a4t.nl - robtex.com

a4t.nl

DNSSEC⚠️ Not signed
A2a10:b9c0::24🇳🇱 NAML2a10:b9c0::/32
A185.253.58.24🇳🇱 NAML185.253.58.0/24
NSplaceholder.a4t.nl ⭐
NSns1.on9.nl
A2a10:b9c0::23🇳🇱 NAML2a10:b9c0::/32
A185.253.58.23🇳🇱 NAML185.253.58.0/24
PTRsrv001.on9.nl
NSns2.on9.nl
A2a10:b9c0::24🇳🇱 NAML2a10:b9c0::/32
A185.253.58.24🇳🇱 NAML185.253.58.0/24
PTRsrv002.on9.nl
NSns3.on9.nl
A2a10:b9c0:2:300::70🇳🇱 NAML2a10:b9c0::/32
A185.253.58.70🇳🇱 NAML185.253.58.0/24
TXTv=spf1 a mx -all
TXTv=spf1 +a +mx +a:hosting1.dro1.oxar.net -all
SOAplaceholder.a4t.nladmin@a4t.nl 2024-02-01 #0

nl

DNSSEC🔒 Signed (DS record present)
NSns1.dns.nl ⭐
NSns3.dns.nl
NSns4.dns.nl
TXTnl zone update: 2026-05-12 12:00:01 +0000 (EPOCH 1778587201)
SOAns1.dns.nldns@sidn.nl 2026-05-12 #23

Subdomains

placeholder.a4t.nl
ingress.a4t.nl
mail.a4t.nl

Same first word

a4t.ru
a4t.info
a4t.gr
a4t.cn
a4t.be
a4t.net
a4t.co
a4t.ae
a4t.com.au
a4t.de
a4t.top
a4t.nl
a4t.org
a4t.com
a4t.at
a4t.co.uk

Similar names

4at.eu
4ta.com
at4.fr
at4.ru
ta4.us
t4a.com
at4.net
at4.us
t4a.eu
at4.info
4ta.net
4ta.biz
4at.su
4at.cn
ta4.de
t4a.info
t4a.de
t4a.cn
at4.at
4at.at
4at.org
t4a.it
t4a.ru
t4a.co
4ta.de
at4.co.uk
4at.pp.ua
ta4.com
ta4.ru
t4a.dk
at4.nl
4at.info
4ta.us
at4.ca
at4.com
4ta.org
at4.de
t4a.ca
4at.ru
t4a.org
ta4.eu
4at.com
t4a.com.pe
ta4.co
t4a.fr
4at.de
t4a.co.za
at4.ch
t4a.com.br
ta4.se
t4a.net
ta4.mobi

DNS History

16 records (6 active, 10 former)

