optimallearning.nl - dns.ninja

`optimallearning.nl`

DNSSEC	⚠️ Not signed
A	2a02:2350:5:106:8039:5a67:8a36:fa55^{🇩🇰 ONECOM2a02:2350::/32 One.com A/S}
A	46.30.215.167^{🇩🇰 ONECOM46.30.208.0/21 One.com A/S}
NS	`ns01.one.com` ⭐
		A	2001:67c:28cc::10^{ONECOM-INFRA2001:67c:28cc::/48}
			PTR	`ns01.one.com`
		A	195.206.121.10^{ONECOM-INFRA195.206.121.0/24}
			PTR	`ns01.one.com`
NS	`ns02.one.com`
		A	2001:67c:3c0::10^{🇩🇰 ONECOM2001:67c:3c0::/48}
			PTR	`ns02.one.com`
		A	185.10.11.10^{ONECOM185.10.11.0/24}
			PTR	`ns02.one.com`
MX	`mx1.pub.mailpod11-cph3.one.com` ⭐
		A	104.37.34.230^{🇩🇰 ONECOM104.37.32.0/21 One.com A/S}
			PTR	`mx1.pub.mailpod11-cph3.one.com`
MX	`mx2.pub.mailpod11-cph3.one.com` ⭐
		A	104.37.34.231^{🇩🇰 ONECOM104.37.32.0/21 One.com A/S}
			PTR	`mx2.pub.mailpod11-cph3.one.com`
MX	`mx3.pub.mailpod11-cph3.one.com` ⭐
		A	104.37.34.232^{🇩🇰 ONECOM104.37.32.0/21 One.com A/S}
			PTR	`mx3.pub.mailpod11-cph3.one.com`
MX	`mx4.pub.mailpod11-cph3.one.com` ⭐
		A	104.37.34.233^{🇩🇰 ONECOM104.37.32.0/21 One.com A/S}
			PTR	`mx4.pub.mailpod11-cph3.one.com`
SOA	`ns01.one.com`hostmaster@one.com 2026-06-19 #1

`nl`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns1.dns.nl` ⭐
	NS	`ns3.dns.nl`
	NS	`ns4.dns.nl`
	TXT	`nl zone update: 2026-07-11 15:00:01 +0000 (EPOCH 1783782001)`
	SOA	`ns1.dns.nl`dns@sidn.nl 2026-07-11 #30

Subdomains

mx.optimallearning.nl

Same first word

optimallearning.nl

DNS History

17 records (8 active, 9 former)

●NSns01.one.com2015-08-18 → 2026-07-11 · 2 obs

● 2015-08-18 12:54:08
● 2026-07-11 15:55:52

●NSns02.one.com2015-08-18 → 2026-07-11 · 2 obs

● 2015-08-18 12:54:08
● 2026-07-11 15:55:52

○MXmx1.pub.mailpod1-cph3.one.com2020-02-13 → 2020-02-13 · 4 obs

○ 2017-03-23 14:24:20
● 2020-02-13 20:19:52
○ 2026-02-16 15:07:06
○ 2026-07-11 15:55:52

●MXmx1.pub.mailpod11-cph3.one.com2026-02-16 → 2026-07-11 · 3 obs

○ 2020-02-13 20:19:52
● 2026-02-16 15:07:06
● 2026-07-11 15:55:52

○MXmx2.pub.mailpod1-cph3.one.com2020-02-13 → 2020-02-13 · 4 obs

○ 2017-03-23 14:24:20
● 2020-02-13 20:19:52
○ 2026-02-16 15:07:06
○ 2026-07-11 15:55:52

●MXmx2.pub.mailpod11-cph3.one.com2026-02-16 → 2026-07-11 · 3 obs

○ 2020-02-13 20:19:52
● 2026-02-16 15:07:06
● 2026-07-11 15:55:52

○MXmx3.pub.mailpod1-cph3.one.com2020-02-13 → 2020-02-13 · 4 obs

○ 2017-03-23 14:24:20
● 2020-02-13 20:19:52
○ 2026-02-16 15:07:06
○ 2026-07-11 15:55:52

