opencore.dk

📜 Historical scan 2026-06-17 19:24:01 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

opencore.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 28 September 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 80.63.102.90 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by mx1.pub.mailpod11-cph3.one.com, mx2.pub.mailpod11-cph3.one.com and 2 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 78ms

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 61ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
80.63.102.90	—	—	AS3292	TDC Holding A/S	80.62.0.0/15	🇩🇰 Denmark	Taastrup

📧 MX Records#

4 records 65ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	mx1.pub.mailpod11-cph3.one.com	104.37.34.230	mx1.pub.mailpod11-cph3.one.com	AS51468 One.com A/S
10	—	mx2.pub.mailpod11-cph3.one.com	104.37.34.231	mx2.pub.mailpod11-cph3.one.com	AS51468 One.com A/S
10	—	mx3.pub.mailpod11-cph3.one.com	104.37.34.232	mx3.pub.mailpod11-cph3.one.com	AS51468 One.com A/S
10	—	mx4.pub.mailpod11-cph3.one.com	104.37.34.233	mx4.pub.mailpod11-cph3.one.com	AS51468 One.com A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	opencore.dk → 80.63.102.90
🔶 Autoconfig	opencore.dk → 80.63.102.90

🔷 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 2026-10-11 13:59:51

www	80.63.102.90 (AS3292) (address records, no CNAME)
www vs bare domain	Same network opencore.dk: 80.63.102.90 (AS3292) www.opencore.dk: 80.63.102.90 (AS3292)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔗 TLSA / DANE#

4 records 53ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.pub.mailpod11-cph3.one.com	DANE-EE · SPKI · SHA-256	00E55642F312E05CDB899B1433EDF47F…
SMTP _25._tcp.mx2.pub.mailpod11-cph3.one.com	DANE-EE · SPKI · SHA-256	00E55642F312E05CDB899B1433EDF47F…
SMTP _25._tcp.mx3.pub.mailpod11-cph3.one.com	DANE-EE · SPKI · SHA-256	00E55642F312E05CDB899B1433EDF47F…
SMTP _25._tcp.mx4.pub.mailpod11-cph3.one.com	DANE-EE · SPKI · SHA-256	00E55642F312E05CDB899B1433EDF47F…

🔐 DNSSEC#

174ms

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

🏷️ SOA#

65ms

Field	Value
Serial	2026041603
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 2026-10-04 09:00:32

Field	Value
Registrar	ONE.COM A/S
Registered	2021-09-28
Expires	2027-09-27 (344d)

📋 WHOIS#

⏱️ Lookup Timing#

78ms

61ms

65ms

AAAA

63ms

TXT

298ms

CAA

66ms

HTTPS

65ms

TLSA

53ms

SOA

65ms

MTA-STS

159ms

DNSSEC

174ms

SRV

276ms

Total

934ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-04 08:23:22	534ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-29 07:52:00	807ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-27 07:13:17	680ms	2 NS 1 A 4 MX	🔒 Secure
2026-09-23 13:36:56	861ms	2 NS 1 A 4 MX	🔒 Secure
2026-09-11 17:27:33	910ms	2 NS 1 A 4 MX	🔒 Secure
2026-06-17 19:24:01 shown	934ms	2 NS 1 A 4 MX	🔒 Secure