ns4.de.opalstack.com - robtex.com

ns4.de.opalstack.com

DNSSEC⚠️ Not signed
A172.104.205.51🇺🇸 AKAMAI-LINODE-AP172.104.205.0/24 Akamai Technologies
PTRwebmail.de.opalstack.com
MXmx1.de.opalstack.com ⭐
A2a01:7e01:e001:856::1🇩🇪 AKAMAI-LINODE-AP2a01:7e01::/32 Akamai Technologies
PTRmx1.de.opalstack.com
A139.162.189.90🇩🇪 AKAMAI-LINODE-AP139.162.160.0/19 Akamai Technologies
PTRmx1.de.opalstack.com
MXmx2.de.opalstack.com ⭐
A178.162.221.165🇩🇪 LEASEWEB-DE-FRA-10178.162.192.0/18
PTRmx2.de.opalstack.com
TXTv=spf1 include:spf.opalstack.com ~all

de.opalstack.com

DNSSEC⚠️ Not signed
A172.104.205.51🇺🇸 AKAMAI-LINODE-AP172.104.205.0/24 Akamai Technologies
MXmx1.de.opalstack.com ⭐
MXmx2.de.opalstack.com ⭐
TXTv=spf1 include:spf.opalstack.com ~all

NS for

callebaut.org
tomgraves.org
progis.hr
bong.international

Same first word

ns4.hu
ns4.fj
ns4.ma.gov.br
ns4.ni
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ns4.to.gov.br
ns4.mycloudnas.com
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ns4.j.scaleforce.net
ns4.no
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ns4.net
ns4.sinaapp.com
ns4.org
ns4.mediatech.by
ns4.alp1.ae.flow.ch
ns4.nc.tr
ns4.nhs.uk
ns4.de
ns4.ddns.net
ns4.siteleaf.net
ns4.uz
ns4.us
ns4.dk
ns4.yandexcloud.net
ns4.myqnapcloud.com
ns4.site
ns4.gov.ps
ns4.fi
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ns4.kasserver.com
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ns4.nz
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ns4.it.com
ns4.jelastic.saveincloud.net
ns4.in
ns4.cloudjiffy.net
ns4.cloudflare.net
ns4.gov.bh
ns4.fastly-edge.com
ns4.net.au
ns4.com
ns4.go.gov.br
ns4.nic.in
ns4.123hjemmeside.dk
ns4.com.br
ns4.fr
ns4.gov.az
ns4.co
ns4.in-berlin.de

Similar names

4ns.de
4ns.co.uk
s4n.co
4ns.nl
sn4.de
4ns.in
s4n.edu.vn
n4s.com
n4s.fr
sn4.ru
s4n.ru
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4ns.cn
4ns.hu
sn4.ch
4ns.net
s4n.net
s4n.org
sn4.fi
4sn.de
s4n.nl
4ns.pl
4ns.org
s4n.de
sn4.com.br
sn4.com
n4s.net
n4s.de
s4n.cc
n4s.cn
4ns.ru
sn4.org
n4s.co.uk
4ns.eu
s4n.com.br
n4s.fi
4sn.com
4sn.nl
sn4.co.uk
n4s.us
n4s.pl
4ns.su

DNS History

5 records (3 active, 2 former)

MXmx1.de.opalstack.commx2.de.opalstack.commx1.us.opalstack.commx2.us.opalstack.comA172.104.205.51
●MXmx1.de.opalstack.com2026-03-16 → 2026-05-09 · 9 obs
○ 2026-03-14 05:10:46
● 2026-03-16 04:52:42
● 2026-03-23 07:29:08
○ 2026-03-24 19:34:40
● 2026-03-31 20:06:50
○ 2026-04-26 22:17:16
○ 2026-05-06 01:52:58
● 2026-05-09 17:49:00
● 2026-05-09 17:49:02
○MXmx1.us.opalstack.com2026-02-21 → 2026-05-06 · 10 obs
● 2026-02-21 17:41:50
● 2026-03-14 05:10:46
○ 2026-03-16 04:52:42
○ 2026-03-23 07:29:08
● 2026-03-24 19:34:40
○ 2026-03-31 20:06:50
● 2026-04-26 22:17:16
● 2026-05-06 01:52:58
○ 2026-05-09 17:49:00
○ 2026-05-09 17:49:02
●MXmx2.de.opalstack.com2026-03-16 → 2026-05-09 · 9 obs
○ 2026-03-14 05:10:46
● 2026-03-16 04:52:42
● 2026-03-23 07:29:08
○ 2026-03-24 19:34:40
● 2026-03-31 20:06:50
○ 2026-04-26 22:17:16
○ 2026-05-06 01:52:58
● 2026-05-09 17:49:00
● 2026-05-09 17:49:02
○MXmx2.us.opalstack.com2026-02-21 → 2026-05-06 · 10 obs
● 2026-02-21 17:41:50
● 2026-03-14 05:10:46
○ 2026-03-16 04:52:42
○ 2026-03-23 07:29:08
● 2026-03-24 19:34:40
○ 2026-03-31 20:06:50
● 2026-04-26 22:17:16
● 2026-05-06 01:52:58
○ 2026-05-09 17:49:00
○ 2026-05-09 17:49:02
●A172.104.205.512026-02-21 → 2026-05-09 · 2 obs
● 2026-02-21 17:41:50
● 2026-05-09 17:49:02

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comg.gtld-servers.net, c.gtld-servers.net, k.gtld-servers.net, b.gtld-servers.net...-
opalstack.comns1.us.opalstack.com, ns2.us.opalstack.com, ns3.us.opalstack.com, ns1.de.opalstack.com4 records

✅ Authoritative Response

Server:139.162.174.250

NS records: ns1.us.opalstack.com, ns2.us.opalstack.com, ns3.us.opalstack.com, ns1.de.opalstack.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for opalstack.com (unsigned zone)

⏱️ Timing

Total: 384ms | Queries: -

📄 Records

TypeCountSample Data
A1172.104.205.51
MX2mx1.us.opalstack.com (pri: 10), mx2.us.opalstack.com (pri: 10)
TXT1v=spf1 include:spf.opalstack.com ~all

📌 Glue Records Collected

Total: 4

In-bailiwick: 4 (ns1.us.opalstack.com, ns2.us.opalstack.com, ns3.us.opalstack.com...)

Analysis

Name Server Role

ns4.de.opalstack.com serves as a name server for callebaut.org, tomgraves.org, progis.hr and bong.international.

Together with ns4.de.opalstack.com, ns1.de.opalstack.com, ns2.de.opalstack.com and ns3.de.opalstack.com are commonly used as name servers.

IP Addresses

ns4.de.opalstack.com points to a single IP: 172.104.205.51.

Other host names such as de.opalstack.com and webmail.de.opalstack.com share IP numbers with ns4.de.opalstack.com.

Mail Servers

ns4.de.opalstack.com is handled by two mail servers: mx1.de.opalstack.com and mx2.de.opalstack.com.

ns4.de.opalstack.com has the same mail server setup as other domains, including girolamoaloe.com, docs.vecturagames.com, www.musicircle.net, mariaacaso.es and entstudios.com.

ns4.de.opalstack.com shares some mail servers with other domains at least partially, for example alifi.com, bucketlist.net, hospitalrun.io and humanleg.org.uk.

These mail servers are often used together with mx1.us.opalstack.com and mx2.us.opalstack.com.

Host names with two IP numbers:

The host name mx1.de.opalstack.com points to 2a01:7e01:e001:856::1 and 139.162.189.90.

Host names with one IP number:

The host name mx2.de.opalstack.com points to 178.162.221.165.