cooling-tower.de - robtex.com
cooling-tower.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 91.217.86.113🇩🇪 RITTERNET91.217.86.0/24 BTNET | ||||||
| NS | dns2.btnet.de ⭐ | ||||||
| A | 213.68.194.51🇩🇪 AS702213.68.0.0/14 VERIZON-DE-AGG-149.228 | ||||||
| NS | dns.btnet.de | ||||||
| A | 195.243.214.4🇩🇪 DTAG195.243.0.0/16 Deutsche Telekom AG, Internet service provider | ||||||
| MX | smtp1.active-mailsystem.de ⭐ | ||||||
| A | 217.78.136.82🇩🇪 VERSATEL217.78.128.0/20 Versatel Deutschland | ||||||
| PTR | smtp1.active-mailsystem.de | ||||||
| MX | smtp3.active-mailsystem.de(11) | ||||||
| A | 194.172.160.82🇩🇪 RITTERNET194.172.160.0/24 | ||||||
| PTR | smtp3.active-mailsystem.de | ||||||
| MX | smtp2.active-mailsystem.de(20) | ||||||
| A | 88.79.202.82🇩🇪 VODANET88.64.0.0/12 ARCOR-IP | ||||||
| PTR | smtp2.active-mailsystem.de | ||||||
| SOA | dns.btnet.desysadmin@btnet.de 2025-10-29 #1 | ||||||
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=1778408604 | ||||||
Same first word
DNS History
6 records (6 active, 0 former)
●MXsmtp1.active-mailsystem.de2015-05-30 → 2026-05-10 · 2 obs
● 2026-05-10 10:54:46
●MXsmtp2.active-mailsystem.de2015-05-30 → 2026-05-10 · 2 obs
● 2026-05-10 10:54:46
●MXsmtp3.active-mailsystem.de2015-05-30 → 2026-05-10 · 2 obs
● 2026-05-10 10:54:46
●A91.217.86.1132015-05-30 → 2026-05-10 · 2 obs
● 2026-05-10 10:54:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| cooling-tower.de | dns2.btnet.de, dns.btnet.de | 2 records |
✅ Authoritative Response
Server:195.243.214.4
NS records: dns2.btnet.de, dns.btnet.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cooling-tower.de (unsigned zone)
⏱️ Timing
Total: 676ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 91.217.86.113 |
| NS | 2 | dns.btnet.de, dns2.btnet.de |
| MX | 3 | smtp1.active-mailsystem.de (pri: 10), smtp2.active-mailsystem.de (pri: 20)... |
| SOA | 1 | dns.btnet.de sysadmin.btnet.de |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (dns2.btnet.de, dns.btnet.de)
Analysis
IP Addresses
cooling-tower.de points to a single IP address: 91.217.86.113.
Other host names such as nagorum.com, antischnarchhilfe.de, mercedes-juentgen.de, plastische-operationen.de and snore-stop.eu share IP numbers with cooling-tower.de.
Name Servers
cooling-tower.de is delegated to two name servers: dns2.btnet.de and dns.btnet.de.
cooling-tower.de uses the same name server setup as other domains, including novologodessa.com, m-cti.com, xn--pdexpress-v2a.de, niederberger-berlin.de and gbr-grossbauten-reinigung.de.
At least part of the name servers for cooling-tower.de are shared with other domains, for instance hp-gruppe.de, ssl-data.de, hbs.eu, friederichsonline.nl and schnarchen.de.
These name servers are commonly used alongside dns0.btnet.de and dns3.btnet.de.
Hostnames with a single IP
dns2.btnet.de resolves to: 213.68.194.51.
dns.btnet.de resolves to: 195.243.214.4.
Mail Servers
Three mail servers handle cooling-tower.de: smtp1.active-mailsystem.de, smtp2.active-mailsystem.de and smtp3.active-mailsystem.de.
cooling-tower.de shares at least some mail servers with other domains, for example ritter-elektronik.com, kitnet.de, technologie-verbund.de, routing-manager.com and plastische-operationen.de.
Host names with a single IP:
smtp1.active-mailsystem.de points to: 217.78.136.82
smtp2.active-mailsystem.de points to: 88.79.202.82
smtp3.active-mailsystem.de points to: 194.172.160.82