codelab.dk - dns.ninja
codelab.dk
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 46.4.40.203🇩🇪 Hetzner46.4.0.0/16 HETZNER-RZ-FKS-BLK3 | ||||||
| PTR | static.203.40.4.46.clients.your-server.de | ||||||
| NS | ns01.one.com ⭐ | ||||||
| A | 2001:67c:28cc::10ONECOM-INFRA2001:67c:28cc::/48 | ||||||
| PTR | ns01.one.com | ||||||
| A | 195.206.121.10ONECOM-INFRA195.206.121.0/24 | ||||||
| PTR | ns01.one.com | ||||||
| NS | ns02.one.com | ||||||
| A | 2001:67c:3c0::10🇩🇰 ONECOM2001:67c:3c0::/48 | ||||||
| PTR | ns02.one.com | ||||||
| A | 185.10.11.10ONECOM185.10.11.0/24 | ||||||
| PTR | ns02.one.com | ||||||
| MX | codelab.dk ⭐ 🔒 | ||||||
| A | 46.4.40.203🇩🇪 Hetzner46.4.0.0/16 HETZNER-RZ-FKS-BLK3 | ||||||
| PTR | static.203.40.4.46.clients.your-server.de | ||||||
| SOA | ns01.one.comhostmaster@one.com 2026-04-14 #1 | ||||||
dk
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | b.nic.dk ⭐ | ||||||
| NS | c.nic.dk | ||||||
| NS | h.nic.dk | ||||||
| NS | l.nic.dk | ||||||
| NS | s.nic.dk | ||||||
| NS | t.nic.dk | ||||||
| TXT | DK zone updateEpoch 1784843641localtime Thu Jul 23 23:54:01 2026gmtime Thu Ju... | ||||||
| SOA | b.nic.dktech@punktum.dk serial=1784843641 | ||||||
MX for
codelab.dk |
Subdomains
Same first word
Similar names
DNS History
9 records (4 active, 5 former)
●NSns01.one.com2026-02-20 → 2026-07-23 · 3 obs
● 2026-02-20 07:59:42
● 2026-07-23 22:11:30
●NSns02.one.com2026-02-20 → 2026-07-23 · 3 obs
● 2026-02-20 07:59:42
● 2026-07-23 22:11:30
○NSns1.gratisdns.dk2015-04-29 → 2018-01-19 · 4 obs
● 2018-01-19 15:39:50
○ 2026-02-20 07:59:42
○ 2026-07-23 22:11:30
○NSns2.gratisdns.dk2015-04-29 → 2018-01-19 · 4 obs
● 2018-01-19 15:39:50
○ 2026-02-20 07:59:42
○ 2026-07-23 22:11:30
○NSns3.gratisdns.dk2015-04-29 → 2018-01-19 · 4 obs
● 2018-01-19 15:39:50
○ 2026-02-20 07:59:42
○ 2026-07-23 22:11:30
○NSns4.gratisdns.dk2015-04-29 → 2018-01-19 · 4 obs
● 2018-01-19 15:39:50
○ 2026-02-20 07:59:42
○ 2026-07-23 22:11:30
○NSns5.gratisdns.dk2015-04-29 → 2018-01-19 · 4 obs
● 2018-01-19 15:39:50
○ 2026-02-20 07:59:42
○ 2026-07-23 22:11:30
●MXcodelab.dk2015-04-29 → 2026-07-23 · 2 obs
● 2026-07-23 22:11:30
●A46.4.40.2032015-04-29 → 2026-07-23 · 2 obs
● 2026-07-23 22:11:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| dk | b.nic.dk, h.nic.dk, t.nic.dk, c.nic.dk... | - |
| codelab.dk | ns01.one.com, ns02.one.com | - |
✅ Authoritative Response
Server:185.10.11.10
NS records: ns01.one.com, ns02.one.com
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 889ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 46.4.40.203 |
| NS | 2 | ns02.one.com, ns01.one.com |
| MX | 1 | codelab.dk (pri: 10) |
| SOA | 1 | ns01.one.com hostmaster.one.com |
Analysis
Hierarchy
codelab.dk serves as the parent of neo.codelab.dk and cypher.codelab.dk.
Mail Server Role
codelab.dk serves as a mail server for codelab.dk.
IP Addresses
codelab.dk has exactly one IP address — 46.4.40.203.
www.cenergia.dk, static.203.40.4.46.clients.your-server.de, cypher.codelab.dk plus two other host names have IP numbers in common with codelab.dk.
Name Servers
codelab.dk uses two name servers for its delegation: ns01.one.com and ns02.one.com.
The name server configuration of codelab.dk is shared with other domains, for instance hooh.dk, laureal.dk, perfetto.dk and two others.
The two host names ns01.one.com and ns02.one.com each have a pair of IP addresses: ns01.one.com has 195.206.121.10 and 2001:67c:28cc::10, and ns02.one.com has 185.10.11.10 and 2001:67c:3c0::10.
Mail Servers
codelab.dk uses exactly one mail server, which is codelab.dk.
codelab.dk directs to just one IP number, 46.4.40.203.