core.dk

📜 Historical scan 2026-10-14 22:27:47 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

core.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 28 April 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 114ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 88ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
193.162.142.80	43200s	—	—	—	—	🇩🇰 Denmark	—

📧 MX Records#

5 records 115ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	aspmx.l.google.com	142.251.127.27 2a00:1450:4001:c21::1a	lcfrai-in-f27.1e100.net lcfrai-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt1.aspmx.l.google.com	142.250.147.26 2a00:1450:4025:c01::1a	rd-in-f26.1e100.net rd-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt2.aspmx.l.google.com	172.253.152.26 2a00:1450:4010:c22::1b	yulpptr-in-f26.1e100.net yulpptr-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	aspmx2.googlemail.com	142.250.147.27 2a00:1450:4025:c01::1b	rd-in-f27.1e100.net rd-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	aspmx3.googlemail.com	172.253.152.27 2a00:1450:4010:c22::1b	yulpptr-in-f27.1e100.net yulpptr-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

📝

No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-21 07:10:11

www	193.162.142.80 (address records, no CNAME)
www vs bare domain	Same network core.dk: 193.162.142.80 www.core.dk: 193.162.142.80
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

314ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

71ms

Field	Value
Serial	2026101401
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-14 22:48:47

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1997-04-28
Expires	2027-06-30 (252d)

🔗 Same registrant#

0 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

114ms

88ms

115ms

AAAA

196ms

TXT

293ms

CAA

102ms

HTTPS

112ms

TLSA

434ms

SOA

71ms

MTA-STS

204ms

DNSSEC

314ms

SRV

215ms

Total

1723ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-21 07:10:11	536ms	2 NS 1 A 5 MX	🔒 Secure
2026-10-14 22:27:47 shown	1723ms	2 NS 1 A 5 MX	🔒 Secure
2026-09-30 01:44:45	573ms	2 NS 1 A 5 MX	🔒 Secure
2026-09-16 01:13:30	849ms	2 NS 1 A 5 MX	🔒 Secure
2026-08-15 17:37:22	4656ms	2 NS 1 A 5 MX	🔒 Secure
2026-07-14 07:32:48	2241ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-28 17:04:43	752ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-25 19:39:22	3539ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-24 08:29:15	904ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 03:14:54	1417ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-16 22:25:36	1031ms	2 NS 1 A 5 MX	🔒 Secure