sfkro.dk

📜 Historical scan 2026-06-20 07:34:11 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sfkro.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 5 May 2007 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 78.46.3.99 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by sfkro-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no DMARC policy and is reachable over IPv6. 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 142ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.curanet.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 145ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
78.46.3.99	3600s	dedi899.your-server.de	AS24940	Hetzner Online GmbH	78.46.0.0/15	🇩🇪 Germany	Nuremberg

📧 MX Records#

1 records 154ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	sfkro-dk.mail.protection.outlook.com	2a01:111:f403:ca04::b 2a01:111:f403:ca04::d 2a01:111:f403:ca09::4 2a01:111:f403:ca09::e 52.101.68.12 52.101.68.36 52.101.73.2 52.101.73.6	mail-dbbpr03cu00103.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-am7pr05cu00206.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-as9pr07cu00302.inbound.protection.outlook.com mail-am6pr04cu00306.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.101.70.8
🔶 Autoconfig	212.237.249.16

🔷 AAAA Records (IPv6)#

1 records 139ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a01:4f8:d0a:329c::2	3600s	dedi899.your-server.de	AS24940	Hetzner Online GmbH	2a01:4f8:0:0:0:0:0:0/31	🇩🇪 Germany	—

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 259ms

TXT Record
v=spf1 include:spf.protection.outlook.com include:mailgun.org ~all

✉️ SPF#

Policy	Record (sfkro.dk)
~all (soft fail)	v=spf1 include:spf.protection.outlook.com include:mailgun.org ~all

📨 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 2026-10-13 18:10:00

www	78.46.3.99 2a01:4f8:d0a:329c::2 (AS24940) (address records, no CNAME)
www vs bare domain	Same network sfkro.dk: 78.46.3.99 2a01:4f8:d0a:329c::2 (AS24940) www.sfkro.dk: 78.46.3.99 2a01:4f8:d0a:329c::2 (AS24940)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
s1	—	RSA · ~1024 bit below 2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 6/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

262ms

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

🏷️ SOA#

153ms

Field	Value
Serial	2023061501
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-17 01:16:21

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2007-05-05
Expires	2027-05-31 (224d)

🔗 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#

142ms

145ms

154ms

AAAA

139ms

TXT

259ms

CAA

153ms

HTTPS

153ms

TLSA

711ms

SOA

153ms

MTA-STS

127ms

DNSSEC

262ms

SRV

490ms

Total

1531ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-23 18:31:45	836ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-11 11:57:17	1211ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-26 11:33:56	689ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-20 09:14:18	8199ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-20 07:34:11 shown	1531ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 12:20:56	1547ms	2 NS 1 A 1 MX	🔒 Secure