opa.nl - robtex.com

opa.nl

DNSSEC⚠️ Not signed
A37.46.140.25🇳🇱 CYSO-AS37.46.136.0/21 Cyso Hosting B.V. Block
PTRweb105.shared.hosting-login.net
NSns1.sqr.nl ⭐
A2a01:518:ffff:4020::53:3🇳🇱 CYSO-AS2a01:518::/32 Cyso Hosting B.V. IPv6 Block
PTRns1.dns.sqr.cyso.net
A109.235.73.236🇳🇱 CYSO-AS109.235.72.0/21 Cyso Hosting B.V. Block
PTRns1.dns.sqr.cyso.net
NSns2.sqr.domains
A2a01:518:ffff:4020::53:4🇳🇱 CYSO-AS2a01:518::/32 Cyso Hosting B.V. IPv6 Block
PTRns2.dns.sqr.cyso.net
A93.94.227.166🇳🇱 CYSO-AS93.94.224.0/21 Cyso Hosting B.V. Block
PTRns2.dns.sqr.cyso.net
NSns3.sqr.cloud
A2a03:6000:1002:1002::54🇳🇱 HIGH5-NL2a03:6000::/29 High5! B.V.
PTRns3.sqr.cloud
A46.23.87.195🇳🇱 HIGH5-NL46.23.80.0/20 High5! B.V.
PTRns3.sqr.cloud
MXopa-nl.mail.protection.outlook.com ⭐
A2a01:111:f403:ca04::5🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-db3pr0202cu00205.inbound.protection.outlook.com
A2a01:111:f403:ca04::6🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-db4pr02cu00406.inbound.protection.outlook.com
A2a01:111:f403:ca04::d🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-db6pr03cu00105.inbound.protection.outlook.com
A2a01:111:f403:ca04::f🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-db7pr03cu00507.inbound.protection.outlook.com
A52.101.68.5🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-du2pr03cu00105.inbound.protection.outlook.com
A52.101.68.16🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-db4pr02cu00400.inbound.protection.outlook.com
A52.101.68.29🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-dbapr03cu00105.inbound.protection.outlook.com
A52.101.73.2🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-as9pr07cu00302.inbound.protection.outlook.com
TXTMS=ms18997092
TXTgoogle-site-verification=oVah5O-weXbqB4xwTiKyBSkG_9lF4AMLvwcuMiGFl7w
TXTv=spf1 include:spf.protection.outlook.com -all
TXTgoogle-site-verification=cKG8NGVsix3Mp5pFhKMgEdX0qepDbGg4TISBX_tD8jM
SOAns1.sqr.nlhostmaster@opa.nl 2026-04-07 #1

nl

DNSSEC🔒 Signed (DS record present)
NSns1.dns.nl ⭐
NSns3.dns.nl
NSns4.dns.nl
TXTnl zone update: 2026-04-23 19:00:01 +0000 (EPOCH 1776970801)
SOAns1.dns.nldns@sidn.nl 2026-04-23 #38
WOT: SAFE (68/100)

Same first word

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opa.ba
opa.pl
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opa.nl
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opa.bm
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opa.co.nz
opa.ru
opa.me
opa.no
opa.pt
opa.fi
opa.ie
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opa.org.my
opa.com.cn

Similar names

poa.city
poa.com.pl
aop.in.ua
aop.es
oap.org.in
aop.hu
apo.info
apo.eu.com
poa.cz
aop.co.il
pao.cz
aop.pl
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poa.com.mx
apo.sc
aop.be
aop.org.pe
apo.ac
aop.vn
oap.ca
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apo.com.hk
aop.se
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oap.in
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pao.at
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pao.go.th
pao.su
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oap.net
aop.sk
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apo.com
pao.to
apo.com.pt
apo.or.at
poa.fr
aop.com
pao.de
pao.ie
pao.la
oap.fi
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oap.cc
poa.ch
aop.world
pao.cc
pao.me
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poa.org.za
apo.nl
pao.cn
apo.sk
pao.es
poa.one
pao.ac
apo.se
oap.org
apo.com.ph
poa.ro
pao.edu.pl
apo.co.nz
aop.org.br
apo.com.cn
apo.cz
aop.dk
pao.org.ph
oap.cl
oap.ch
pao.ca
oap.mx
poa.com.sg
apo.co
apo.it
aop.co.uk
poa.ru
apo.ch
oap.de
apo.org.br

DNS History

14 records (5 active, 9 former)

