳🇱 i3Dnet5.200.0.0/19 Interactive 3D B.V. (AS49544)}
			PTR	`ns1.skyhost.systems`
NS	`ns2.skyhost.systems`
		A	2a00:1630:10:1016::75^{🇳🇱 i3Dnet2a00:1630::/32 i3D.net B.V. Rotterdam Netherlands}
			PTR	`ns2.skyhost.systems`
		A	5.200.2.75^{🇳🇱 i3Dnet5.200.0.0/19 Interactive 3D B.V. (AS49544)}
			PTR	`ns2.skyhost.systems`
NS	`ns3.skyhost.systems`
		A	2a00:ef21:20:684::11^{🇳🇱 Go-Trex2a00:ef20::/29 GO TREX BV}
		A	185.187.110.94^{🇳🇱 Go-Trex185.187.108.0/22 Internet Solution Partner}
			PTR	`fallbackit.skyhost.systems`
MX	`mailhost.crossreference.nl` ⭐
		A	195.240.78.218^{🇳🇱 KPN195.240.0.0/17 B.V.}
			PTR	`195-240-78-218.fixed.kpn.net`
MX	`mailserver.crossreference.nl`⁽⁵⁾
		A	195.240.78.218^{🇳🇱 KPN195.240.0.0/17 B.V.}
			PTR	`195-240-78-218.fixed.kpn.net`
MX	`mail.skyhost.nl`⁽¹⁰⁾
		A	2a00:1630:10:1016::70^{🇳🇱 i3Dnet2a00:1630::/32 i3D.net B.V. Rotterdam Netherlands}
			PTR	`mail04.skyhost.systems`
		A	5.200.2.70^{🇳🇱 i3Dnet5.200.0.0/19 Interactive 3D B.V. (AS49544)}
			PTR	`mail.skyhost.nl`
MX	`fallbackit.skyhost.systems`⁽⁵⁰⁾
		A	2a00:ef21:20:684::11^{🇳🇱 Go-Trex2a00:ef20::/29 GO TREX BV}
		A	185.187.110.94^{🇳🇱 Go-Trex185.187.108.0/22 Internet Solution Partner}
			PTR	`fallbackit.skyhost.systems`
TXT	`v=spf1 a:smtp.xs4all.nl a:ewsoutbound.kpnmail.nl ip4:195.240.78.218 ip6:2a02:...`
SOA	`ns1.skyhost.systems`hostmaster@crossreference.nl 2026-04-21 #1

`nl`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns1.dns.nl` ⭐
	NS	`ns3.dns.nl`
	NS	`ns4.dns.nl`
	TXT	`nl zone update: 2026-04-23 22:00:02 +0000 (EPOCH 1776981602)`
	SOA	`ns1.dns.nl`dns@sidn.nl 2026-04-23 #44

Subdomains

mailhost.crossreference.nl

mailserver.crossreference.nl

Same first word

crossreference.co.kr

crossreference.nl

DNS History

19 records (9 active, 10 former)

○NSns1.skyhost.nl2015-07-26 → 2017-03-26 · 4 obs

● 2015-07-26 13:22:52
● 2017-03-26 12:37:18
○ 2020-03-19 10:34:16
○ 2026-04-23 22:31:06

●NSns1.skyhost.systems2020-03-19 → 2026-04-23 · 3 obs

○ 2017-03-26 12:37:18
● 2020-03-19 10:34:16
● 2026-04-23 22:31:06

○NSns2.skyhost.be2015-07-26 → 2017-03-26 · 4 obs

● 2015-07-26 13:22:52
● 2017-03-26 12:37:18
○ 2020-03-19 10:34:16
○ 2026-04-23 22:31:06

●NSns2.skyhost.systems2020-03-19 → 2026-04-23 · 3 obs

○ 2017-03-26 12:37:18
● 2020-03-19 10:34:16
● 2026-04-23 22:31:06

○NSns3.skyhost.info2015-07-26 → 2017-03-26 · 4 obs

● 2015-07-26 13:22:52
● 2017-03-26 12:37:18
○ 2020-03-19 10:34:16
○ 2026-04-23 22:31:06

●NSns3.skyhost.systems2020-03-19 → 2026-04-23 · 3 obs

○ 2017-03-26 12:37:18
● 2020-03-19 10:34:16
● 2026-04-23 22:31:06

○MXcrossreference.xs4all.nl2015-07-26 → 2017-03-26 · 4 obs

● 2015-07-26 13:22:52
● 2017-03-26 12:37:18
○ 2020-03-19 10:34:16
○ 2026-04-23 22:31:06

○MXfallback02.skyhost.systems2020-03-19 → 2020-03-19 · 4 obs

○ 2017-03-26 12:37:18
● 2020-03-19 10:34:16
○ 2026-02-18 21:50:34
○ 2026-04-23 22:31:06

