classdev.nl - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`classdev.nl`

DNSSEC	⚠️ Not signed
A	2a00:f10:13f:0:1c00:63ff:fe00:173^{🇳🇱 CLDIN-NL2a00:f10::/29}
		PTR	`www70.totaalholding.nl`
A	185.94.230.134^{🇳🇱 CLDIN-NL185.94.230.0/23}
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.classdev.nl` ⭐
		A	2a00:f10:13f:0:1c00:63ff:fe00:173^{🇳🇱 CLDIN-NL2a00:f10::/29}
			PTR	`www70.totaalholding.nl`
		A	185.94.230.134^{🇳🇱 CLDIN-NL185.94.230.0/23}
			PTR	`www70.totaalholding.nl`
TXT	`v=spf1 a mx ip4:185.94.230.134 include:totaalholding.nl include:spf.totaalhol...`
SOA	`sandra.neostrada.nl`hostmaster@neostrada.nl 2023-11-30 #4

`nl`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns1.dns.nl` ⭐
	NS	`ns3.dns.nl`
	NS	`ns4.dns.nl`
	TXT	`nl zone update: 2026-09-26 01:30:01 +0000 (EPOCH 1790386201)`
	SOA	`ns1.dns.nl`dns@sidn.nl 2026-09-26 #3

Subdomains

mail.classdev.nl

Same first word

classdev.nl

classdev.net

classdev.courses

Similar names

Previous names

Next names

DNS History

9 records (6 active, 3 former)

●NSchristina.neostrada.nl2015-08-12 → 2026-09-26 · 2 obs

● 2015-08-12 15:38:20
● 2026-09-26 02:33:54

●NSlisa.neostrada.nl2015-08-12 → 2026-09-26 · 2 obs

● 2015-08-12 15:38:20
● 2026-09-26 02:33:54

●NSsandra.neostrada.nl2015-08-12 → 2026-09-26 · 2 obs

● 2015-08-12 15:38:20
● 2026-09-26 02:33:54

●MXmail.classdev.nl2015-12-04 → 2026-09-26 · 2 obs

● 2015-12-04 20:29:52
● 2026-09-26 02:33:54

○A185.56.145.442015-12-04 → 2016-03-21 · 5 obs

○ 2015-08-12 15:38:20
● 2015-12-04 20:29:52
● 2016-03-21 02:12:40
○ 2016-09-23 08:45:04
○ 2026-09-26 02:33:54

○A185.56.145.792016-09-23 → 2017-03-31 · 5 obs

○ 2016-03-21 02:12:40
● 2016-09-23 08:45:04
● 2017-03-31 06:32:52
○ 2020-03-12 13:56:34
○ 2026-09-26 02:33:54

●A185.94.230.1342020-03-12 → 2026-09-26 · 3 obs

○ 2017-03-31 06:32:52
● 2020-03-12 13:56:34
● 2026-09-26 02:33:54

●A2a00:f10:13f:0:1c00:63ff:fe00:1732020-03-12 → 2026-09-26 · 3 obs

○ 2017-03-31 06:32:52
● 2020-03-12 13:56:34
● 2026-09-26 02:33:54

○A31.186.174.1182015-08-12 → 2015-08-12 · 3 obs

● 2015-08-12 15:38:20
○ 2015-12-04 20:29:52
○ 2026-09-26 02:33:54

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:66.228.38.167

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: 536ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`185.94.230.134`
AAAA	1	`2a00:f10:13f:0:1c00:63ff:fe00:173`
NS	3	`lisa.neostrada.nl, christina.neostrada.nl...`
MX	1	`mail.classdev.nl (pri: 10)`
TXT	1	`v=spf1 a mx ip4:185.94.230.134 include:t`
SOA	1	`sandra.neostrada.nl hostmaster.neostrada`

📌 Glue Records Collected

Total: 6

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

Analysis

Hierarchy

classdev.nl is the parent zone for mail.classdev.nl.

IP Addresses

classdev.nl resolves to the IP addresses 185.94.230.134 and 2a00:f10:13f:0:1c00:63ff:fe00:173

mail.jonimar.eu, vmgmail.nl, frederikekruse.nl plus two other host names have IP numbers in common with classdev.nl.

Name Servers

classdev.nl is served by three name servers: christina.neostrada.nl, lisa.neostrada.nl and sandra.neostrada.nl.

classdev.nl partially shares its NS delegation with several other domains, including puurpoporkest.nl, tgirlcontacten.nl, stefanvandiest.com and two others.

These name servers regularly co-occur with the name servers een.dnssrv.nl, twee.dnssrv.nl and drie.dnssrv.nl.

The hostnames christina.neostrada.nl, lisa.neostrada.nl and sandra.neostrada.nl each direct to two IP addresses — christina.neostrada.nl to 172.104.143.74 and 2a01:7e01::f03c:91ff:fee9:95bd, lisa.neostrada.nl to 66.228.38.167 and 2600:3c03::f03c:91ff:fe0a:b97, and sandra.neostrada.nl to 31.25.98.57 and 2a05:1500:702:0:1c00:3eff:fe00:35.

Mail Servers

classdev.nl uses one mail server — mail.classdev.nl.

The host mail.classdev.nl resolves to 185.94.230.134 and 2a00:f10:13f:0:1c00:63ff:fe00:173 — two IP addresses.