ihdt.dk

📜 Historical scan 2026-06-23 09:46:31 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ihdt.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 26 October 2013 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 87.55.100.171 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by mail.ihdt.dk, backup-mx.post.tele.dk. 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 158ms

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 164ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
87.55.100.171	600s	87-55-100-171-cable.dk.customer.tdc.net	AS3292	TDC Holding A/S	87.48.0.0/13	🇩🇰 Denmark	Struer Municipality

📧 MX Records#

2 records 169ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	43200s	mail.ihdt.dk	87.55.100.171	87-55-100-171-cable.dk.customer.tdc.net	AS3292 TDC Holding A/S
50	43200s	backup-mx.post.tele.dk	80.160.77.99	backup-mx1.post.tele.dk	AS3292 TDC Holding A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	87.55.100.171
🔶 Autoconfig	host.ihdt.dk → 87.55.100.171

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 249ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	0	10	443	autodiscover.ihdt.dk

📝 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 2026-10-14 01:13:37

www	87.55.100.171 (AS3292) (address records, no CNAME)
www vs bare domain	Same network ihdt.dk: 87.55.100.171 (AS3292) www.ihdt.dk: 87.55.100.171 (AS3292)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔏 ACME Challenge#

Type	Name	Value
CNAME	_acme-challenge.ihdt.dk	host.ihdt.dk

🔗 TLSA / DANE#

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

🔐 DNSSEC#

259ms

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

🏷️ SOA#

171ms

Field	Value
Serial	2026032401
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 2026-10-06 05:46:23

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2013-10-26
Expires	2027-04-30 (192d)

📋 WHOIS#

⏱️ Lookup Timing#

158ms

164ms

169ms

AAAA

179ms

TXT

333ms

CAA

189ms

HTTPS

212ms

TLSA

110ms

SOA

171ms

MTA-STS

232ms

DNSSEC

259ms

SRV

249ms

Total

777ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 07:29:06	586ms	2 NS 1 A 2 MX	🔒 Secure
2026-09-21 05:58:48	664ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-23 09:46:31 shown	777ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-21 23:04:03	1004ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 14:25:46	1010ms	2 NS 1 A 2 MX	🔒 Secure