app-koeln.de - robtex.com
app-koeln.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=1774452726 | ||||||
Same first word
app-koeln.de |
DNS History
9 records (5 active, 4 former)
○NSb1.wpns.hosteurope.de2015-05-24 → 2020-03-16 · 4 obs
● 2020-03-16 07:21:14
○ 2026-02-18 00:40:48
○ 2026-03-25 16:00:02
○NSb1.wsns.hosteurope.de2015-05-24 → 2020-03-16 · 4 obs
● 2020-03-16 07:21:14
○ 2026-02-18 00:40:48
○ 2026-03-25 16:00:02
●NSns67.domaincontrol.com2026-02-18 → 2026-03-25 · 3 obs
● 2026-02-18 00:40:48
● 2026-03-25 16:00:02
●NSns68.domaincontrol.com2026-02-18 → 2026-03-25 · 3 obs
● 2026-02-18 00:40:48
● 2026-03-25 16:00:02
●MXappkoeln-de0i.mail.protection.outlook.com2026-02-18 → 2026-03-25 · 3 obs
● 2026-02-18 00:40:48
● 2026-03-25 16:00:02
○MXmx0.app-koeln.de2015-05-24 → 2017-04-01 · 4 obs
● 2017-04-01 15:14:32
○ 2020-03-16 07:21:14
○ 2026-03-25 16:00:02
○MXmx1.app-koeln.de2020-03-16 → 2020-03-16 · 4 obs
● 2020-03-16 07:21:14
○ 2026-02-18 00:40:48
○ 2026-03-25 16:00:02
●A2a01:488:42:1000:57e6:6982:86:2dcc2015-05-24 → 2026-03-25 · 2 obs
● 2026-03-25 16:00:02
●A87.230.105.1302015-05-24 → 2026-03-25 · 2 obs
● 2026-03-25 16:00:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| app-koeln.de | ns68.domaincontrol.com, ns67.domaincontrol.com | - |
✅ Authoritative Response
Server:173.201.71.44
NS records: ns68.domaincontrol.com, ns67.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for app-koeln.de (unsigned zone)
⏱️ Timing
Total: 702ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 87.230.105.130 |
| AAAA | 1 | 2a01:488:42:1000:57e6:6982:86:2dcc |
| NS | 2 | ns67.domaincontrol.com, ns68.domaincontrol.com |
| MX | 1 | appkoeln-de0i.mail.protection.outlook.co |
| TXT | 2 | v=spf1 include:spf.protection.outlook.co, MS=ms80056131 |
| SOA | 1 | ns67.domaincontrol.com dns.jomax.net |
Analysis
IP Addresses
app-koeln.de resolves to two IP numbers: 2a01:488:42:1000:57e6:6982:86:2dcc and 87.230.105.130.
Other host names, for instance ausbildung-verhaltenstherapie.de, verhaltenstherapie-deutschland.com, psychotherapie-porz.de, verhaltenstherapie-deutschland.org and vwp1374.webpack.hosteurope.de share IP numbers with app-koeln.de.
Name Servers
Two name servers ns67.domaincontrol.com and ns68.domaincontrol.com handle delegation for app-koeln.de.
app-koeln.de uses the same name server setup as other domains, for example valueyourfood.com, kailingke.com, tips.guru, djcardroom.com and drb.nyc.
Host names with two IP numbers:
ns67.domaincontrol.com points to: 2603:5:2174::2c and 97.74.103.44
ns68.domaincontrol.com points to: 2603:5:2274::2c and 173.201.71.44
Mail Servers
app-koeln.de is handled by a single mail server, appkoeln-de0i.mail.protection.outlook.com.
Hostname appkoeln-de0i.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca27::, 2a01:111:f403:ca2d::, 2a01:111:f403:ca2d::1, 2a01:111:f403:ca2d::2, 52.101.168.0, 52.101.170.0, 52.101.170.1 and 52.101.170.2.