onecore.dk

📜 Historical scan 2026-09-30 18:51:11 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

onecore.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 6 June 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 135.181.45.239 is hosted by Hetzner Online GmbH (AS24940) in Finland. Mail is handled by aspmx1.migadu.com, aspmx2.migadu.com. The zone is DNSSEC-signed and validates, publishes a 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#

3 records 44ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 33ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
135.181.45.239	3600s	static.239.45.181.135.clients.your-server.de	AS24940	Hetzner Online GmbH	135.181.0.0/16	🇫🇮 Finland	Helsinki

📧 MX Records#

2 records 43ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3000s	aspmx1.migadu.com	135.125.171.180 135.125.222.87 2001:41d0:303:648a::1 2001:41d0:700:19b4::1 2001:41d0:700:1a57::1 51.38.57.138	ns3160119.ip-135-125-171.eu ns3160230.ip-135-125-222.eu — — — mizu0.migadu.com	AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS
20	3000s	aspmx2.migadu.com	135.125.171.180 135.125.222.87 2001:41d0:303:648a::1 2001:41d0:700:19b4::1 2001:41d0:700:1a57::1 51.38.57.138	ns3160119.ip-135-125-171.eu ns3160230.ip-135-125-222.eu — — — mizu0.migadu.com	AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	135.181.45.239
🔶 Autoconfig	autoconfig.migadu.com → 141.94.97.141

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

2 records 108ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	0	1	443	autodiscover.migadu.com
_imaps._tcp	0	1	993	imap.migadu.com

📝 TXT Records#

3 records 160ms

TXT Record
brevo-code:612ec7619071733f8d816f5f96e5f65e
hosted-email-verify=ejw4kflr
v=spf1 include:spf.migadu.com ip4:135.181.45.239 -all

✉️ SPF#

Policy	Record (onecore.dk)
-all (hard fail)	v=spf1 include:spf.migadu.com ip4:135.181.45.239 -all

📨 DMARC#

Policy	Record (_dmarc.onecore.dk)
p=quarantine	v=DMARC1; p=quarantine;

📬 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 2026-10-13 06:41:03

www	135.181.45.239 (AS24940) (address records, no CNAME)
www vs bare domain	Same network onecore.dk: 135.181.45.239 (AS24940) www.onecore.dk: 135.181.45.239 (AS24940)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 5/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

65ms

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

🏷️ SOA#

47ms

Field	Value
Serial	2026070802
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-13 07:04:26

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2024-06-06
Expires	2027-06-05 (228d)

🔗 Same registrant#

7 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).

Domain	Registrar
danielfrank.dk	Punktum dk A/S (direct)
koldfronten.dk	Punktum dk A/S (direct)
ringsoepark.dk	Punktum dk A/S (direct)
ringsopark.dk	Punktum dk A/S (direct)
scrappy.dk	Punktum dk A/S (direct)
sella.dk	Punktum dk A/S (direct)
tvfri.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

44ms

33ms

43ms

AAAA

36ms

TXT

160ms

CAA

43ms

HTTPS

20ms

TLSA

190ms

SOA

47ms

MTA-STS

58ms

DNSSEC

65ms

SRV

108ms

Total

1157ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 06:41:03	673ms	3 NS 1 A 2 MX	🔒 Secure
2026-10-02 18:57:37	770ms	3 NS 1 A 2 MX	🔒 Secure
2026-09-30 18:51:11 shown	1157ms	3 NS 1 A 2 MX	🔒 Secure
2026-07-08 18:10:09	1889ms	3 NS 1 A 2 MX	🔒 Secure
2026-07-07 04:06:24	9274ms	3 NS 1 A 0 MX	🔒 Secure
2026-07-02 12:09:10	796ms	3 NS 1 A 0 MX	🔒 Secure
2026-06-26 10:26:23	545ms	3 NS 1 A 0 MX	🔒 Secure
2026-06-24 14:06:12	898ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-24 10:35:36	1174ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 22:31:15	659ms	3 NS 1 A 0 MX	🔒 Secure