1class.dk - dns.ninja
1class.dk
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 191.235.208.12🇮🇪 Microsoft191.232.0.0/13 MICROSOFT | ||||||
| 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 | mx1.pub.mailpod11-cph3.one.com ⭐ | ||||||
| A | 104.37.34.230🇩🇰 ONECOM104.37.32.0/21 One.com A/S | ||||||
| PTR | mx1.pub.mailpod11-cph3.one.com | ||||||
| MX | mx2.pub.mailpod11-cph3.one.com ⭐ | ||||||
| A | 104.37.34.231🇩🇰 ONECOM104.37.32.0/21 One.com A/S | ||||||
| PTR | mx2.pub.mailpod11-cph3.one.com | ||||||
| MX | mx3.pub.mailpod11-cph3.one.com ⭐ | ||||||
| A | 104.37.34.232🇩🇰 ONECOM104.37.32.0/21 One.com A/S | ||||||
| PTR | mx3.pub.mailpod11-cph3.one.com | ||||||
| MX | mx4.pub.mailpod11-cph3.one.com ⭐ | ||||||
| A | 104.37.34.233🇩🇰 ONECOM104.37.32.0/21 One.com A/S | ||||||
| PTR | mx4.pub.mailpod11-cph3.one.com | ||||||
| SOA | ns01.one.comhostmaster@one.com 2026-03-06 #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 1786835880localtime Sun Aug 16 01:18:00 2026gmtime Sat Au... | ||||||
| SOA | b.nic.dktech@punktum.dk serial=1786835880 | ||||||
Same first word
1class.de |
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 |
Similar names
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 |
class1.com |
class1.co.kr |
DNS History
12 records (7 active, 5 former)
●NSns01.one.com2026-02-28 → 2026-08-15 · 3 obs
● 2026-02-28 05:01:38
● 2026-08-15 23:20:58
●NSns02.one.com2026-02-28 → 2026-08-15 · 3 obs
● 2026-02-28 05:01:38
● 2026-08-15 23:20:58
○NSns1.gratisdns.dk2015-08-18 → 2017-02-17 · 4 obs
● 2017-02-17 16:39:26
○ 2026-02-28 05:01:38
○ 2026-08-15 23:20:58
○NSns2.gratisdns.dk2015-08-18 → 2017-02-17 · 4 obs
● 2017-02-17 16:39:26
○ 2026-02-28 05:01:38
○ 2026-08-15 23:20:58
○NSns3.gratisdns.dk2015-08-18 → 2017-02-17 · 4 obs
● 2017-02-17 16:39:26
○ 2026-02-28 05:01:38
○ 2026-08-15 23:20:58
○NSns4.gratisdns.dk2015-08-18 → 2017-02-17 · 4 obs
● 2017-02-17 16:39:26
○ 2026-02-28 05:01:38
○ 2026-08-15 23:20:58
○NSns5.gratisdns.dk2015-08-18 → 2017-02-17 · 4 obs
● 2017-02-17 16:39:26
○ 2026-02-28 05:01:38
○ 2026-08-15 23:20:58
●MXmx1.pub.mailpod11-cph3.one.com2026-02-28 → 2026-08-15 · 2 obs
● 2026-08-15 23:20:58
●MXmx2.pub.mailpod11-cph3.one.com2026-02-28 → 2026-08-15 · 2 obs
● 2026-08-15 23:20:58
●MXmx3.pub.mailpod11-cph3.one.com2026-02-28 → 2026-08-15 · 2 obs
● 2026-08-15 23:20:58
●MXmx4.pub.mailpod11-cph3.one.com2026-02-28 → 2026-08-15 · 2 obs
● 2026-08-15 23:20:58
●A191.235.208.122015-08-18 → 2026-08-15 · 2 obs
● 2026-08-15 23:20:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| dk | b.nic.dk, h.nic.dk, t.nic.dk, c.nic.dk... | - |
| 1class.dk | ns02.one.com, ns01.one.com | - |
✅ Authoritative Response
Server:195.206.121.10
NS records: ns02.one.com, ns01.one.com
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1008ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 191.235.208.12 |
| NS | 2 | ns01.one.com, ns02.one.com |
| MX | 4 | mx3.pub.mailpod11-cph3.one.com (pri: 10), mx1.pub.mailpod11-cph3.one.com (pri: 10)... |
| SOA | 1 | ns01.one.com hostmaster.one.com |
Analysis
IP Addresses
1class.dk directs to one IP number, which is 191.235.208.12.
Among the host names that share IP numbers with 1class.dk are to.dk, ymparistosuunnittelu.com, track.dk and two others.
Name Servers
DNS delegation for 1class.dk points to two name servers: ns01.one.com and ns02.one.com.
1class.dk has the same name server delegation as a number of other domains, such as boniq.se, i-pro.info, atjenny.com and two more.
ns01.one.com directs to 195.206.121.10 and 2001:67c:28cc::10. ns02.one.com directs to 185.10.11.10 and 2001:67c:3c0::10. Each host name carries two IP addresses.
Mail Servers
The four mail servers for 1class.dk are mx1.pub.mailpod11-cph3.one.com, mx2.pub.mailpod11-cph3.one.com, mx3.pub.mailpod11-cph3.one.com and mx4.pub.mailpod11-cph3.one.com.
1class.dk shares at least some of its mail servers with other domains — for example boklion.com, thpg.se, graphicsag.com and two more.
mx1.pub.mailpod11-cph3.one.com resolves to 104.37.34.230. mx2.pub.mailpod11-cph3.one.com resolves to 104.37.34.231. mx3.pub.mailpod11-cph3.one.com resolves to 104.37.34.232. mx4.pub.mailpod11-cph3.one.com resolves to 104.37.34.233. All four hosts carry exactly one IP address.