holt-larsen.dk

📜 Historical scan 2026-06-20 06:42:34 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

holt-larsen.dk is a .dk domain served by 2 nameservers (ns1.heimdns.net, ns2.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#

2 records 67ms

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

🌍 A Records#

🌍

No A records found

📧 MX Records#

1 records 54ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1337	600s	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#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 393ms

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

📝 TXT Records#

1 records 537ms

TXT Record
v=spf1 include:spf.sohola.net -all

✉️ SPF#

Policy	Record (holt-larsen.dk)
-all (hard fail)	v=spf1 include:spf.sohola.net -all

📨 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#

747ms

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.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

1 records 81ms

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

🔐 DNSSEC#

153ms

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

🏷️ SOA#

135ms

Field	Value
Serial	2026022702
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 (163d)

🔗 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
ipbot.dk	Punktum dk A/S (direct)
mailpass.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

67ms

103ms

54ms

AAAA

136ms

TXT

537ms

CAA

71ms

HTTPS

125ms

TLSA

81ms

SOA

135ms

MTA-STS

747ms

DNSSEC

153ms

SRV

393ms

Total

3089ms

🕐 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	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 shown	3089ms	2 NS 0 A 1 MX	🔒 Secure
2026-06-17 12:14:27	1279ms	2 NS 0 A 1 MX	🔒 Secure