core.dk - dns.ninja
core.dk
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 1784287801localtime Fri Jul 17 13:30:01 2026gmtime Fri Ju... | ||||||
| SOA | b.nic.dktech@punktum.dk serial=1784287801 | ||||||
Subdomains
Same first word
Similar names
DNS History
13 records (8 active, 5 former)
●NSns01.one.com2026-02-16 → 2026-07-17 · 3 obs
● 2026-02-16 22:48:10
● 2026-07-17 11:34:44
●NSns02.one.com2026-02-16 → 2026-07-17 · 3 obs
● 2026-02-16 22:48:10
● 2026-07-17 11:34:44
○NSns1.gratisdns.dk2015-08-20 → 2021-09-15 · 4 obs
● 2021-09-15 00:10:30
○ 2026-02-16 22:48:10
○ 2026-07-17 11:34:44
○NSns2.gratisdns.dk2015-08-20 → 2021-09-15 · 4 obs
● 2021-09-15 00:10:30
○ 2026-02-16 22:48:10
○ 2026-07-17 11:34:44
○NSns3.gratisdns.dk2015-08-20 → 2021-09-15 · 4 obs
● 2021-09-15 00:10:30
○ 2026-02-16 22:48:10
○ 2026-07-17 11:34:44
○NSns4.gratisdns.dk2015-08-20 → 2021-09-15 · 4 obs
● 2021-09-15 00:10:30
○ 2026-02-16 22:48:10
○ 2026-07-17 11:34:44
○NSns5.gratisdns.dk2015-08-20 → 2021-09-15 · 4 obs
● 2021-09-15 00:10:30
○ 2026-02-16 22:48:10
○ 2026-07-17 11:34:44
●MXalt1.aspmx.l.google.com2015-08-20 → 2026-07-17 · 2 obs
● 2026-07-17 11:34:44
●MXalt2.aspmx.l.google.com2015-08-20 → 2026-07-17 · 2 obs
● 2026-07-17 11:34:44
●MXaspmx.l.google.com2015-08-20 → 2026-07-17 · 2 obs
● 2026-07-17 11:34:44
●MXaspmx2.googlemail.com2015-08-20 → 2026-07-17 · 2 obs
● 2026-07-17 11:34:44
●MXaspmx3.googlemail.com2015-08-20 → 2026-07-17 · 2 obs
● 2026-07-17 11:34:44
●A193.162.142.802015-08-20 → 2026-07-17 · 2 obs
● 2026-07-17 11:34:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| dk | b.nic.dk, h.nic.dk, t.nic.dk, c.nic.dk... | - |
| core.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: 1149ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 193.162.142.80 |
| NS | 2 | ns02.one.com, ns01.one.com |
| MX | 5 | aspmx2.googlemail.com (pri: 10), alt1.aspmx.l.google.com (pri: 5)... |
| SOA | 1 | ns01.one.com hostmaster.one.com |
Analysis
Hierarchy
The domain core.dk is parent to www.core.dk, ns1.core.dk and mail.core.dk.
IP Addresses
core.dk points to a single IP number: 193.162.142.80.
Other host names, among them www.core.dk and ns1.core.dk, have IP numbers in common with core.dk.
Name Servers
core.dk has two authoritative name servers — ns01.one.com and ns02.one.com.
core.dk shares its name server setup with other domains, including metaframe.org, hotdok.dk, staffeliet.no and two others.
Both ns01.one.com and ns02.one.com have two IP addresses each. ns01.one.com resolves to 195.206.121.10 and 2001:67c:28cc::10; ns02.one.com resolves to 185.10.11.10 and 2001:67c:3c0::10.
Mail Servers
Five mail servers handle core.dk: aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx.l.google.com and two others.
core.dk shares mail servers — at least in part — with other domains, including fortielabelstudio.com, tmokros.net, horizonlabel.com and two others.
These mail servers are frequently used alongside mail servers alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and 3 other.
Host names with two IP numbers:
aspmx2.googlemail.com resolves to 108.177.123.26 and 2800:3f0:4003:c0f::1b.
aspmx3.googlemail.com resolves to 172.253.116.26 and 2a00:1450:400b:c02::1b.
aspmx.l.google.com resolves to 192.179.18.27 and 2607:f8b0:4004:c25::1b.
alt1.aspmx.l.google.com resolves to 108.177.123.27 and 2800:3f0:4003:c0f::1a.
alt2.aspmx.l.google.com resolves to 172.253.116.26 and 2a00:1450:400b:c02::1a.
The host names aspmx3.googlemail.com and alt2.aspmx.l.google.com both resolve to 172.253.116.26 IP addresses.