dbalumni.net - robtex.com

dbalumni.net

DNSSEC⚠️ Not signed
A2a01:4f8:fff3:1b::2🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
A148.251.219.27🇩🇪 Hetzner148.251.0.0/16 HETZNER-RZ-BLK-ERX2
NShydrogen.ns.hetzner.com ⭐
A2a01:4f8:0:1::add:1098🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
PTRhydrogen.ns.hetzner.com
A213.133.100.98🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1
PTRhydrogen.ns.hetzner.com
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
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
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
SOAhydrogen.ns.hetzner.comdns@hetzner.com 2026-04-29 #0

net

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1784920372

Same first word

dbalumni.org
dbalumni.net

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DNS History

11 records (6 active, 5 former)

201820192020202120222023202420252026NShydrogen.ns.hetzner.comns.second-ns.comns1.your-server.dens3.second-ns.deroot-dns.netcup.netsecond-dns.netcup.netthird-dns.netcup.netMXmail.dbalumni.netA148.251.219.272a01:4f8:fff3:1b::2188.68.53.11
●NShydrogen.ns.hetzner.com2026-07-01 → 2026-07-24 · 3 obs
○ 2018-06-22 12:23:10
● 2026-07-01 16:52:20
● 2026-07-24 19:38:32
●NSns.second-ns.com2026-07-01 → 2026-07-24 · 3 obs
○ 2018-06-22 12:23:10
● 2026-07-01 16:52:20
● 2026-07-24 19:38:32
●NSns1.your-server.de2026-07-01 → 2026-07-24 · 3 obs
○ 2018-06-22 12:23:10
● 2026-07-01 16:52:20
● 2026-07-24 19:38:32
●NSns3.second-ns.de2026-07-01 → 2026-07-24 · 3 obs
○ 2018-06-22 12:23:10
● 2026-07-01 16:52:20
● 2026-07-24 19:38:32
○NSroot-dns.netcup.net2017-01-03 → 2018-06-22 · 4 obs
● 2017-01-03 20:01:08
● 2018-06-22 12:23:10
○ 2026-07-01 16:52:20
○ 2026-07-24 19:38:32
○NSsecond-dns.netcup.net2017-01-03 → 2018-06-22 · 4 obs
● 2017-01-03 20:01:08
● 2018-06-22 12:23:10
○ 2026-07-01 16:52:20
○ 2026-07-24 19:38:32
○NSthird-dns.netcup.net2017-01-03 → 2018-06-22 · 4 obs
● 2017-01-03 20:01:08
● 2018-06-22 12:23:10
○ 2026-07-01 16:52:20
○ 2026-07-24 19:38:32
○MXmail.dbalumni.net2017-01-03 → 2018-06-22 · 4 obs
● 2017-01-03 20:01:08
● 2018-06-22 12:23:10
○ 2026-07-01 16:52:20
○ 2026-07-24 19:38:32
●A148.251.219.272026-07-01 → 2026-07-24 · 3 obs
○ 2018-06-22 12:23:10
● 2026-07-01 16:52:20
● 2026-07-24 19:38:32
○A188.68.53.112017-01-03 → 2018-06-22 · 4 obs
● 2017-01-03 20:01:08
● 2018-06-22 12:23:10
○ 2026-07-01 16:52:20
○ 2026-07-24 19:38:32
●A2a01:4f8:fff3:1b::22026-07-01 → 2026-07-24 · 3 obs
○ 2018-06-22 12:23:10
● 2026-07-01 16:52:20
● 2026-07-24 19:38:32

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
netg.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net, m.gtld-servers.net...-
dbalumni.netns1.your-server.de, ns.second-ns.com, ns3.second-ns.de-

✅ Authoritative Response

Server:213.133.100.102

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for dbalumni.net (unsigned zone)

⏱️ Timing

Total: 459ms | Queries: -

📄 Records

TypeCountSample Data
A1148.251.219.27
AAAA12a01:4f8:fff3:1b::2
NS3ns3.second-ns.de, ns.second-ns.com...
SOA1hydrogen.ns.hetzner.com dns.hetzner.com

Analysis

IP Addresses

dbalumni.net resolves to the IP addresses 148.251.219.27 and 2a01:4f8:fff3:1b::2

Among the host names that share IP numbers with dbalumni.net are www.nasa-mlg.de, adg-alumni.de, bremensia.de and two others.

Name Servers

The domain dbalumni.net is delegated to these four name servers: ns.second-ns.com, ns3.second-ns.de, ns1.your-server.de and hydrogen.ns.hetzner.com.

dbalumni.net has at least partial name server overlap with other domains, such as 2.4.0.5.b.1.c.1.8.f.4.0.1.0.a.2.ip6.arpa, 186.132.142.in-addr.arpa, teneriffaanzeiger.de and two others.

It is common to see these name servers used together with name servers oxygen.ns.hetzner.com and helium.ns.hetzner.de.

ns.second-ns.com, ns3.second-ns.de, ns1.your-server.de and hydrogen.ns.hetzner.com all point to exactly two IP numbers each: ns.second-ns.com → 213.239.204.242 and 2a01:4f8:0:a101::b:1; ns3.second-ns.de → 193.47.99.4 and 2001:67c:192c::add:b3; ns1.your-server.de → 213.133.100.102 and 2a01:4f8:0:1::5ddc:1; hydrogen.ns.hetzner.com → 213.133.100.98 and 2a01:4f8:0:1::add:1098.