●MXfallbackit.skyhost.systems2026-02-18 → 2026-04-23 · 3 obs

○ 2020-03-19 10:34:16
● 2026-02-18 21:50:34
● 2026-04-23 22:31:06

●MXmail.skyhost.nl2026-02-18 → 2026-04-23 · 3 obs

○ 2020-03-19 10:34:16
● 2026-02-18 21:50:34
● 2026-04-23 22:31:06

○MXmail03.skyhost.systems2020-03-19 → 2020-03-19 · 4 obs

○ 2017-03-26 12:37:18
● 2020-03-19 10:34:16
○ 2026-02-18 21:50:34
○ 2026-04-23 22:31:06

○MXmailbackup.skyhost.be2015-07-26 → 2017-03-26 · 4 obs

● 2015-07-26 13:22:52
● 2017-03-26 12:37:18
○ 2020-03-19 10:34:16
○ 2026-04-23 22:31:06

●MXmailhost.crossreference.nl2020-03-19 → 2026-04-23 · 3 obs

○ 2017-03-26 12:37:18
● 2020-03-19 10:34:16
● 2026-04-23 22:31:06

●MXmailserver.crossreference.nl2026-02-18 → 2026-04-23 · 3 obs

○ 2020-03-19 10:34:16
● 2026-02-18 21:50:34
● 2026-04-23 22:31:06

○A149.210.175.952020-03-19 → 2020-03-19 · 4 obs

○ 2017-03-26 12:37:18
● 2020-03-19 10:34:16
○ 2026-02-18 21:50:34
○ 2026-04-23 22:31:06

○A188.122.76.1782015-07-26 → 2017-03-26 · 4 obs

● 2015-07-26 13:22:52
● 2017-03-26 12:37:18
○ 2020-03-19 10:34:16
○ 2026-04-23 22:31:06

●A2a00:1630:10:1016::662026-02-18 → 2026-04-23 · 3 obs

○ 2020-03-19 10:34:16
● 2026-02-18 21:50:34
● 2026-04-23 22:31:06

○A2a01:7c8:aab5:265::12020-03-19 → 2020-03-19 · 4 obs

○ 2017-03-26 12:37:18
● 2020-03-19 10:34:16
○ 2026-02-18 21:50:34
○ 2026-04-23 22:31:06

●A5.200.2.662026-02-18 → 2026-04-23 · 3 obs

○ 2020-03-19 10:34:16
● 2026-02-18 21:50:34
● 2026-04-23 22:31:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
nl	ns3.dns.nl, ns1.dns.nl, ns4.dns.nl	-
crossreference.nl	ns2.skyhost.systems, ns3.skyhost.systems, ns1.skyhost.systems	-

✅ Authoritative Response

Server:5.200.2.75

NS records: ns2.skyhost.systems, ns3.skyhost.systems, ns1.skyhost.systems

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 758ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`5.200.2.66`
AAAA	1	`2a00:1630:10:1016::66`
NS	3	`ns1.skyhost.systems, ns2.skyhost.systems...`
MX	4	`mailhost.crossreference.nl (pri: 1), mailserver.crossreference.nl (pri: 5)...`
TXT	1	`v=spf1 a:smtp.xs4all.nl a:ewsoutbound.kp`
SOA	1	`ns1.skyhost.systems hostmaster.crossrefe`

Analysis

Hierarchy

crossreference.nl is a parent of mailhost.crossreference.nl and mailserver.crossreference.nl.

IP Addresses

crossreference.nl points to two IP numbers: 2a00:1630:10:1016::66 and 5.200.2.66.

Other host names such as indoornoordoostpolder.com, inter-tainment.nl, vandastud.com, vandaalen.com and vandaalen.info share IPs with crossreference.nl.

Name Servers

crossreference.nl is delegated to three name servers: ns1.skyhost.systems, ns2.skyhost.systems and ns3.skyhost.systems.

crossreference.nl at least partially shares name servers with other domains, for instance orbitaallassen.eu, skyhost.info, twelpforce.nl, muziekkoepel.info and skyhost.be.

these name servers are often used in conjunction with the name servers ns1.

Host ns1.skyhost.systems points to 2a00:1630:10:1016::71 and 5.200.2.71; Host ns2.skyhost.systems points to 2a00:1630:10:1016::75 and 5.200.2.75; Host ns3.skyhost.systems points to 2a00:ef21:20:684::11 and 185.187.110.94.

Mail Servers

Four mail servers handle crossreference.nl: mailhost.crossreference.nl, mailserver.crossreference.nl, mail.skyhost.nl and fallbackit.skyhost.systems.

crossreference.nl shares at least partially some mail servers with other domains, including polderdijk.systems, skyhost.nl, skyhost.systems, nlsklaaswaal.nl and clearwatertec.com.

Hosts with two IPs:

mail.skyhost.nl points to 2a00:1630:10:1016::70 and 5.200.2.70.

fallbackit.skyhost.systems points to 2a00:ef21:20:684::11 and 185.187.110.94.

Hosts with one IP:

mailhost.crossreference.nl points to 195.240.78.218.

mailserver.crossreference.nl points to 195.240.78.218.

Hosts that map to 195.240.78.218: mailhost.crossreference.nl and mailserver.crossreference.nl.

crossreference.nl - robtex.com