laerkehoej.dk

📜 Historical scan 2026-06-21 12:04:39 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

laerkehoej.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 30 January 2002 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 178.72.23.72 is hosted by Cibicom A/S (AS3342) in Denmark. Mail is handled by laerkehoej-dk.mail.protection.outlook.com. The zone is DNSSEC-signed but currently fails validation, 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 217ms

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 262ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
178.72.23.72	600s	—	AS3342	Cibicom A/S	178.72.16.0/21	🇩🇰 Denmark	—

📧 MX Records#

1 records 255ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	laerkehoej-dk.mail.protection.outlook.com	2a01:111:f403:ca04::9 2a01:111:f403:ca04::a 2a01:111:f403:ca09::3 2a01:111:f403:ca09::e 52.101.68.25 52.101.68.29 52.101.73.22 52.101.73.28	mail-db7pr03cu00601.inbound.protection.outlook.com mail-du0pr03cu00102.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-am7pr05cu00206.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-am7pr05cu00106.inbound.protection.outlook.com mail-am7pr05cu00204.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

📝 TXT Records#

2 records 563ms

TXT Record
MS=ms10700379
v=spf1 ip4:178.72.23.64/26 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (laerkehoej.dk)
-all (hard fail)	v=spf1 ip4:178.72.23.64/26 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.laerkehoej.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:administrator@laerkehoej.dk; fo=s; aspf=s;

📬 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 2026-10-07 22:31:27

www CNAME	laerkehoej.dk (all on laerkehoej.dk) → 178.72.23.72 (AS3342)
www vs bare domain	Same network laerkehoej.dk: 178.72.23.72 (AS3342) www.laerkehoej.dk: 178.72.23.72 (AS3342)
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
selector1	selector1-laerkehoej-dk._domainkey.lindevangendk.onmicrosoft.com	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#

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

🔐 DNSSEC#

466ms

Check	Result
Validation Status	⚠️ Bogus
AD Flag (resolver validates)	✗ Not set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	broken trust chain resolving 'laerkehoej.dk/DNSKEY/IN': 127.0.0.1#53

🏷️ SOA#

162ms

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 2026-10-07 08:43:51

Field	Value
Registrar	dns.services ApS
Registered	2002-01-30
Expires	2027-03-31 (161d)

📋 WHOIS#

⏱️ Lookup Timing#

217ms

262ms

255ms

AAAA

208ms

TXT

563ms

CAA

277ms

HTTPS

170ms

TLSA

234ms

SOA

162ms

MTA-STS

261ms

DNSSEC

466ms

SRV

436ms

Total

2263ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 22:31:27	1017ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-24 13:30:09	849ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-23 20:02:58	940ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-26 21:34:39	3021ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-26 01:32:33	962ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-20 18:24:37	8692ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-16 02:49:40	4043ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-04 19:32:45	1303ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-21 12:04:39 shown	2263ms	2 NS 1 A 1 MX	⚠️ Bogus
2026-06-21 04:40:11	868ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-20 00:57:15	833ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 12:12:48	1100ms	2 NS 1 A 1 MX	🔒 Secure