201020122014201620182020202220242026NSns1.sqr.nlns2.sqr.domainsns3.sqr.clouddns-pri.box.nldns-sec.box.nlns3.velthuizen.nlns4.velthuizen.nlMXopa-nl.mail.protection.outlook.commail-in.box.nlmail.opa.nlA37.46.140.25217.119.1.592a02:29b0::1:5983.96.229.65
○NSdns-pri.box.nl2015-07-23 → 2016-12-23 · 5 obs
○ 2009-01-18 15:53:28
● 2015-07-23 07:37:10
● 2016-12-23 00:23:22
○ 2026-04-22 11:34:30
○ 2026-04-23 19:35:24
○NSdns-sec.box.nl2015-07-23 → 2016-12-23 · 5 obs
○ 2009-01-18 15:53:28
● 2015-07-23 07:37:10
● 2016-12-23 00:23:22
○ 2026-04-22 11:34:30
○ 2026-04-23 19:35:24
●NSns1.sqr.nl2026-04-22 → 2026-04-23 · 3 obs
○ 2016-12-23 00:23:22
● 2026-04-22 11:34:30
● 2026-04-23 19:35:24
●NSns2.sqr.domains2026-04-22 → 2026-04-23 · 3 obs
○ 2016-12-23 00:23:22
● 2026-04-22 11:34:30
● 2026-04-23 19:35:24
●NSns3.sqr.cloud2026-04-22 → 2026-04-23 · 3 obs
○ 2016-12-23 00:23:22
● 2026-04-22 11:34:30
● 2026-04-23 19:35:24
○NSns3.velthuizen.nl2009-01-18 → 2009-01-18 · 3 obs
● 2009-01-18 15:53:28
○ 2015-07-23 07:37:10
○ 2026-04-23 19:35:24
○NSns4.velthuizen.nl2009-01-18 → 2009-01-18 · 3 obs
● 2009-01-18 15:53:28
○ 2015-07-23 07:37:10
○ 2026-04-23 19:35:24
○MXmail-in.box.nl2015-07-23 → 2016-12-23 · 5 obs
○ 2009-01-18 15:53:28
● 2015-07-23 07:37:10
● 2016-12-23 00:23:22
○ 2026-04-22 11:34:30
○ 2026-04-23 19:35:24
○MXmail.opa.nl2009-01-18 → 2009-01-18 · 3 obs
● 2009-01-18 15:53:28
○ 2015-07-23 07:37:10
○ 2026-04-23 19:35:24
●MXopa-nl.mail.protection.outlook.com2026-04-22 → 2026-04-23 · 3 obs
○ 2016-12-23 00:23:22
● 2026-04-22 11:34:30
● 2026-04-23 19:35:24
○A217.119.1.592015-07-23 → 2016-12-23 · 5 obs
○ 2009-01-18 15:53:28
● 2015-07-23 07:37:10
● 2016-12-23 00:23:22
○ 2026-04-22 11:34:30
○ 2026-04-23 19:35:24
○A2a02:29b0::1:592015-07-23 → 2016-12-23 · 5 obs
○ 2009-01-18 15:53:28
● 2015-07-23 07:37:10
● 2016-12-23 00:23:22
○ 2026-04-22 11:34:30
○ 2026-04-23 19:35:24
●A37.46.140.252026-04-22 → 2026-04-23 · 3 obs
○ 2016-12-23 00:23:22
● 2026-04-22 11:34:30
● 2026-04-23 19:35:24
○A83.96.229.652009-01-18 → 2009-01-18 · 3 obs
● 2009-01-18 15:53:28
○ 2015-07-23 07:37:10
○ 2026-04-23 19:35:24

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
nlns1.dns.nl, ns4.dns.nl, ns3.dns.nl-
opa.nlns1.sqr.nl, ns2.sqr.domains, ns3.sqr.cloud-

✅ Authoritative Response

Server:46.23.87.195

NS records: ns1.sqr.nl, ns2.sqr.domains, ns3.sqr.cloud

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for opa.nl (unsigned zone)

⏱️ Timing

Total: 730ms | Queries: -

📄 Records

TypeCountSample Data
A137.46.140.25
NS3ns2.sqr.domains, ns3.sqr.cloud...
MX1opa-nl.mail.protection.outlook.com (pri:
TXT4MS=ms18997092, google-site-verification=oVah5O-weXbqB4x...
SOA1ns1.sqr.nl hostmaster.opa.nl

Analysis

IP Addresses

opa.nl points to a single IP address: 37.46.140.25.

Other host names such as biobetty.com, robberts.nl, afvalscheiding.nl, fysiofysiek.nl and rikmaes.nl share IPs with opa.nl.

Name Servers

opa.nl is delegated to three name servers: ns3.sqr.cloud, ns2.sqr.domains and ns1.sqr.nl.

opa.nl at least partially shares name servers with other domains, for example viviennemelchers.nl, greendatacentre.net, piofa.nl, rocketfrog.nl and conradservice.com.

these name servers commonly pair with ns1.hosting.nl, ns2.hosting.nl, ns3.hosting.nl and unicast-eu.dns.sqr.domains.

Host names with two IP numbers:

ns3.sqr.cloud points to 2a03:6000:1002:1002::54 and 46.23.87.195

ns2.sqr.domains points to 2a01:518:ffff:4020::53:4 and 93.94.227.166

ns1.sqr.nl points to 2a01:518:ffff:4020::53:3 and 109.235.73.236

Mail Servers

The opa-nl.mail.protection.outlook.com mail server handles opa.nl.

opa-nl.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca04::5, 2a01:111:f403:ca04::6, 2a01:111:f403:ca04::d, 2a01:111:f403:ca04::f, 52.101.68.5, 52.101.68.16, 52.101.68.29 and 52.101.73.2.