class1.dk - dns.ninja
class1.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 | class1.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 1786752900localtime Sat Aug 15 02:15:00 2026gmtime Sat Au... | ||||||
| SOA | b.nic.dktech@punktum.dk serial=1786752721 | ||||||
MX for
class1.dk |
Same first word
class1.com |
class1.co.kr |
class1.media |
class1.dk |
class1.co.uk |
class1.jp |
class1.net |
class1.fi |
class1.ru |
class1.cn |
class1.de |
class1.cz |
class1.k12.ar.us |
class1.com.br |
Similar names
1class.co.il |
1class.at |
1class.se |
1class.info |
1class.ro |
1class.su |
1class.dk |
1class.net |
1class.it |
1class.co.uk |
1class.ru |
1class.kg |
1class.com |
1class.de |
DNS History
9 records (4 active, 5 former)
●NSns01.one.com2026-04-06 → 2026-08-15 · 3 obs
● 2026-04-06 03:17:58
● 2026-08-15 01:03:42
●NSns02.one.com2026-04-06 → 2026-08-15 · 3 obs
● 2026-04-06 03:17:58
● 2026-08-15 01:03:42
○NSns1.gratisdns.dk2015-12-08 → 2016-07-17 · 4 obs
● 2016-07-17 14:53:58
○ 2026-04-06 03:17:58
○ 2026-08-15 01:03:42
○NSns2.gratisdns.dk2015-12-08 → 2016-07-17 · 4 obs
● 2016-07-17 14:53:58
○ 2026-04-06 03:17:58
○ 2026-08-15 01:03:42
○NSns3.gratisdns.dk2015-12-08 → 2016-07-17 · 4 obs
● 2016-07-17 14:53:58
○ 2026-04-06 03:17:58
○ 2026-08-15 01:03:42
○NSns4.gratisdns.dk2015-12-08 → 2016-07-17 · 4 obs
● 2016-07-17 14:53:58
○ 2026-04-06 03:17:58
○ 2026-08-15 01:03:42
○NSns5.gratisdns.dk2015-12-08 → 2016-07-17 · 4 obs
● 2016-07-17 14:53:58
○ 2026-04-06 03:17:58
○ 2026-08-15 01:03:42
●MXclass1.dk2015-12-08 → 2026-08-15 · 2 obs
● 2026-08-15 01:03:42
●A46.4.40.2032015-12-08 → 2026-08-15 · 2 obs
● 2026-08-15 01:03:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| dk | b.nic.dk, c.nic.dk, h.nic.dk, l.nic.dk... | 12 records |
| class1.dk | ns02.one.com, ns01.one.com | - |
✅ Authoritative Response
Server:185.10.11.10
NS records: ns02.one.com, ns01.one.com
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1095ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 46.4.40.203 |
| NS | 2 | ns02.one.com, ns01.one.com |
| MX | 1 | class1.dk (pri: 10) |
| SOA | 1 | ns01.one.com hostmaster.one.com |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (b.nic.dk, c.nic.dk, h.nic.dk...)
Analysis
Mail Server Role
class1.dk handles its own mail, functioning as its own mail server.
IP Addresses
class1.dk resolves to just one IP address, 46.4.40.203.
Two other host names, along with www.cenergia.dk, codelab.dk and static.203.40.4.46.clients.your-server.de, also share IP numbers with class1.dk.
Name Servers
class1.dk uses two name servers for its delegation: ns01.one.com and ns02.one.com.
class1.dk shares its NS records with other domains, for example desenioren.be, xn--faxe-ira.dk, smartnato.com 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
class1.dk is served by just one mail server: class1.dk.
class1.dk directs to just one IP number, 46.4.40.203.