holt-larsen.dk

📜 Historical scan 2026-06-29 19:58:55 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

holt-larsen.dk is a .dk domain served by 3 nameservers (ns1.heimdns.net, ns2.heimdns.net, ns3.heimdns.net). It was registered on 14 March 2007 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx.sohola.net. 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 1678ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.heimdns.net	2a01:4f9:c013:3e15::53 77.42.80.67	ns1.heimdns.net ns1.heimdns.net	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH
ns2.heimdns.net	2a01:4f8:c012:84a2::53 88.99.85.105	ns2.heimdns.net ns2.heimdns.net	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH
ns3.heimdns.net	185.31.77.53 2a00:b920:3:1337:77::53	ns3.heimdns.net ns3.heimdns.net	AS47527 DLX A/S AS47527 DLX A/S

🌍 A Records#

🌍

No A records found

📧 MX Records#

1 records 2267ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1337	1314s	mx.sohola.net	213.142.141.225 2a00:b921:1:1337:10:141:0:225	mx.sohola.net mx.sohola.net	AS47527 DLX A/S AS47527 DLX A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	mx.sohola.net → 213.142.141.225
🔶 Autoconfig	mx.sohola.net → 213.142.141.225

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

1 records 67ms

Priority	Target	SvcParams
1 service	.	alpn="h2"

🔌 SRV Records#

1 records 3703ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	1	1	443	mx.sohola.net

📝 TXT Records#

📝

No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

Policy	Record (_dmarc.holt-larsen.dk)
p=quarantine	v=DMARC1; p=quarantine; pct=100; rua=mailto:eaa17656@in.mailhardener.com,mailto:dmarc@sohola.net; sp=none; aspf=r

📬 MTA-STS#

1826ms

Check	Result
Status	🔒 Enforce
TXT record (_mta-sts)	✓ Found
HTTPS policy	✓ Valid
Mode	enforce
Policy ID	1337
max_age	172800s
Policy MX	mx.sohola.net

📈 TLSRPT#

Status	Report address (rua)
✓ Enabled	mailto:eaa17656@in.mailhardener.com

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-09 20:13:31

www	Exists, no address
www vs bare domain	Neither resolves holt-larsen.dk: no address www.holt-larsen.dk: no address
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
dkim	—	RSA · ~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.

🔗 TLSA / DANE#

1 records 111ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx.sohola.net	DANE-EE · SPKI · SHA-256	B773093E63819E4DD4910A7D61C2F318…

🔐 DNSSEC#

2889ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	resolution failed: ncache nxrrset

🏷️ SOA#

2024ms

Field	Value
Serial	2026062402
Primary NS (MNAME)	ns1.heimdns.net
Responsible (RNAME)	hostmaster@heimdns.net
Refresh	28800s
Retry	7200s
Expire	604800s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-10-11 13:37:36

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2007-03-14
Expires	2027-03-31 (156d)

🔗 Same registrant#

3 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
ipbot.dk	Punktum dk A/S (direct)
mailpass.dk	Punktum dk A/S (direct)
pernilleelisabeth.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

1678ms

2025ms

2267ms

AAAA

3504ms

TXT

4855ms

CAA

4027ms

HTTPS

67ms

TLSA

111ms

SOA

2024ms

MTA-STS

1826ms

DNSSEC

2889ms

SRV

3703ms

Total

5775ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 12:37:03	2101ms	3 NS 0 A 1 MX	🔒 Secure
2026-10-08 12:31:05	1995ms	3 NS 0 A 1 MX	🔒 Secure
2026-09-29 23:07:16	5563ms	3 NS 0 A 1 MX	🔒 Secure
2026-07-05 21:45:59	3856ms	3 NS 0 A 1 MX	🔒 Secure
2026-06-29 19:58:55 shown	5775ms	3 NS 0 A 1 MX	🔒 Secure
2026-06-29 09:49:21	3946ms	3 NS 0 A 1 MX	🔒 Secure
2026-06-27 12:05:47	2129ms	3 NS 0 A 1 MX	🔒 Secure
2026-06-25 09:37:55	1680ms	3 NS 0 A 1 MX	🔒 Secure
2026-06-24 16:54:12	2943ms	2 NS 0 A 1 MX	🔒 Secure
2026-06-24 03:37:11	3325ms	2 NS 0 A 1 MX	🔒 Secure
2026-06-23 17:04:27	3785ms	2 NS 0 A 1 MX	🔒 Secure
2026-06-22 22:09:23	8440ms	2 NS 0 A 1 MX	🔒 Secure
2026-06-22 15:10:59	2019ms	2 NS 0 A 1 MX	🔒 Secure
2026-06-22 14:38:31	4332ms	2 NS 0 A 1 MX	⚠️ Bogus
2026-06-20 22:26:34	2652ms	2 NS 0 A 1 MX	⚠️ Bogus
2026-06-20 12:03:29	1968ms	2 NS 0 A 1 MX	⚠️ Bogus
2026-06-20 06:42:34	3089ms	2 NS 0 A 1 MX	🔒 Secure
2026-06-17 12:14:27	1279ms	2 NS 0 A 1 MX	🔒 Secure