cfk-online.de - robtex.com
cfk-online.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=1778333397 | ||||||
Subdomains
www.cfk-online.de |
Same first word
Similar names
DNS History
12 records (5 active, 7 former)
●NScns1.alfahosting.info2016-09-15 → 2026-05-09 · 3 obs
● 2016-09-15 06:14:14
● 2026-05-09 13:39:28
●NScns2.alfahosting.info2016-09-15 → 2026-05-09 · 3 obs
● 2016-09-15 06:14:14
● 2026-05-09 13:39:28
●NScns3.alfahosting.info2016-09-15 → 2026-05-09 · 3 obs
● 2016-09-15 06:14:14
● 2026-05-09 13:39:28
○NSns39.1und1.de2015-06-11 → 2016-04-09 · 4 obs
● 2016-04-09 01:58:30
○ 2016-09-15 06:14:14
○ 2026-05-09 13:39:28
○NSns40.1und1.de2015-06-11 → 2016-04-09 · 4 obs
● 2016-04-09 01:58:30
○ 2016-09-15 06:14:14
○ 2026-05-09 13:39:28
●MXcfkonline-de0i.mail.protection.outlook.com2026-05-09 → 2026-05-09 · 3 obs
● 2026-05-09 13:39:26
● 2026-05-09 13:39:28
○MXmail.cfk-online.de2016-09-15 → 2017-04-05 · 5 obs
● 2016-09-15 06:14:14
● 2017-04-05 11:41:48
○ 2026-05-09 13:39:26
○ 2026-05-09 13:39:28
○MXmx00.kundenserver.de2015-06-11 → 2016-04-09 · 4 obs
● 2016-04-09 01:58:30
○ 2016-09-15 06:14:14
○ 2026-05-09 13:39:28
○MXmx01.kundenserver.de2015-06-11 → 2016-04-09 · 4 obs
● 2016-04-09 01:58:30
○ 2016-09-15 06:14:14
○ 2026-05-09 13:39:28
○A109.237.132.562016-09-15 → 2017-04-05 · 5 obs
● 2016-09-15 06:14:14
● 2017-04-05 11:41:48
○ 2026-05-09 13:39:26
○ 2026-05-09 13:39:28
●A81.88.34.2292026-05-09 → 2026-05-09 · 3 obs
● 2026-05-09 13:39:26
● 2026-05-09 13:39:28
○A87.106.2.1672015-06-11 → 2016-04-09 · 4 obs
● 2016-04-09 01:58:30
○ 2016-09-15 06:14:14
○ 2026-05-09 13:39:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| cfk-online.de | cns1.alfahosting.info, cns2.alfahosting.info, cns3.alfahosting.info | - |
✅ Authoritative Response
Server:109.237.142.8
NS records: cns1.alfahosting.info, cns2.alfahosting.info, cns3.alfahosting.info
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cfk-online.de (unsigned zone)
⏱️ Timing
Total: 995ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.88.34.229 |
| NS | 3 | cns2.alfahosting.info, cns3.alfahosting.info... |
| MX | 1 | cfkonline-de0i.mail.protection.outlook.c |
| TXT | 4 | facebook-domain-verification=f1d4yjmjdt2, MS=ms68413929... |
| SOA | 1 | cns1.alfahosting.info hostmaster@alfahos |
Analysis
Hierarchy
cfk-online.de is the parent of www.cfk-online.de.
IP Addresses
cfk-online.de resolves to one IP number: 81.88.34.229.
other host names including mail.katzenblogs.de, mail.pressepartner.de, mail.moduplan.com, www.platzhirsch-pirna.de and kornwein.de share IP numbers with cfk-online.de.
Name Servers
cfk-online.de is delegated to three name servers cns1.alfahosting.info, cns2.alfahosting.info and cns3.alfahosting.info.
cfk-online.de at least partially shares name servers with other domains, for instance comconsult.com, sharonnext.com, gullich.de, mena3d.net and bookfarm.at.
Host names with two IP numbers:
cns1.alfahosting.info points to: 2a01:64c0:0:5000::8 and 109.237.142.8.
cns2.alfahosting.info points to: 2a01:4f8:2b02:a88::105 and 148.251.254.105.
cns3.alfahosting.info points to: 2a02:2b80:101:5000::8 and 109.237.143.8.
Mail Servers
cfk-online.de is handled by a single mail server, cfkonline-de0i.mail.protection.outlook.com.
Host cfkonline-de0i.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca04::8, 2a01:111:f403:ca09::6, 2a01:111:f403:ca09::e, 2a01:111:f403:ca09::20, 52.101.68.5, 52.101.68.10, 52.101.68.21 and 52.101.73.4.