heiberg.dk

📜 Historical scan 2026-07-17 02:09:23 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

heiberg.dk is a .dk domain served by 2 nameservers (katelyn.ns.cloudflare.com, yew.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 162.159.140.166 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by heiberg-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, 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 54ms

Nameserver	IP addresses	PTR	ASN / ISP
katelyn.ns.cloudflare.com	108.162.194.235 162.159.38.235 172.64.34.235 2606:4700:50::a29f:26eb 2803:f800:50::6ca2:c2eb 2a06:98c1:50::ac40:22eb	katelyn.ns.cloudflare.com katelyn.ns.cloudflare.com katelyn.ns.cloudflare.com katelyn.ns.cloudflare.com katelyn.ns.cloudflare.com katelyn.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
yew.ns.cloudflare.com	108.162.195.80 162.159.44.80 172.64.35.80 2606:4700:58::a29f:2c50 2803:f800:50::6ca2:c350 2a06:98c1:50::ac40:2350	yew.ns.cloudflare.com yew.ns.cloudflare.com yew.ns.cloudflare.com yew.ns.cloudflare.com yew.ns.cloudflare.com yew.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

1 records 41ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
162.159.140.166	600s	—	AS13335	Cloudflare, Inc.	162.159.128.0/19	—	—

📧 MX Records#

1 records 45ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	heiberg-dk.mail.protection.outlook.com	2a01:111:f403:cc09:: 2a01:111:f403:cc1a::8 2a01:111:f403:cc1f::4 52.101.124.117 52.101.137.0 52.101.157.80	mail-sg2pr03cu00500.inbound.protection.outlook.com mail-tydpr03cu00100.inbound.protection.outlook.com mail-os8pr02cu00104.inbound.protection.outlook.com mail-tydpr03cu00105.inbound.protection.outlook.com mail-sg2pr03cu00500.inbound.protection.outlook.com mail-os8pr02cu00100.inbound.protection.outlook.com	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 → 52.98.149.136

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 116ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

2 records 141ms

TXT Record
mscid=iIBXuvQmIA6tcy6C4uNkRQSCUwuopwErgThE3JiLZhBTAEf+w/9VfYfly0ovzDTtgw0rV7GaiLpfJL9VbPd4Jg==
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (heiberg.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -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 2026-09-30 09:05:54

www CNAME	sites.ludicrous.cloud (all on ludicrous.cloud)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-heiberg-dk._domainkey.beyondltd.onmicrosoft.com	RSA · ~1024 bit below 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#

129ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

0ms

Field	Value
Serial	2409545517
Primary NS (MNAME)	katelyn.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

54ms

41ms

45ms

AAAA

53ms

TXT

141ms

CAA

37ms

HTTPS

55ms

TLSA

252ms

SOA

0ms

MTA-STS

53ms

DNSSEC

129ms

SRV

116ms

Total

1204ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 09:05:54	1223ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-14 17:36:21	1112ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-12 08:40:46	1545ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-06 20:08:20	2174ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-17 02:09:23 shown	1204ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-07 05:03:10	1546ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-20 00:16:39	1860ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-17 11:00:58	1871ms	2 NS 1 A 1 MX	🔓 Insecure