schulbau.de - robtex.com
schulbau.de
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=1776282690 | ||||||
Same first word
Similar names
DNS History
6 records (5 active, 1 former)
●MXschulbau-de.mail.protection.outlook.com2026-03-26 → 2026-04-15 · 3 obs
● 2026-03-26 16:01:46
● 2026-04-15 20:20:16
○MXsmtpin.rzone.de2015-06-18 → 2017-04-07 · 4 obs
● 2017-04-07 02:48:48
○ 2026-03-26 16:01:46
○ 2026-04-15 20:20:16
●A2a01:238:20a:202:1154::2015-06-18 → 2026-04-15 · 2 obs
● 2026-04-15 20:20:16
●A81.169.145.1542015-06-18 → 2026-04-15 · 2 obs
● 2026-04-15 20:20:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| schulbau.de | shades05.rzone.de, docks13.rzone.de | - |
✅ Authoritative Response
Server:217.160.80.140
NS records: shades05.rzone.de, docks13.rzone.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for schulbau.de (unsigned zone)
⏱️ Timing
Total: 975ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.169.145.154 |
| AAAA | 1 | 2a01:238:20a:202:1154:: |
| NS | 2 | docks13.rzone.de, shades05.rzone.de |
| MX | 1 | schulbau-de.mail.protection.outlook.com |
| TXT | 1 | v=spf1 include:spf.protection.outlook.co |
| SOA | 1 | docks13.rzone.de hostmaster.strato-rz.de |
Analysis
IP Addresses
schulbau.de resolves to two IPs: 2a01:238:20a:202:1154:: and 81.169.145.154.
other host names for instance klanten.de, krumsdorf.eu, sky-lounge.net, studystream.de and tauben.org share IP numbers with schulbau.de.
Name Servers
schulbau.de is delegated to two name servers: docks13.rzone.de and shades05.rzone.de.
schulbau.de shares the same name server setup as other domains, for example zoeller-ks.de, laufgeist.de, gambron.biz, impro-talking-heads.de and duria-dsc-dormagen.de.
schulbau.de at least partially shares name servers with other domains, for instance quad-lock.de, m17.de, ermke.org, xgraf.de and opel-rekord-e.de.
These name servers are often used together with the name servers docks12.rzone.de, shades14.rzone.de, shades17.rzone.de, shades13.rzone.de, shades15.rzone.de, docks18.rzone.de, docks16.rzone.de, shades20.rzone.de, shades16.rzone.de and docks19.rzone.de.
Host names with two IP numbers:
docks13.rzone.de points to 2001:8d8:fe:53:5747:2a74:d:13 and 217.160.80.140
shades05.rzone.de points to 2607:f1c0:fe:53:185:132:34:132 and 185.132.34.132
Mail Servers
schulbau.de is handled by a single mail server, schulbau-de.mail.protection.outlook.com.
Host name schulbau-de.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca04::2, 2a01:111:f403:ca04::6, 2a01:111:f403:ca09::6, 2a01:111:f403:ca09::c, 52.101.68.5, 52.101.73.8, 52.101.73.26 and 52.101.73.30.