`about-training.nl`

DNSSEC	⚠️ Not signed
A	37.97.140.197^{🇳🇱 TRANSIP-AS37.97.128.0/17 TransIP BV Amsterdam, The Netherlands}
		PTR	`srv12433.hostingserver.nl`
NS	`ns1.dn-s.nl` ⭐
		A	2a06:2ec0:1::10^{🇳🇱 AS-ZXCS2a06:2ec0::/32}
			PTR	`ns1.zxcs.nl`
		A	185.104.28.19^{🇳🇱 AS-ZXCS185.104.28.0/24}
			PTR	`ns1.zxcs.nl`
NS	`ns2.dn-s.nl`
		A	2a03:b0c0:3:d0::116:2001^{🇩🇪 DIGITALOCEAN2a03:b0c0:3::/48 DigitalOcean}
			PTR	`ns2.zxcs.nl`
		A	46.101.179.64^{🇩🇪 DIGITALOCEAN46.101.128.0/17 DigitalOcean}
			PTR	`ns2.zxcs.nl`
NS	`ns3.dn-s.nl`
		A	2a03:b0c0:2:d0::57:1001^{🇳🇱 DIGITALOCEAN2a03:b0c0:2::/48 DigitalOcean}
			PTR	`ns3.zxcs.nl`
		A	178.62.208.8^{🇳🇱 DIGITALOCEAN178.62.192.0/18 DigitalOcean}
			PTR	`ns3.zxcs.nl`
NS	`ns4.dn-s.nl`
		A	2a06:2ec0:1:a::d53^{🇳🇱 AS-ZXCS2a06:2ec0::/32}
			PTR	`ns.zxcs.de`
		A	185.220.172.14^{🇩🇪 AS-ZXCS185.220.172.0/24 VIMEXX}
			PTR	`ns.zxcs.de`
MX	`mail.about-training.nl` ⭐
		A	37.97.140.197^{🇳🇱 TRANSIP-AS37.97.128.0/17 TransIP BV Amsterdam, The Netherlands}
			PTR	`srv12433.hostingserver.nl`
TXT	`v=spf1 include:_spf.premiumantispam.nl +a +mx +ip4:185.69.232.60 ~all`
SOA	`ns1.dn-s.nl`hostmaster@about-training.nl 2021-01-01 #0

`nl`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns1.dns.nl` ⭐
	NS	`ns3.dns.nl`
	NS	`ns4.dns.nl`
	TXT	`nl zone update: 2026-04-13 15:00:02 +0000 (EPOCH 1776092402)`
	SOA	`ns1.dns.nl`dns@sidn.nl 2026-04-13 #29

Subdomains

mail.about-training.nl

autodiscover.about-training.nl

Same first word

about-training.nl

DNS History

20 records (6 active, 14 former)

○NSns1.123xs.net2015-07-08 → 2016-06-19 · 4 obs

● 2015-07-08 19:29:14
● 2016-06-19 03:51:14
○ 2017-02-06 07:40:38
○ 2026-04-13 15:46:56

●NSns1.dn-s.nl2026-04-09 → 2026-04-13 · 3 obs

○ 2019-12-21 20:39:38
● 2026-04-09 10:18:18
● 2026-04-13 15:46:56

○NSns1.r2ceurope.com2017-02-06 → 2019-12-21 · 5 obs

○ 2016-06-19 03:51:14
● 2017-02-06 07:40:38
● 2019-12-21 20:39:38
○ 2026-04-09 10:18:18
○ 2026-04-13 15:46:56

○NSns2.123xs.net2015-07-08 → 2016-06-19 · 4 obs

● 2015-07-08 19:29:14
● 2016-06-19 03:51:14
○ 2017-02-06 07:40:38
○ 2026-04-13 15:46:56

●NSns2.dn-s.nl2026-04-09 → 2026-04-13 · 3 obs

○ 2019-12-21 20:39:38
● 2026-04-09 10:18:18
● 2026-04-13 15:46:56

○NSns2.r2ceurope.org2017-02-06 → 2019-12-21 · 5 obs

○ 2016-06-19 03:51:14
● 2017-02-06 07:40:38
● 2019-12-21 20:39:38
○ 2026-04-09 10:18:18
○ 2026-04-13 15:46:56

●NSns3.dn-s.nl2026-04-09 → 2026-04-13 · 3 obs

○ 2019-12-21 20:39:38
● 2026-04-09 10:18:18
● 2026-04-13 15:46:56

○NSns3.r2ceurope.net2017-02-06 → 2019-12-21 · 5 obs

○ 2016-06-19 03:51:14
● 2017-02-06 07:40:38
● 2019-12-21 20:39:38
○ 2026-04-09 10:18:18
○ 2026-04-13 15:46:56

