knull.de - dns.ninja
knull.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 217.19.161.7🇩🇪 NORIS-NETWORK217.19.161.0/24 | ||||||
| PTR | tw.de | ||||||
| NS | ns3.teamware-gmbh.de ⭐ | ||||||
| A | 217.19.160.3🇩🇪 NORIS-NETWORK217.19.160.0/24 | ||||||
| PTR | ns3.teamware-gmbh.de | ||||||
| NS | ns.teamware-gmbh.de | ||||||
| A | 212.29.0.1🇩🇪 NORIS-NETWORK212.29.0.0/24 | ||||||
| PTR | ns.teamware-gmbh.de | ||||||
| MX | mail01.tw.de ⭐ | ||||||
| A | 217.19.160.31🇩🇪 NORIS-NETWORK217.19.160.0/24 | ||||||
| PTR | mail01.tw.de | ||||||
| MX | mx01.m-online.net(200) | ||||||
| TXT | v=spf1 mx include:spf.mail.tw.de ~all | ||||||
| SOA | ns.teamware-gmbh.dehostmaster@teamware-gmbh.de 2025-08-01 #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=1786731707 | ||||||
Same first word
Similar names
DNS History
8 records (5 active, 3 former)
●NSns.teamware-gmbh.de2015-09-02 → 2026-08-14 · 2 obs
● 2026-08-14 18:22:48
●NSns3.teamware-gmbh.de2015-09-02 → 2026-08-14 · 2 obs
● 2026-08-14 18:22:48
○MXmail.teamware-gmbh.de2016-10-01 → 2019-06-17 · 5 obs
● 2016-10-01 22:46:14
● 2019-06-17 05:56:24
○ 2026-02-17 14:55:12
○ 2026-08-14 18:22:48
●MXmail01.tw.de2026-02-17 → 2026-08-14 · 3 obs
● 2026-02-17 14:55:12
● 2026-08-14 18:22:48
●MXmx01.m-online.net2015-09-02 → 2026-08-14 · 2 obs
● 2026-08-14 18:22:48
○MXmx01.tmwr.de2015-09-02 → 2016-07-27 · 4 obs
● 2016-07-27 04:18:10
○ 2016-10-01 22:46:14
○ 2026-08-14 18:22:48
○MXrelay.teamware-gmbh.de2015-09-02 → 2019-06-17 · 4 obs
● 2019-06-17 05:56:24
○ 2026-02-17 14:55:12
○ 2026-08-14 18:22:48
●A217.19.161.72026-02-17 → 2026-08-14 · 2 obs
● 2026-08-14 18:22:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| knull.de | ns.teamware-gmbh.de, ns3.teamware-gmbh.de | 3 records |
✅ Authoritative Response
Server:212.29.0.1
NS records: ns.teamware-gmbh.de, ns3.teamware-gmbh.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for knull.de (unsigned zone)
⏱️ Timing
Total: 736ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 217.19.161.7 |
| NS | 2 | ns.teamware-gmbh.de, ns3.teamware-gmbh.de |
| MX | 2 | mail01.tw.de (pri: 50), mx01.m-online.net (pri: 200) |
| TXT | 1 | v=spf1 mx include:spf.mail.tw.de ~all |
| SOA | 1 | ns.teamware-gmbh.de hostmaster.teamware- |
📌 Glue Records Collected
Total: 3
Out-of-bailiwick: 3 (ns3.teamware-gmbh.de, ns.teamware-gmbh.de, ns3.teamware-gmbh.de)
Analysis
IP Addresses
knull.de points to a single IP number: 217.19.161.7.
teukros7.tw.de, www.tw.de, tw.de and uslar-gleichen.com are examples of host names that share IP numbers with knull.de.
Name Servers
Two name servers handle the delegation for knull.de: ns3.teamware-gmbh.de and ns.teamware-gmbh.de.
knull.de shares its name server setup with other domains, including kge-kommunalgrund.de, 12.29.212.in-addr.arpa, wahlomat.eu and two others.
The name servers for knull.de overlap at least in part with those of other domains, including twsoft.de and tmwr.de.
Both ns3.teamware-gmbh.de and ns.teamware-gmbh.de have a single IP address each — ns3.teamware-gmbh.de resolves to 217.19.160.3 while ns.teamware-gmbh.de resolves to 212.29.0.1.
Mail Servers
knull.de has two mail servers: mail01.tw.de and mx01.m-online.net.
knull.de shares its mail server configuration with other domains such as weideneder.de, plaki.com and viversa.eu.
knull.de shares mail servers — at least in part — with other domains, including basketball-bund.com, wuermtaler-nachrichten.de, weidenbuschdeutlmoser.de and two others.
These mail servers are frequently paired with the mail servers mail-in.m-online.net, relay.teamware-gmbh.de, mail.teamware-gmbh.de and mx02.m-online.net.
Host names pointing to a single IP address:
The hostname mail01.tw.de resolves to 217.19.160.31.