classdb.de - dns.ninja
classdb.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a01:238:20a:202:1158::🇩🇪 STRATO2a01:238:20a::/48 Strato AG | ||||||
| PTR | w9e.rzone.de | ||||||
| A | 81.169.145.158🇩🇪 STRATO81.169.144.0/22 AG | ||||||
| NS | docks16.rzone.de ⭐ | ||||||
| A | 2001:8d8:fe:53:5747:2a74:d:16🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific | ||||||
| PTR | docks16.rzone.de | ||||||
| A | 217.160.80.143🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific | ||||||
| PTR | docks16.rzone.de | ||||||
| NS | shades15.rzone.de | ||||||
| A | 2607:f1c0:fe:53:185:132:34:142🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US | ||||||
| PTR | shades15.rzone.de | ||||||
| A | 185.132.34.142🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS) | ||||||
| PTR | shades15.rzone.de | ||||||
| MX | smtpin.rzone.de ⭐ | ||||||
| A | 2a01:238:20a:202:50f0::1097🇩🇪 STRATO2a01:238:20a::/48 Strato AG | ||||||
| PTR | smtpin.rzone.de | ||||||
| A | 81.169.145.97🇩🇪 STRATO81.169.144.0/22 AG | ||||||
| PTR | smtpin.rzone.de | ||||||
| SOA | docks16.rzone.dehostmaster@strato-rz.de 2021-12-18 #24 | ||||||
de
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | f.nic.de ⭐ | ||||||
| NS | a.nic.de | ||||||
| NS | l.de.net ⚠️ Not in parent delegation | ||||||
| NS | n.de.net ⚠️ Not in parent delegation | ||||||
| NS | s.de.net ⚠️ Not in parent delegation | ||||||
| NS | z.nic.de | ||||||
| SOA | f.nic.dedns-operations@denic.de serial=1785440995 | ||||||
Subdomains
mail.classdb.de |
Same first word
Similar names
cdslabs.net |
sdclabs.com |
cssdlab.com |
bcsadsl.ddns.net |
bdclass.com |
classbd.com |
scdlabs.com |
csdlabs.com |
dsclabs.com |
dbclass.cn |
dbclass.com |
cdslabs.com |
DNS History
9 records (5 active, 4 former)
●NSdocks16.rzone.de2026-04-04 → 2026-07-30 · 3 obs
● 2026-04-04 10:01:04
● 2026-07-30 20:08:18
○NSns5.nameserverservice.de2015-08-17 → 2017-11-22 · 4 obs
● 2017-11-22 02:53:52
○ 2026-04-04 10:01:04
○ 2026-07-30 20:08:18
○NSns6.nameserverservice.de2015-08-17 → 2017-11-22 · 4 obs
● 2017-11-22 02:53:52
○ 2026-04-04 10:01:04
○ 2026-07-30 20:08:18
●NSshades15.rzone.de2026-04-04 → 2026-07-30 · 3 obs
● 2026-04-04 10:01:04
● 2026-07-30 20:08:18
○MXmail.classdb.de2015-08-17 → 2017-11-22 · 4 obs
● 2017-11-22 02:53:52
○ 2026-04-04 10:01:04
○ 2026-07-30 20:08:18
●MXsmtpin.rzone.de2026-04-04 → 2026-07-30 · 3 obs
● 2026-04-04 10:01:04
● 2026-07-30 20:08:18
●A2a01:238:20a:202:1158::2026-04-04 → 2026-07-30 · 3 obs
● 2026-04-04 10:01:04
● 2026-07-30 20:08:18
●A81.169.145.1582026-04-04 → 2026-07-30 · 3 obs
● 2026-04-04 10:01:04
● 2026-07-30 20:08:18
○A85.25.140.1702015-08-17 → 2017-11-22 · 4 obs
● 2017-11-22 02:53:52
○ 2026-04-04 10:01:04
○ 2026-07-30 20:08:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| classdb.de | shades15.rzone.de, docks16.rzone.de | - |
✅ Authoritative Response
Server:217.160.80.143
NS records: shades15.rzone.de, docks16.rzone.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for classdb.de (unsigned zone)
⏱️ Timing
Total: 897ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.169.145.158 |
| AAAA | 1 | 2a01:238:20a:202:1158:: |
| NS | 2 | shades15.rzone.de, docks16.rzone.de |
| MX | 1 | smtpin.rzone.de (pri: 5) |
| SOA | 1 | docks16.rzone.de hostmaster.strato-rz.de |
Analysis
Hierarchy
classdb.de is a parent domain of mail.classdb.de.
IP Addresses
classdb.de directs to two IP numbers, 81.169.145.158 and 2a01:238:20a:202:1158::
Two other host names, along with cadware.de, ar10.nl and sleepyprof.de, also share IP numbers with classdb.de.
Name Servers
The NS records for classdb.de delegate to docks16.rzone.de and shades15.rzone.de.
classdb.de shares its NS records with other domains, for example aldaphone.de, kreft-geruestbau.de, steelworks.at and two others.
classdb.de shares at least some of its name servers with other domains, including betten-hugger.de, dirkmatussek.de, datennetze-berlin.de and two others.
These name servers are frequently seen alongside shades10.rzone.de, shades11.rzone.de, shades03.rzone.de and 7 other name servers.
docks16.rzone.de resolves to 217.160.80.143 and 2001:8d8:fe:53:5747:2a74:d:16. Likewise, shades15.rzone.de resolves to 185.132.34.142 and 2607:f1c0:fe:53:185:132:34:142 — two IP addresses apiece.
Mail Servers
The sole mail server for classdb.de is smtpin.rzone.de.
Among the domains sharing a mail server setup with classdb.de are mail.i-five.de, pumis.de, ferdinandklempa.de and two others.
smtpin.rzone.de points to two IP addresses: 81.169.145.97 and 2a01:238:20a:202:50f0::1097.