heibaek.dk

📜 Historical scan 2026-06-21 12:33:11 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

heibaek.dk is a .dk domain served by 2 nameservers (damon.ns.cloudflare.com, melinda.ns.cloudflare.com). It was registered on 12 March 2007 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.68.137 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by heibaek-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. 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 48ms

Nameserver	IP addresses	PTR	ASN / ISP
damon.ns.cloudflare.com	108.162.193.96 172.64.33.96 173.245.59.96 2606:4700:58::adf5:3b60 2803:f800:50::6ca2:c160 2a06:98c1:50::ac40:2160	damon.ns.cloudflare.com damon.ns.cloudflare.com damon.ns.cloudflare.com damon.ns.cloudflare.com damon.ns.cloudflare.com damon.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
melinda.ns.cloudflare.com	108.162.192.198 172.64.32.198 173.245.58.198 2606:4700:50::adf5:3ac6 2803:f800:50::6ca2:c0c6 2a06:98c1:50::ac40:20c6	melinda.ns.cloudflare.com melinda.ns.cloudflare.com melinda.ns.cloudflare.com melinda.ns.cloudflare.com melinda.ns.cloudflare.com melinda.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 43ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.68.137	600s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.195.236	600s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 36ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	heibaek-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca04::10 2a01:111:f403:ca04::2 2a01:111:f403:ca09::d 52.101.68.18 52.101.68.8 52.101.73.19 52.101.73.28	mail-db7pr03cu00401.inbound.protection.outlook.com mail-dbapr03cu00100.inbound.protection.outlook.com mail-du2pr03cu00102.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-as8pr04cu00803.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 → 52.98.212.200

🔷 AAAA Records (IPv6)#

2 records 48ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::6815:4489	600s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::ac43:c3ec	600s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 44ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.68.137,172.67.195.236 ech=AEX+DQBBuQAgACCb715ltOhHF/AsOemgjjy7bjnqXOCCDW5kHAz/gxe1OgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:4489,2606:4700:3037::ac43:c3ec

📝 TXT Records#

3 records 177ms

TXT Record
brevo-code:c0cc617b9e4a19e18118ab6d1ce8864f
MS=ms43022318
v=spf1 include:spf.protection.outlook.com a mx include:spf.curanet.dk include:web.shared.mysmtp.com -all

✉️ SPF#

Policy	Record (heibaek.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com a mx include:spf.curanet.dk include:web.shared.mysmtp.com -all

📨 DMARC#

Policy	Record (_dmarc.heibaek.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.com

📬 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 2026-10-22 05:02:40

www	104.21.68.137 172.67.195.236 2606:4700:3030::6815:4489 2606:4700:3032::ac43:c3ec (AS13335) (address records, no CNAME)
www vs bare domain	Same network heibaek.dk: 104.21.68.137 172.67.195.236 2606:4700:3030::6815:4489 2606:4700:3032::ac43:c3ec (AS13335) www.heibaek.dk: 104.21.68.137 172.67.195.236 2606:4700:3030::6815:4489 2606:4700:3032::ac43:c3ec (AS13335)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	Delete signal: the zone asks the registry to remove its DS (go insecure) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-heibaek-dk._domainkey.heibaek.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: 10/10 · policy: -all

warn 10 of the 10 allowed DNS lookups used: one more include can break SPF

🔗 TLSA / DANE#

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

🔐 DNSSEC#

73ms

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

🏷️ SOA#

41ms

Field	Value
Serial	2406038009
Primary NS (MNAME)	damon.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-12 08:49:32

Field	Value
Registrar	CURANET A/S
Registered	2007-03-12
Expires	2027-03-31 (156d)

🔗 Same registrant#

0 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).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

48ms

43ms

36ms

AAAA

48ms

TXT

177ms

CAA

41ms

HTTPS

44ms

TLSA

471ms

SOA

41ms

MTA-STS

42ms

DNSSEC

73ms

SRV

65ms

Total

984ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-22 05:02:40	1186ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-02 18:58:24	1079ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-30 18:44:14	1427ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-27 17:29:20	1396ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-11 20:12:47	1872ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-04 19:31:08	1594ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-15 09:07:50	6098ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-22 20:41:14	10522ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-08 22:02:45	1444ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-02 10:15:46	5856ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-21 12:33:11 shown	984ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-17 11:00:52	1860ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-17 10:58:39	1365ms	2 NS 2 A 1 MX	🔓 Insecure