●NSns4.dn-s.nl2026-04-09 → 2026-04-13 · 3 obs

○ 2019-12-21 20:39:38
● 2026-04-09 10:18:18
● 2026-04-13 15:46:56

○MXfallbackmx.spamexperts.eu2017-02-06 → 2019-12-21 · 5 obs

○ 2016-06-19 03:51:14
● 2017-02-06 07:40:38
● 2019-12-21 20:39:38
○ 2026-04-09 10:18:18
○ 2026-04-13 15:46:56

○MXlastmx.spamexperts.net2017-02-06 → 2019-12-21 · 5 obs

○ 2016-06-19 03:51:14
● 2017-02-06 07:40:38
● 2019-12-21 20:39:38
○ 2026-04-09 10:18:18
○ 2026-04-13 15:46:56

●MXmail.about-training.nl2026-04-09 → 2026-04-13 · 3 obs

○ 2019-12-21 20:39:38
● 2026-04-09 10:18:18
● 2026-04-13 15:46:56

○MXmx.spamexperts.com2017-02-06 → 2019-12-21 · 5 obs

○ 2016-06-19 03:51:14
● 2017-02-06 07:40:38
● 2019-12-21 20:39:38
○ 2026-04-09 10:18:18
○ 2026-04-13 15:46:56

○MXmx1.123xs.net2015-07-08 → 2016-06-19 · 4 obs

● 2015-07-08 19:29:14
● 2016-06-19 03:51:14
○ 2017-02-06 07:40:38
○ 2026-04-13 15:46:56

○MXmx2.123xs.net2015-07-08 → 2016-06-19 · 4 obs

● 2015-07-08 19:29:14
● 2016-06-19 03:51:14
○ 2017-02-06 07:40:38
○ 2026-04-13 15:46:56

○MXmx3.123xs.net2015-07-08 → 2016-06-19 · 4 obs

● 2015-07-08 19:29:14
● 2016-06-19 03:51:14
○ 2017-02-06 07:40:38
○ 2026-04-13 15:46:56

○MXmx4.123xs.net2015-07-08 → 2016-06-19 · 4 obs

● 2015-07-08 19:29:14
● 2016-06-19 03:51:14
○ 2017-02-06 07:40:38
○ 2026-04-13 15:46:56

○A185.69.232.602017-02-06 → 2019-12-21 · 5 obs

○ 2016-06-19 03:51:14
● 2017-02-06 07:40:38
● 2019-12-21 20:39:38
○ 2026-04-09 10:18:18
○ 2026-04-13 15:46:56

●A37.97.140.1972026-04-09 → 2026-04-13 · 3 obs

○ 2019-12-21 20:39:38
● 2026-04-09 10:18:18
● 2026-04-13 15:46:56

○A81.4.80.972015-07-08 → 2016-06-19 · 4 obs

● 2015-07-08 19:29:14
● 2016-06-19 03:51:14
○ 2017-02-06 07:40:38
○ 2026-04-13 15:46:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
nl	ns3.dns.nl, ns4.dns.nl, ns1.dns.nl	-
about-training.nl	ns1.dn-s.nl, ns2.dn-s.nl, ns3.dn-s.nl, ns4.dn-s.nl	-

✅ Authoritative Response

Server:46.101.179.64

NS records: ns1.dn-s.nl, ns2.dn-s.nl, ns3.dn-s.nl, ns4.dn-s.nl

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for about-training.nl (unsigned zone)

⏱️ Timing

Total: 720ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`37.97.140.197`
NS	4	`ns1.dn-s.nl, ns4.dn-s.nl...`
MX	1	`mail.about-training.nl (pri: 10)`
TXT	1	`v=spf1 include:_spf.premiumantispam.nl +`
SOA	1	`ns1.dn-s.nl hostmaster.about-training.nl`

Analysis

Hierarchy

about-training.nl is a parent of mail.about-training.nl and autodiscover.about-training.nl.

IP Addresses

about-training.nl points to a single IP address: 37.97.140.197.

Other host names such as bonoo.nl, 4x4sport.nl, audiocorner.nl, vacomair.com and mail.4x4sport.nl share IP numbers with about-training.nl.

Name Servers

about-training.nl is delegated to four name servers: ns1.dn-s.nl, ns2.dn-s.nl, ns3.dn-s.nl and ns4.dn-s.nl.

At least part of the name servers for about-training.nl are shared with other domains, for instance ericktactic.nl, wolfram.nl, online-directories.com, hondengedrag.nl and alldecor.nl.

These name servers are often used together with ns2.dn-s.be, ns3.dn-s.eu and ns4.dn-s.org.

Host names with two IP numbers:

ns1.dn-s.nl points to: 2a06:2ec0:1::10 and 185.104.28.19

ns2.dn-s.nl points to: 2a03:b0c0:3:d0::116:2001 and 46.101.179.64

ns3.dn-s.nl points to: 2a03:b0c0:2:d0::57:1001 and 178.62.208.8

ns4.dn-s.nl points to: 2a06:2ec0:1:a::d53 and 185.220.172.14

Mail Servers

The mail server for about-training.nl is mail.about-training.nl.

Host mail.about-training.nl points to IP 37.97.140.197.

about-training.nl - robtex.com