codingclass.de - robtex.com
codingclass.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 185.199.108.153🇺🇸 Fastly185.199.108.0/24 GitHub - 185.199.108.0/24 | ||||||
| PTR | cdn-185-199-108-153.github.com | ||||||
| NS | cns1.alfahosting.info ⭐ | ||||||
| A | 2a01:64c0:0:5000::8🇩🇪 CLOUDPIT2a01:64c0::/32 | ||||||
| PTR | cns1.cloudpit.de | ||||||
| A | 109.237.142.8🇩🇪 CLOUDPIT109.237.128.0/20 | ||||||
| PTR | cns1.cloudpit.de | ||||||
| NS | cns2.alfahosting.info | ||||||
| A | 2a01:4f8:2b02:a88::105🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | cns2.cloudpit.com | ||||||
| A | 148.251.254.105🇩🇪 Hetzner148.251.0.0/16 HETZNER-RZ-BLK-ERX2 | ||||||
| PTR | cns2.cloudpit.com | ||||||
| NS | cns3.alfahosting.info | ||||||
| A | 2a02:2b80:101:5000::8🇩🇪 CLOUDPIT2a02:2b80:101::/48 | ||||||
| PTR | cns3.cloudpit.io | ||||||
| A | 109.237.143.8🇩🇪 CLOUDPIT109.237.128.0/20 | ||||||
| PTR | cns3.cloudpit.io | ||||||
| MX | mail.codingclass.de ⭐ | ||||||
| A | 0.0.0.0 | ||||||
| TXT | v=spf1 a mx include:secure-mailgate.com ~all | ||||||
| SOA | cns1.alfahosting.infohostmaster@alfahosting@de 2025-08-30 #2 | ||||||
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=1776964893 | ||||||
Subdomains
Same first word
codingclass.com |
codingclass.kr |
codingclass.net |
codingclass.de |
Similar names
DNS History
12 records (5 active, 7 former)
●NScns1.alfahosting.info2026-02-24 → 2026-04-23 · 3 obs
● 2026-02-24 13:38:04
● 2026-04-23 17:24:34
●NScns2.alfahosting.info2026-02-24 → 2026-04-23 · 3 obs
● 2026-02-24 13:38:04
● 2026-04-23 17:24:34
●NScns3.alfahosting.info2026-02-24 → 2026-04-23 · 3 obs
● 2026-02-24 13:38:04
● 2026-04-23 17:24:34
○NSns1.hans.hosteurope.de2015-07-16 → 2017-03-19 · 4 obs
● 2017-03-19 07:45:40
○ 2026-02-24 13:38:04
○ 2026-04-23 17:24:34
○NSns2.hans.hosteurope.de2015-07-16 → 2017-03-19 · 4 obs
● 2017-03-19 07:45:40
○ 2026-02-24 13:38:04
○ 2026-04-23 17:24:34
●MXmail.codingclass.de2026-02-24 → 2026-04-23 · 3 obs
● 2026-02-24 13:38:04
● 2026-04-23 17:24:34
○MXmx0.codingclass.de2015-07-16 → 2017-03-19 · 4 obs
● 2017-03-19 07:45:40
○ 2026-02-24 13:38:04
○ 2026-04-23 17:24:34
●A185.199.108.1532026-02-24 → 2026-04-23 · 3 obs
● 2026-02-24 13:38:04
● 2026-04-23 17:24:34
○A2a01:488:42:1000:50ed:8459:30:dd0d2015-07-16 → 2016-02-27 · 4 obs
● 2016-02-27 14:09:22
○ 2016-07-08 14:17:18
○ 2026-04-23 17:24:34
○A2a01:488:42:1000:50ed:84d6:ff79:faf62016-07-08 → 2017-03-19 · 5 obs
● 2016-07-08 14:17:18
● 2017-03-19 07:45:40
○ 2026-02-24 13:38:04
○ 2026-04-23 17:24:34
○A80.237.132.2142016-07-08 → 2017-03-19 · 5 obs
● 2016-07-08 14:17:18
● 2017-03-19 07:45:40
○ 2026-02-24 13:38:04
○ 2026-04-23 17:24:34
○A80.237.132.892015-07-16 → 2016-02-27 · 4 obs
● 2016-02-27 14:09:22
○ 2016-07-08 14:17:18
○ 2026-04-23 17:24:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| codingclass.de | cns2.alfahosting.info, cns3.alfahosting.info, cns1.alfahosting.info | - |
✅ Authoritative Response
Server:109.237.143.8
NS records: cns2.alfahosting.info, cns3.alfahosting.info, cns1.alfahosting.info
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for codingclass.de (unsigned zone)
⏱️ Timing
Total: 1402ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 185.199.108.153 |
| NS | 3 | cns3.alfahosting.info, cns2.alfahosting.info... |
| MX | 1 | mail.codingclass.de (pri: 10) |
| TXT | 1 | v=spf1 a mx include:secure-mailgate.com |
| SOA | 1 | cns1.alfahosting.info hostmaster@alfahos |
Analysis
Hierarchy
codingclass.de is a parent of mail.codingclass.de and mx0.codingclass.de.
IP Addresses
codingclass.de resolves to one IP number: 185.199.108.153.
other host names including yuko.moe, pixelgrade.github.io, fantingsheng.github.io, brianbasnett.com and www.osvr.github.io share IP numbers with codingclass.de.
Name Servers
codingclass.de is delegated to three name servers cns1.alfahosting.info, cns2.alfahosting.info and cns3.alfahosting.info.
codingclass.de at least partially shares name servers with other domains, for instance schaalbyer.de, heisel.de, jmem-koeln.de, augustinews.de and ebikecity.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
codingclass.de is handled by a single mail server, mail.codingclass.de.