`boekstartpro.nl`

DNSSEC	⚠️ Not signed
A	20.23.2.223^{🇳🇱 Microsoft20.0.0.0/11 MICROSOFT}
NS	`ns1.ivin.nl` ⭐
		A	2a06:fb00:1::1:111^{🇧🇬 CLOUDNSNET2a06:fb00:1::/48 ClouDNS}
			PTR	`pns1.cloudns.net`
		A	185.136.96.111^{🇺🇸 CLOUDNSNET185.136.96.0/24 Cloud DNS Ltd}
			PTR	`pns1.cloudns.net`
NS	`ns2.ivin.nl`
		A	2a06:fb00:1::2:111^{🇧🇬 CLOUDNSNET2a06:fb00:1::/48 ClouDNS}
			PTR	`pns2.cloudns.net`
		A	185.136.97.111^{CLOUDNSNET185.136.97.0/24 Cloud DNS Ltd}
			PTR	`pns2.cloudns.net`
NS	`ns3.ivin.nl`
		A	2a06:fb00:1::3:111^{🇧🇬 CLOUDNSNET2a06:fb00:1::/48 ClouDNS}
			PTR	`pns3.cloudns.net`
		A	185.136.98.111^{🇺🇸 CLOUDNSNET185.136.98.0/24 Cloud DNS Ltd}
			PTR	`pns3.cloudns.net`
NS	`ns4.ivin.nl`
		A	2a06:fb00:1::4:111^{🇧🇬 CLOUDNSNET2a06:fb00:1::/48 ClouDNS}
			PTR	`pns4.cloudns.net`
		A	185.136.99.111^{CLOUDNSNET185.136.99.0/24 Cloud DNS Ltd}
			PTR	`pns4.cloudns.net`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c1d::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`ww-in-f26.1e100.net`
		A	142.251.16.26^{🇺🇸 Google142.251.16.0/24}
			PTR	`bl-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽²⁰⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.26^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽²⁰⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽³⁰⁾
		A	2a00:1450:4009:c0f::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.net`
		A	192.178.223.27^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f27.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽³⁰⁾
		A	2a00:1450:400c:c23::1a^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f26.1e100.net`
		A	172.253.157.27^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f27.1e100.net`
TXT	`v=spf1 a:www.boekstartpro.nl include:_spf.google.com ~all`
TXT	`google-site-verification=QinrWTFhP0YttdMRsOd0ctyKhi58fnDC7tO6FLwXmLg`
SOA	`ns1.ivin.nl`domains@intervisors.net 2026-06-30 #4

`nl`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns1.dns.nl` ⭐
	NS	`ns3.dns.nl`
	NS	`ns4.dns.nl`
	TXT	`nl zone update: 2026-07-19 01:00:01 +0000 (EPOCH 1784422801)`
	SOA	`ns1.dns.nl`dns@sidn.nl 2026-07-19 #2

Subdomains

cdn.boekstartpro.nl

Same first word

boekstartpro.nl

DNS History

13 records (10 active, 3 former)

●NSns1.ivin.nl2015-05-31 → 2026-07-19 · 2 obs

● 2015-05-31 07:38:06
● 2026-07-19 02:05:58

●NSns2.ivin.nl2015-05-31 → 2026-07-19 · 2 obs

● 2015-05-31 07:38:06
● 2026-07-19 02:05:58

●NSns3.ivin.nl2015-05-31 → 2026-07-19 · 2 obs

● 2015-05-31 07:38:06
● 2026-07-19 02:05:58

●NSns4.ivin.nl2015-05-31 → 2026-07-19 · 2 obs

● 2015-05-31 07:38:06
● 2026-07-19 02:05:58

○NSns5.ivin.nl2015-05-31 → 2017-06-12 · 4 obs

● 2015-05-31 07:38:06
● 2017-06-12 21:46:10
○ 2026-03-04 21:43:12
○ 2026-07-19 02:05:58

●MXalt1.aspmx.l.google.com2026-03-04 → 2026-07-19 · 2 obs

● 2026-03-04 21:43:12
● 2026-07-19 02:05:58

●MXalt2.aspmx.l.google.com2026-03-04 → 2026-07-19 · 2 obs

● 2026-03-04 21:43:12
● 2026-07-19 02:05:58

●MXalt3.aspmx.l.google.com2026-03-04 → 2026-07-19 · 2 obs

● 2026-03-04 21:43:12
● 2026-07-19 02:05:58

●MXalt4.aspmx.l.google.com2026-03-04 → 2026-07-19 · 2 obs

● 2026-03-04 21:43:12
● 2026-07-19 02:05:58

●MXaspmx.l.google.com2026-03-04 → 2026-07-19 · 2 obs

● 2026-03-04 21:43:12
● 2026-07-19 02:05:58

●A20.23.2.2232026-03-04 → 2026-07-19 · 3 obs

○ 2017-06-12 21:46:10
● 2026-03-04 21:43:12
● 2026-07-19 02:05:58

○A46.44.147.432015-05-31 → 2015-05-31 · 3 obs

● 2015-05-31 07:38:06
○ 2015-10-22 02:33:08
○ 2026-07-19 02:05:58

○A51.254.155.132015-10-22 → 2017-06-12 · 5 obs

○ 2015-05-31 07:38:06
● 2015-10-22 02:33:08
● 2017-06-12 21:46:10
○ 2026-03-04 21:43:12
○ 2026-07-19 02:05:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
nl	ns4.dns.nl, ns3.dns.nl, ns1.dns.nl	-
boekstartpro.nl	ns1.ivin.nl, ns2.ivin.nl, ns3.ivin.nl, ns4.ivin.nl	8 records

✅ Authoritative Response

Server:185.136.96.111

NS records: ns1.ivin.nl, ns2.ivin.nl, ns3.ivin.nl, ns4.ivin.nl

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for boekstartpro.nl (unsigned zone)

⏱️ Timing

Total: 183ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`20.23.2.223`
NS	4	`ns3.ivin.nl, ns1.ivin.nl...`
MX	5	`alt3.aspmx.l.google.com (pri: 30), aspmx.l.google.com (pri: 10)...`
TXT	2	`v=spf1 a:www.boekstartpro.nl include:_sp, google-site-verification=QinrWTFhP0YttdM`
SOA	1	`ns1.ivin.nl domains.intervisors.net`

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (ns4.ivin.nl, ns3.ivin.nl, ns2.ivin.nl...)

Analysis

Hierarchy

The domain cdn.boekstartpro.nl falls under the parent boekstartpro.nl.

IP Addresses

boekstartpro.nl directs to one IP number, which is 20.23.2.223.

Among the host names that share IP numbers with boekstartpro.nl are www.obgz.nl, bibliotheekzhe.nl, achterhoeksepoort.nl and two others.

Name Servers

The domain boekstartpro.nl is delegated to these four name servers: ns1.ivin.nl, ns2.ivin.nl, ns3.ivin.nl and ns4.ivin.nl.

At least some of boekstartpro.nl's name servers are shared with other domains, for example voorlezen.nl, smart-glass.nl, speeltuinsantpoort.nl and two more.

Four hostnames, each resolving to a pair of IP addresses: ns1.ivin.nl directs to 185.136.96.111 and 2a06:fb00:1::1:111; ns2.ivin.nl directs to 185.136.97.111 and 2a06:fb00:1::2:111; ns3.ivin.nl directs to 185.136.98.111 and 2a06:fb00:1::3:111; ns4.ivin.nl directs to 185.136.99.111 and 2a06:fb00:1::4:111.