20162017201820192020202120222023202420252026NSns1.on9.nlns2.on9.nlns3.on9.nlplaceholder.a4t.nlns1.dan.comns1.hostnet.nlns2.dan.comns2.hostnetbv.comns3.hostnetbv.nlMXmail.a4t.nlmx1.hostnet.nlA185.253.58.242a10:b9c0::242a05:d014:9da:8c10:306e:3e07:a16f:a55252.58.78.1691.184.0.100
○NSns1.dan.com2020-11-16 → 2021-07-12 · 5 obs
○ 2016-06-17 15:55:32
● 2020-11-16 01:53:54
● 2021-07-12 02:29:48
○ 2026-04-17 04:41:50
○ 2026-05-12 12:50:24
○NSns1.hostnet.nl2015-06-21 → 2016-06-17 · 4 obs
● 2015-06-21 02:00:58
● 2016-06-17 15:55:32
○ 2020-11-16 01:53:54
○ 2026-05-12 12:50:24
●NSns1.on9.nl2026-04-17 → 2026-05-12 · 3 obs
○ 2021-07-12 02:29:48
● 2026-04-17 04:41:50
● 2026-05-12 12:50:24
○NSns2.dan.com2020-11-16 → 2021-07-12 · 5 obs
○ 2016-06-17 15:55:32
● 2020-11-16 01:53:54
● 2021-07-12 02:29:48
○ 2026-04-17 04:41:50
○ 2026-05-12 12:50:24
○NSns2.hostnetbv.com2015-06-21 → 2016-06-17 · 4 obs
● 2015-06-21 02:00:58
● 2016-06-17 15:55:32
○ 2020-11-16 01:53:54
○ 2026-05-12 12:50:24
●NSns2.on9.nl2026-04-17 → 2026-05-12 · 3 obs
○ 2021-07-12 02:29:48
● 2026-04-17 04:41:50
● 2026-05-12 12:50:24
○NSns3.hostnetbv.nl2015-06-21 → 2016-06-17 · 4 obs
● 2015-06-21 02:00:58
● 2016-06-17 15:55:32
○ 2020-11-16 01:53:54
○ 2026-05-12 12:50:24
●NSns3.on9.nl2026-04-17 → 2026-05-12 · 3 obs
○ 2021-07-12 02:29:48
● 2026-04-17 04:41:50
● 2026-05-12 12:50:24
●NSplaceholder.a4t.nl2026-04-17 → 2026-05-12 · 3 obs
○ 2021-07-12 02:29:48
● 2026-04-17 04:41:50
● 2026-05-12 12:50:24
○MXmail.a4t.nl2015-06-21 → 2016-06-17 · 4 obs
● 2015-06-21 02:00:58
● 2016-06-17 15:55:32
○ 2026-04-17 04:41:50
○ 2026-05-12 12:50:24
○MXmx1.hostnet.nl2015-06-21 → 2016-06-17 · 4 obs
● 2015-06-21 02:00:58
● 2016-06-17 15:55:32
○ 2026-04-17 04:41:50
○ 2026-05-12 12:50:24
●A185.253.58.242026-04-17 → 2026-05-12 · 3 obs
○ 2021-07-12 02:29:48
● 2026-04-17 04:41:50
● 2026-05-12 12:50:24
○A2a05:d014:9da:8c10:306e:3e07:a16f:a5522020-11-16 → 2021-07-12 · 5 obs
○ 2016-06-17 15:55:32
● 2020-11-16 01:53:54
● 2021-07-12 02:29:48
○ 2026-04-17 04:41:50
○ 2026-05-12 12:50:24
●A2a10:b9c0::242026-04-17 → 2026-05-12 · 3 obs
○ 2021-07-12 02:29:48
● 2026-04-17 04:41:50
● 2026-05-12 12:50:24
○A52.58.78.162020-11-16 → 2021-07-12 · 5 obs
○ 2016-06-17 15:55:32
● 2020-11-16 01:53:54
● 2021-07-12 02:29:48
○ 2026-04-17 04:41:50
○ 2026-05-12 12:50:24
○A91.184.0.1002015-06-21 → 2016-06-17 · 4 obs
● 2015-06-21 02:00:58
● 2016-06-17 15:55:32
○ 2020-11-16 01:53:54
○ 2026-05-12 12:50:24

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
nlns4.dns.nl, ns1.dns.nl, ns3.dns.nl-
a4t.nlns1.on9.nl, ns2.on9.nl, ns3.on9.nl6 records

✅ Authoritative Response

Server:185.253.58.24

NS records: ns1.on9.nl, ns2.on9.nl, ns3.on9.nl

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 589ms | Queries: -

📄 Records

TypeCountSample Data
A1185.253.58.24
AAAA12a10:b9c0::24
NS3ns3.on9.nl, ns2.on9.nl...
TXT2v=spf1 a mx -all, v=spf1 +a +mx +a:hosting1.dro1.oxar.net
SOA1placeholder.a4t.nl admin.a4t.nl

📌 Glue Records Collected

Total: 6

Out-of-bailiwick: 6 (ns1.on9.nl, ns1.on9.nl, ns2.on9.nl...)

Analysis

Hierarchy

The parent of placeholder.a4t.nl, ingress.a4t.nl and mail.a4t.nl is a4t.nl.

IP Addresses

Two IP numbers are pointed to by a4t.nl: 2a10:b9c0::24 and 185.253.58.24.

other host names, for instance srv002.on9.nl, c-ya.nl, ns2.on9.nl and app4talent.nl share IP numbers with a4t.nl.

Name Servers

a4t.nl delegates to four name servers: placeholder.a4t.nl, ns1.on9.nl, ns2.on9.nl and ns3.on9.nl.

a4t.nl at least partially shares name servers with other domains, for instance tur-abdin.nl, aram.email, turabdin.nl, c-ya.nl and on9.nl.

These name servers are commonly used with the following: placeholder.on9.nl, placeholder.ox.network, placeholder.app4talent.nl and placeholder.oxar.nl.

Host names with two IP numbers:

ns1.on9.nl points to 2a10:b9c0::23 and 185.253.58.23; ns2.on9.nl points to 2a10:b9c0::24 and 185.253.58.24; ns3.on9.nl points to 2a10:b9c0:2:300::70 and 185.253.58.70.