`oefenstofdatabase.nl`

DNSSEC	⚠️ Not signed
A	92.63.172.162^{🇳🇱 CLDIN-NL92.63.168.0/21 PCextreme IPv4 Route}
		PTR	`cloud.trainerssite.nl`
NS	`sandra.neostrada.nl` ⭐
		A	2a05:1500:702:0:1c00:3eff:fe00:35^{🇳🇱 CLDIN-NL2a05:1500::/29}
		A	31.25.98.57^{🇳🇱 CLDIN-NL31.25.96.0/21 PCextreme B.V.}
NS	`christina.neostrada.nl`
		A	2a01:7e01::f03c:91ff:fee9:95bd^{🇩🇪 AKAMAI-LINODE-AP2a01:7e01::/32 Akamai Technologies}
			PTR	`twee.dnssrv.nl`
		A	172.104.143.74^{🇩🇪 AKAMAI-LINODE-AP172.104.128.0/19 Akamai Technologies}
			PTR	`twee.dnssrv.nl`
NS	`lisa.neostrada.nl`
		A	2600:3c03::f03c:91ff:fe0a:b97^{🇺🇸 AKAMAI-LINODE-AP2600:3c03::/32 Akamai Technologies}
			PTR	`drie.dnssrv.nl`
		A	66.228.38.167^{🇺🇸 AKAMAI-LINODE-AP66.228.32.0/20 Akamai Technologies}
			PTR	`drie.dnssrv.nl`
MX	`mail.oefenstofdatabase.nl` ⭐
		A	92.63.172.162^{🇳🇱 CLDIN-NL92.63.168.0/21 PCextreme IPv4 Route}
			PTR	`cloud.trainerssite.nl`
TXT	`v=spf1 a mx include:spf.totaalholding.nl ip4:92.63.172.162 -all`
SOA	`sandra.neostrada.nl`HostmasterEmail 2021-12-22 #1

`nl`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns1.dns.nl` ⭐
	NS	`ns3.dns.nl`
	NS	`ns4.dns.nl`
	TXT	`nl zone update: 2026-03-28 21:30:01 +0000 (EPOCH 1774733401)`
	SOA	`ns1.dns.nl`dns@sidn.nl 2026-03-28 #43

Subdomains

mail.oefenstofdatabase.nl

Same first word

oefenstofdatabase.nl

DNS History

6 records (5 active, 1 former)

●NSchristina.neostrada.nl2018-05-06 → 2026-03-28 · 2 obs

● 2018-05-06 15:39:08
● 2026-03-28 22:36:14

●NSlisa.neostrada.nl2018-05-06 → 2026-03-28 · 2 obs

● 2018-05-06 15:39:08
● 2026-03-28 22:36:14

●NSsandra.neostrada.nl2018-05-06 → 2026-03-28 · 2 obs

● 2018-05-06 15:39:08
● 2026-03-28 22:36:14

●MXmail.oefenstofdatabase.nl2018-05-06 → 2026-03-28 · 2 obs

● 2018-05-06 15:39:08
● 2026-03-28 22:36:14

○A31.186.175.352018-05-06 → 2018-05-06 · 3 obs

● 2018-05-06 15:39:08
○ 2026-03-25 01:51:46
○ 2026-03-28 22:36:14

●A92.63.172.1622026-03-25 → 2026-03-28 · 3 obs

○ 2018-05-06 15:39:08
● 2026-03-25 01:51:46
● 2026-03-28 22:36:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
nl	ns3.dns.nl, ns4.dns.nl, ns1.dns.nl	-
oefenstofdatabase.nl	lisa.neostrada.nl, sandra.neostrada.nl, christina.neostrada.nl	6 records

✅ Authoritative Response

Server:172.104.143.74

NS records: lisa.neostrada.nl, sandra.neostrada.nl, christina.neostrada.nl

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 847ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`92.63.172.162`
NS	3	`christina.neostrada.nl, lisa.neostrada.nl...`
MX	1	`mail.oefenstofdatabase.nl (pri: 10)`
TXT	1	`v=spf1 a mx include:spf.totaalholding.nl`
SOA	1	`sandra.neostrada.nl HostmasterEmail`

📌 Glue Records Collected

Total: 6

Out-of-bailiwick: 6 (lisa.neostrada.nl, sandra.neostrada.nl, christina.neostrada.nl...)

Analysis

Hierarchy

oefenstofdatabase.nl is the parent of mail.oefenstofdatabase.nl.

IP Addresses

oefenstofdatabase.nl resolves to a single IP: 92.63.172.162.

Other host names, for instance trainersmagazine.nl, trainerssite.nl, trainersmagazine.be, trainerssite.be and mail.oefenstofdatabase.nl share IP numbers with oefenstofdatabase.nl.

Name Servers

oefenstofdatabase.nl delegates to three name servers: christina.neostrada.nl, lisa.neostrada.nl and sandra.neostrada.nl.

oefenstofdatabase.nl shares some name servers with other domains, for example sher.nl, sportgemeenten.nl, esvn.nl, rvkn.nl and sdbjava.nl.

These name servers are often used together with een.dnssrv.nl, twee.dnssrv.nl and drie.dnssrv.nl.

Host names with two IP numbers:

christina.neostrada.nl: 2a01:7e01::f03c:91ff:fee9:95bd and 172.104.143.74

lisa.neostrada.nl: 2600:3c03::f03c:91ff:fe0a:b97 and 66.228.38.167

sandra.neostrada.nl: 2a05:1500:702:0:1c00:3eff:fe00:35 and 31.25.98.57

Mail Servers

oefenstofdatabase.nl is handled by a single mail server, mail.oefenstofdatabase.nl.

Host name mail.oefenstofdatabase.nl points to IP 92.63.172.162.

oefenstofdatabase.nl - robtex.com