●MXmx3.pub.mailpod11-cph3.one.com2026-02-16 → 2026-07-11 · 3 obs

○ 2020-02-13 20:19:52
● 2026-02-16 15:07:06
● 2026-07-11 15:55:52

●MXmx4.pub.mailpod11-cph3.one.com2026-02-16 → 2026-07-11 · 3 obs

○ 2020-02-13 20:19:52
● 2026-02-16 15:07:06
● 2026-07-11 15:55:52

○MXmxcluster1.one.com2015-08-18 → 2017-03-23 · 4 obs

● 2015-08-18 12:54:08
● 2017-03-23 14:24:20
○ 2020-02-13 20:19:52
○ 2026-07-11 15:55:52

○MXmxcluster2.one.com2015-08-18 → 2017-03-23 · 4 obs

● 2015-08-18 12:54:08
● 2017-03-23 14:24:20
○ 2020-02-13 20:19:52
○ 2026-07-11 15:55:52

●A2a02:2350:5:106:8039:5a67:8a36:fa552026-02-16 → 2026-07-11 · 3 obs

○ 2020-02-13 20:19:52
● 2026-02-16 15:07:06
● 2026-07-11 15:55:52

○A2a02:2350:5:109:5200:0:395a:678a2020-02-13 → 2020-02-13 · 4 obs

○ 2017-03-23 14:24:20
● 2020-02-13 20:19:52
○ 2026-02-16 15:07:06
○ 2026-07-11 15:55:52

○A46.30.212.1002015-08-18 → 2016-05-02 · 4 obs

● 2015-08-18 12:54:08
● 2016-05-02 03:10:10
○ 2017-03-23 14:24:20
○ 2026-07-11 15:55:52

○A46.30.213.1332017-03-23 → 2017-03-23 · 4 obs

○ 2016-05-02 03:10:10
● 2017-03-23 14:24:20
○ 2020-02-13 20:19:52
○ 2026-07-11 15:55:52

●A46.30.215.1672026-02-16 → 2026-07-11 · 3 obs

○ 2020-02-13 20:19:52
● 2026-02-16 15:07:06
● 2026-07-11 15:55:52

○A77.111.240.722020-02-13 → 2020-02-13 · 4 obs

○ 2017-03-23 14:24:20
● 2020-02-13 20:19:52
○ 2026-02-16 15:07:06
○ 2026-07-11 15:55:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
nl	ns3.dns.nl, ns1.dns.nl, ns4.dns.nl	-
optimallearning.nl	ns02.one.com, ns01.one.com	-

✅ Authoritative Response

Server:185.10.11.10

NS records: ns02.one.com, ns01.one.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 557ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`46.30.215.167`
AAAA	1	`2a02:2350:5:106:8039:5a67:8a36:fa55`
NS	2	`ns01.one.com, ns02.one.com`
MX	4	`mx3.pub.mailpod11-cph3.one.com (pri: 10), mx1.pub.mailpod11-cph3.one.com (pri: 10)...`
SOA	1	`ns01.one.com hostmaster.one.com`

Analysis

Hierarchy

optimallearning.nl is a parent domain of mx.optimallearning.nl.

IP Addresses

optimallearning.nl directs to two IP numbers, 46.30.215.167 and 2a02:2350:5:106:8039:5a67:8a36:fa55

Among the host names that share IP numbers with optimallearning.nl are inter-invest.no, www.nf-bueskyttelaug.dk, epost.eliteprodukter.no and two others.

Name Servers

optimallearning.nl is served by two delegated name servers, ns01.one.com and ns02.one.com.

optimallearning.nl has the same name server delegation as a number of other domains, such as exchange-faq.dk, dissars.de, malusrustica.dk and two more.

Each of the two host names carries two IP addresses: ns01.one.com points to 195.206.121.10 and 2001:67c:28cc::10, and ns02.one.com points to 185.10.11.10 and 2001:67c:3c0::10.

Mail Servers

Four mail servers handle email for optimallearning.nl: mx1.pub.mailpod11-cph3.one.com, mx2.pub.mailpod11-cph3.one.com, mx3.pub.mailpod11-cph3.one.com and mx4.pub.mailpod11-cph3.one.com.

optimallearning.nl shares at least some of its mail servers with other domains — for example winn.dk, studiovest.no, ishojbudoklub.dk and two more.

mx1.pub.mailpod11-cph3.one.com resolves to 104.37.34.230. mx2.pub.mailpod11-cph3.one.com resolves to 104.37.34.231. mx3.pub.mailpod11-cph3.one.com resolves to 104.37.34.232. mx4.pub.mailpod11-cph3.one.com resolves to 104.37.34.233. All four hosts carry exactly one IP address.