bt-systems.de - robtex.com
bt-systems.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2001:8d8:100f:f000::200🇩🇪 IONOS-AS2001:8d8::/32 DE-IONOS-20020910 | ||||||
| PTR | 2001-08d8-100f-f000-0000-0000-0000-0200.elastic-ssl.ui-r.com | ||||||
| A | 217.160.0.137🇩🇪 IONOS-AS217.160.0.0/16 IONOS-PA-3 | ||||||
| NS | docks13.rzone.de ⭐ | ||||||
| A | 2001:8d8:fe:53:5747:2a74:d:13🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific | ||||||
| PTR | docks13.rzone.de | ||||||
| A | 217.160.80.140🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific | ||||||
| PTR | docks13.rzone.de | ||||||
| NS | shades08.rzone.de | ||||||
| A | 2607:f1c0:fe:53:185:132:34:135🇺🇸 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 | shades08.rzone.de | ||||||
| A | 185.132.34.135🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS) | ||||||
| PTR | shades08.rzone.de | ||||||
| MX | mail.b-t-consulting.de ⭐ | ||||||
| A | 159.69.163.121🇩🇪 Hetzner159.69.0.0/16 HETZNER-DC | ||||||
| PTR | static.121.163.69.159.clients.your-server.de | ||||||
| SOA | docks13.rzone.dehostmaster@strato-rz.de 2020-05-06 #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=1774515622 | ||||||
Same first word
Similar names
bst-system.eu |
bst-system.com |
bst-system.net |
bst-system.org |
bst-system.de |
tb-systems.nl |
systems-tb.de |
tb-systems.de |
stb-system.com |
DNS History
8 records (5 active, 3 former)
●MXmail.b-t-consulting.de2016-07-09 → 2026-03-26 · 3 obs
● 2016-07-09 10:46:52
● 2026-03-26 09:11:40
○MXsmtpin.rzone.de2015-08-11 → 2016-03-18 · 4 obs
● 2016-03-18 07:25:02
○ 2016-07-09 10:46:52
○ 2026-03-26 09:11:40
●A2001:8d8:100f:f000::2002026-03-26 → 2026-03-26 · 2 obs
● 2026-03-26 09:11:40
●A217.160.0.1372026-03-26 → 2026-03-26 · 2 obs
● 2026-03-26 09:11:40
○A2a01:238:20a:202:1074::2015-08-11 → 2017-11-09 · 3 obs
● 2017-11-09 09:46:16
○ 2026-03-26 09:11:40
○A81.169.145.742015-08-11 → 2017-11-09 · 3 obs
● 2017-11-09 09:46:16
○ 2026-03-26 09:11:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| bt-systems.de | docks13.rzone.de, shades08.rzone.de | - |
✅ Authoritative Response
Server:185.132.34.135
NS records: docks13.rzone.de, shades08.rzone.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for bt-systems.de (unsigned zone)
⏱️ Timing
Total: 1092ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 217.160.0.137 |
| AAAA | 1 | 2001:8d8:100f:f000::200 |
| NS | 2 | docks13.rzone.de, shades08.rzone.de |
| MX | 1 | mail.b-t-consulting.de (pri: 10) |
| SOA | 1 | docks13.rzone.de hostmaster.strato-rz.de |
Analysis
IP Addresses
bt-systems.de points to two IPs: 2001:8d8:100f:f000::200 and 217.160.0.137.
Other host names, for instance geburtshaus-ingolstadt.de, tksv-ringen.de, www.buchwurm.info, porsiviajas.es and global-active.de share IP numbers with bt-systems.de.
Name Servers
Two name servers docks13.rzone.de and shades08.rzone.de are delegated to bt-systems.de.
bt-systems.de uses the same name server configuration as other domains, such as termexpert.de, mamabag.de, peg-invoice.com, 2therhythm.com and qualityfruits.de.
bt-systems.de at least partially shares name servers with other domains such as stens.info, magazin1.de, rohloff.email, click-route.de and warda.de.
These name servers are often used together with shades19.rzone.de, shades12.rzone.de, docks05.rzone.de, shades16.rzone.de, shades13.rzone.de, docks12.rzone.de, docks09.rzone.de, shades09.rzone.de, shades15.rzone.de and docks02.rzone.de.
Host names with two IPs:
docks13.rzone.de points to 2001:8d8:fe:53:5747:2a74:d:13 and 217.160.80.140.
shades08.rzone.de points to 2607:f1c0:fe:53:185:132:34:135 and 185.132.34.135.
Mail Servers
bt-systems.de is handled by a single mail server, mail.b-t-consulting.de.
mail.b-t-consulting.de points to one IP number: 159.69.163.121.