pruefrex.de - robtex.com

pruefrex.de

DNSSEC⚠️ Not signed
A213.133.104.21🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1
PTRwww21.your-server.de
NSns1.your-server.de ⭐
A2a01:4f8:0:1::5ddc:1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
PTRns1.your-server.de
A213.133.100.102🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1
PTRns1.your-server.de
NSns.second-ns.com
A2a01:4f8:0:a101::b:1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
PTRns.second-ns.com
A213.239.204.242🇩🇪 Hetzner213.239.192.0/18 HETZNER-RZ-NBG-BLK2
PTRns.second-ns.com
NSns3.second-ns.de
A2001:67c:192c::add:b3🇩🇪 NORIS-NETWORK2001:67c:192c::/48
PTRns3.second-ns.de
A193.47.99.4🇩🇪 NORIS-NETWORK193.47.99.0/24
PTRns3.second-ns.de
MXpruefrex-de.mail.protection.outlook.com ⭐
A2a01:111:f403:ca04::9🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-db7pr03cu00601.inbound.protection.outlook.com
A2a01:111:f403:ca04::a🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-du0pr03cu00102.inbound.protection.outlook.com
A2a01:111:f403:ca04::d🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-db6pr03cu00105.inbound.protection.outlook.com
A2a01:111:f403:ca09::1🇳🇱 Microsoft2a01:111:f000::/36
PTRmail-as9pr07cu00301.inbound.protection.outlook.com
A52.101.68.5🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-du2pr03cu00105.inbound.protection.outlook.com
A52.101.68.8🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-du0pr03cu00100.inbound.protection.outlook.com
A52.101.68.39🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-db7pr03cu00607.inbound.protection.outlook.com
A52.101.73.4🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-am0pr83cu00404.inbound.protection.outlook.com
TXTMS=ms53880979
TXTgoogle-site-verification=Ra2Wf1BJkWdSLyBMWOj8SDBxll1-c0CwV8X-0XybeX4
TXTv=spf1 include:spf.protection.outlook.com include:_spf.online.superoffice.com...
SOAns1.your-server.depostmaster@your-server.de 2026-03-17 #0

de

DNSSEC🔒 Signed (DS record present)
NSf.nic.de ⭐
NSa.nic.de
NSl.de.net ⚠️ Not in parent delegation
NSn.de.net ⚠️ Not in parent delegation
NSs.de.net ⚠️ Not in parent delegation
NSz.nic.de
SOAf.nic.dedns-operations@denic.de serial=1785273230

Subdomains

mxw3.pruefrex.de
mx2.pruefrex.de

Same first word

pruefrex.de
pruefrex.com

DNS History

9 records (5 active, 4 former)

20162017201820192020202120222023202420252026NSns.second-ns.comns1.your-server.dens3.second-ns.deMXpruefrex-de.mail.protection.outlook.commx1.pruefrex.demx2.pruefrex.demxw3.pruefrex.depxltew1.soflinx.netA213.133.104.21
●NSns.second-ns.com2015-05-14 → 2026-07-28 · 2 obs
● 2015-05-14 06:30:32
● 2026-07-28 21:40:00
●NSns1.your-server.de2015-05-14 → 2026-07-28 · 2 obs
● 2015-05-14 06:30:32
● 2026-07-28 21:40:00
●NSns3.second-ns.de2026-03-22 → 2026-07-28 · 3 obs
○ 2015-05-14 06:30:32
● 2026-03-22 18:43:52
● 2026-07-28 21:40:00
○MXmx1.pruefrex.de2015-05-14 → 2017-04-02 · 4 obs
● 2015-05-14 06:30:32
● 2017-04-02 17:27:24
○ 2020-02-29 16:01:32
○ 2026-07-28 21:40:00
○MXmx2.pruefrex.de2015-05-14 → 2020-02-29 · 4 obs
● 2015-05-14 06:30:32
● 2020-02-29 16:01:32
○ 2026-02-27 17:34:40
○ 2026-07-28 21:40:00
○MXmxw3.pruefrex.de2020-02-29 → 2020-02-29 · 4 obs
○ 2017-04-02 17:27:24
● 2020-02-29 16:01:32
○ 2026-02-27 17:34:40
○ 2026-07-28 21:40:00
●MXpruefrex-de.mail.protection.outlook.com2026-02-27 → 2026-07-28 · 3 obs
○ 2020-02-29 16:01:32
● 2026-02-27 17:34:40
● 2026-07-28 21:40:00
○MXpxltew1.soflinx.net2020-02-29 → 2020-02-29 · 4 obs
○ 2017-04-02 17:27:24
● 2020-02-29 16:01:32
○ 2026-02-27 17:34:40
○ 2026-07-28 21:40:00
●A213.133.104.212015-05-14 → 2026-07-28 · 2 obs
● 2015-05-14 06:30:32
● 2026-07-28 21:40:00

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dea.nic.de, z.nic.de, f.nic.de-
pruefrex.dens.second-ns.com, ns1.your-server.de, ns3.second-ns.de4 records

✅ Authoritative Response

Server:213.239.204.242

NS records: ns.second-ns.com, ns1.your-server.de, ns3.second-ns.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for pruefrex.de (unsigned zone)

⏱️ Timing

Total: 722ms | Queries: -

📄 Records

TypeCountSample Data
A1213.133.104.21
NS3ns1.your-server.de, ns3.second-ns.de...
MX1pruefrex-de.mail.protection.outlook.com
TXT3MS=ms53880979, google-site-verification=Ra2Wf1BJkWdSLyB...
SOA1ns1.your-server.de postmaster.your-serve

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns3.second-ns.de, ns1.your-server.de, ns3.second-ns.de...)

Analysis

Hierarchy

pruefrex.de serves as the parent of mxw3.pruefrex.de and mx2.pruefrex.de.

IP Addresses

pruefrex.de has exactly one IP address — 213.133.104.21.

mail.ress-gmbh.de, mail.armaturenzentrum.com, mail.mischeva.de plus two other host names have IP numbers in common with pruefrex.de.

Name Servers

pruefrex.de is served by three name servers: ns.second-ns.com, ns3.second-ns.de and ns1.your-server.de.

The name servers of pruefrex.de overlap at least partially with those of other domains — among them saag-ja.at, wikihoster.de, awertravel.sk and two more.

The hostnames ns.second-ns.com, ns3.second-ns.de and ns1.your-server.de each direct to two IP addresses — ns.second-ns.com to 213.239.204.242 and 2a01:4f8:0:a101::b:1, ns3.second-ns.de to 193.47.99.4 and 2001:67c:192c::add:b3, and ns1.your-server.de to 213.133.100.102 and 2a01:4f8:0:1::5ddc:1.

Mail Servers

pruefrex.de uses one mail server — pruefrex-de.mail.protection.outlook.com.

pruefrex-de.mail.protection.outlook.com has 8 IP addresses: 52.101.68.5, 52.101.68.8, 52.101.68.39 plus 5 more.