rt93.de - dns.ninja
rt93.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=1781838553 | ||||||
Same first word
Similar names
DNS History
9 records (7 active, 2 former)
●NScns1.alfahosting.info2015-07-21 → 2026-06-19 · 2 obs
● 2026-06-19 03:39:08
●NScns2.alfahosting.info2015-07-21 → 2026-06-19 · 2 obs
● 2026-06-19 03:39:08
●NScns3.alfahosting.info2015-07-21 → 2026-06-19 · 2 obs
● 2026-06-19 03:39:08
○MXmail.rt93.de2015-07-21 → 2020-03-08 · 4 obs
● 2020-03-08 23:57:50
○ 2026-03-07 16:15:14
○ 2026-06-19 03:39:08
●MXmx03.secure-mailgate.com2026-03-07 → 2026-06-19 · 6 obs
● 2026-03-07 16:15:14
● 2026-03-09 03:36:10
○ 2026-04-13 20:00:52
● 2026-04-29 09:29:40
● 2026-06-19 03:39:08
●MXmx04.secure-mailgate.com2026-03-07 → 2026-06-19 · 6 obs
● 2026-03-07 16:15:14
● 2026-03-09 03:36:10
○ 2026-04-13 20:00:52
● 2026-04-29 09:29:40
● 2026-06-19 03:39:08
●MXrt93-de.mail.protection.outlook.com2026-03-07 → 2026-06-19 · 6 obs
● 2026-03-07 16:15:14
● 2026-03-09 03:36:10
○ 2026-04-13 20:00:52
● 2026-04-29 09:29:40
● 2026-06-19 03:39:08
○A109.237.140.222015-07-21 → 2020-03-08 · 4 obs
● 2020-03-08 23:57:50
○ 2026-03-07 16:15:14
○ 2026-06-19 03:39:08
●A5.44.111.562026-03-07 → 2026-06-19 · 6 obs
● 2026-03-07 16:15:14
● 2026-03-09 03:36:10
○ 2026-04-13 20:00:52
● 2026-04-29 09:29:40
● 2026-06-19 03:39:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | z.nic.de, a.nic.de, f.nic.de | - |
| rt93.de | cns3.alfahosting.info, cns2.alfahosting.info, cns1.alfahosting.info | - |
✅ Authoritative Response
Server:109.237.142.8
NS records: cns3.alfahosting.info, cns2.alfahosting.info, cns1.alfahosting.info
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for rt93.de (unsigned zone)
⏱️ Timing
Total: 1420ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 5.44.111.56 |
| NS | 3 | cns3.alfahosting.info, cns2.alfahosting.info... |
| MX | 3 | mx04.secure-mailgate.com (pri: 10), mx03.secure-mailgate.com (pri: 10)... |
| TXT | 2 | v=spf1 include:secure-mailgate.com inclu, MS=ms13528993 |
| SOA | 1 | cns1.alfahosting.info hostmaster.alfahos |
Analysis
IP Addresses
rt93.de resolves to one IP address: 5.44.111.56.
design-touch.de, rozeko.net, mail.obelisk.de and two other host names share IP numbers with rt93.de.
Name Servers
DNS for rt93.de is handled by three authoritative name servers: cns1.alfahosting.info, cns2.alfahosting.info and cns3.alfahosting.info.
rt93.de shares at least some of its name servers with other domains, including strahlungsschutzblech.de, fahrschule-gilching.com, ab-in-die-sauna.de and two others.
These name servers are frequently seen alongside the name servers ns8.alfahosting.info.
Three hostnames — cns1.alfahosting.info, cns2.alfahosting.info and cns3.alfahosting.info — each have two IP addresses: cns1.alfahosting.info has 109.237.142.8 and 2a01:64c0:0:5000::8, cns2.alfahosting.info has 148.251.254.105 and 2a01:4f8:2b02:a88::105, and cns3.alfahosting.info has 109.237.143.8 and 2a02:2b80:101:5000::8.
Mail Servers
rt93.de is handled by three mail servers: mx03.secure-mailgate.com, mx04.secure-mailgate.com and rt93-de.mail.protection.outlook.com.
rt93.de has at least partial mail server overlap with other domains such as de-micheli.it, baumschule-gielow.de, elektroauto.kaufen and two more.
Hostnames that resolve to 8 IP addresses:
rt93-de.mail.protection.outlook.com has IP addresses 52.101.168.0, 52.101.170.0 and 52.101.170.1, plus 5 other.
Hostnames that resolve to two IP addresses:
mx03.secure-mailgate.com has two IP addresses: 46.243.88.174 and 46.243.88.176.
mx04.secure-mailgate.com has two IP addresses: 46.243.88.175 and 46.243.88.177.