sdhk.dk

📜 Historical scan 2026-09-17 05:01:15 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sdhk.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 5 December 2012 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.215.3 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by sdhk-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 42ms

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 43ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.215.3	3600s	webcluster1.webpod15-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records#

1 records 38ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	sdhk-dk.mail.protection.outlook.com	2a01:111:f403:ca04::a 2a01:111:f403:ca04::b 2a01:111:f403:ca09::20 2a01:111:f403:ca09::a 52.101.103.39 52.101.185.21 52.101.68.10 52.101.73.153	mail-du0pr03cu00102.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-am7pr02cu00202.inbound.protection.outlook.com mail-miypr05cu00207.inbound.protection.outlook.com mail-zrxpr05cu00105.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-as8pr05cu00401.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 → 40.104.116.56
🔶 Autoconfig	46.30.215.3

🔷 AAAA Records (IPv6)#

1 records 42ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:10e:1d:885f:6d92:711b	3600s	—	AS51468	One.com A/S	2a02:2350:0:0:0:0:0:0/32	🇩🇰 Denmark	Copenhagen

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 108ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

3 records 176ms

TXT Record
gp7f72qyfcvlcg4x74dvwzf3gwdzntr5
MS=ms49463738
v=spf1 +a +mx +a:smtp.mailwall.dk +a:hearing.sdhk.dk +a:hearing5.sdhk.dk include:spf.protection.outlook.com include:_custspf.one.com -all

✉️ SPF#

Policy	Record (sdhk.dk)
-all (hard fail)	v=spf1 +a +mx +a:smtp.mailwall.dk +a:hearing.sdhk.dk +a:hearing5.sdhk.dk include:spf.protection.outlook.com include:_custspf.one.com -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 2026-10-09 04:22:45

www	46.30.215.0 2a02:2350:5:10e:4:cfb0:2d29:dee6 (AS51468) (address records, no CNAME)
www vs bare domain	Same network sdhk.dk: 46.30.215.0 2a02:2350:5:10e:4:cfb0:2d29:dee6 (AS51468) www.sdhk.dk: 46.30.215.0 2a02:2350:5:10e:4:cfb0:2d29:dee6 (AS51468)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 7/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

68ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026083005
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 04:14:15

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2012-12-05
Expires	2026-12-31 (69d)

📋 WHOIS#

⏱️ Lookup Timing#

42ms

43ms

38ms

AAAA

42ms

TXT

176ms

CAA

36ms

HTTPS

45ms

TLSA

1000ms

SOA

0ms

MTA-STS

60ms

DNSSEC

68ms

SRV

108ms

Total

1572ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-04 03:44:59	2592ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-29 03:19:13	1113ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-17 05:01:15 shown	1572ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-31 09:26:25	2674ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-28 10:27:07	9736ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 01:08:08	1651ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-02 00:34:37	894ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-29 08:37:01	631ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-24 07:45:56	1111ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 15:34:17	1611ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 22:36:43	1962ms	2 NS 1 A 1 MX	🔒 Secure