holtec.dk

📜 Historical scan 2026-09-28 00:21:53 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

holtec.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 16 February 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 78.46.10.53 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by holtec-dk.mail.protection.outlook.com. 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 36ms

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 44ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
78.46.10.53	3600s	dedi1853.your-server.de	AS24940	Hetzner Online GmbH	78.46.0.0/15	🇩🇪 Germany	Nuremberg

📧 MX Records#

1 records 41ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	holtec-dk.mail.protection.outlook.com	2a01:111:f403:ca09::26 2a01:111:f403:ca21::c 2a01:111:f403:ca21::e 2a01:111:f403:ca38::8 52.101.209.28 52.101.68.12 52.101.68.8 52.101.73.155	mail-am8pr83cu00106.inbound.protection.outlook.com mail-matpr04cu00204.inbound.protection.outlook.com mail-matpr04cu00306.inbound.protection.outlook.com mail-wa4pr04cu00100.inbound.protection.outlook.com mail-cpjpr05cu00104.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-am7pr02cu00203.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 → 40.104.116.24

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 68ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	1	5061	sipfed.online.lync.com

📝 TXT Records#

4 records 173ms

TXT Record
_globalsign-domain-verification=OS3Pe0nvv2Femb6wbipx20logC4GXSarROxm6J8Q34
MS=ms18630889
v=spf1 mx ip4:178.132.236.124 ip4:89.184.153.86 ip4:89.239.198.126 ip4:37.128.222.246 ip4:152.115.131.194 ip4:185.235.208.27 ip4:178.132.236.124 ip4:178.132.236.126 include:spf.protection.outlook.com include:spf.mailanyone.net include:centex.dk include:spf.EU.exclaimer.net -all
vpe=283c09b8

✉️ SPF#

Policy	Record (holtec.dk)
-all (hard fail)	v=spf1 mx ip4:178.132.236.124 ip4:89.184.153.86 ip4:89.239.198.126 ip4:37.128.222.246 ip4:152.115.131.194 ip4:185.235.208.27 ip4:178.132.236.124 ip4:178.132.236.126 include:spf.protection.outlook.com include:spf.mailanyone.net include:centex.dk include:spf.EU.exclaimer.net -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 11:22:52

www CNAME	holtec.dk (all on holtec.dk) → 78.46.10.53 (AS24940)
www vs bare domain	Same network holtec.dk: 78.46.10.53 (AS24940) www.holtec.dk: 78.46.10.53 (AS24940)
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#

80ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026091101
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 2026-10-13 11:40:54

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1998-02-16
Expires	2027-03-31 (164d)

🔗 Same registrant#

2 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
holtecdata.dk	Punktum dk A/S (direct)
hs-tec.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

36ms

44ms

41ms

AAAA

35ms

TXT

173ms

CAA

46ms

HTTPS

45ms

TLSA

608ms

SOA

0ms

MTA-STS

68ms

DNSSEC

80ms

SRV

68ms

Total

1281ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 11:22:52	739ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-28 00:21:53 shown	1281ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-12 23:06:43	1559ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-12 22:58:53	4370ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-19 04:40:52	1368ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-13 22:09:45	1385ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-24 17:52:21	1779ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-24 08:13:28	826ms	2 NS 1 A 1 MX	⚠️ Bogus
2026-06-17 13:41:36	2510ms	2 NS 1 A 1 MX	🔒 Secure