headenergy.dk

📜 Historical scan 2026-06-17 10:52:48 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

headenergy.dk is a .dk domain served by 2 nameservers (jack.ns.cloudflare.com, luciana.ns.cloudflare.com). It was registered on 2 March 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.0.134 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by headenergy-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, 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 65ms

Nameserver	IP addresses	PTR	ASN / ISP
jack.ns.cloudflare.com	108.162.193.121 172.64.33.121 173.245.59.121 2606:4700:58::adf5:3b79 2803:f800:50::6ca2:c179 2a06:98c1:50::ac40:2179	jack.ns.cloudflare.com jack.ns.cloudflare.com jack.ns.cloudflare.com jack.ns.cloudflare.com jack.ns.cloudflare.com jack.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
luciana.ns.cloudflare.com	108.162.194.131 162.159.38.131 172.64.34.131 2606:4700:50::a29f:2683 2803:f800:50::6ca2:c283 2a06:98c1:50::ac40:2283	luciana.ns.cloudflare.com luciana.ns.cloudflare.com luciana.ns.cloudflare.com luciana.ns.cloudflare.com luciana.ns.cloudflare.com luciana.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 72ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.0.134	—	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.150.253	—	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 63ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	—	headenergy-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca09::c 2a01:111:f403:ca09::d 2a01:111:f403:ca09::f 52.101.68.16 52.101.73.1 52.101.73.11 52.101.73.15	mail-dbapr03cu00100.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-am3pr04cu00501.inbound.protection.outlook.com mail-am1pr04cu00103.inbound.protection.outlook.com mail-am9pr04cu00107.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

🔷 AAAA Records (IPv6)#

2 records 62ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3034::ac43:96fd	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::6815:86	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 62ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.0.134,172.67.150.253 ech=AEX+DQBB4AAgACDCYF+8kn+lkITHi/BN3p8uJF8P53PV1auDSJxA263SZwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::ac43:96fd,2606:4700:3036::6815:86

📝 TXT Records#

6 records 265ms

TXT Record
anthropic-domain-verification-y7tqkf=EGfJlRbomxXtupJd7B3wYB5UD
apple-domain-verification=m8tgrKOJwBS0hkpj
google-site-verification=VFH2RMIyQqLJEWi6tExYmWOodibRsRua6f804riwKoo
MS=ms12828888
openai-domain-verification=dv-buiQNJVqrMChFH22sULYkDsf
v=spf1 include:headenergy.no include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (headenergy.dk)
-all (hard fail)	v=spf1 include:headenergy.no include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.headenergy.dk)
p=none (monitor only)	v=DMARC1; p=none

📬 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 2026-10-15 17:11:37

www	104.21.0.134 172.67.150.253 2606:4700:3030::6815:86 2606:4700:3037::ac43:96fd (AS13335) (address records, no CNAME)
www vs bare domain	Same network headenergy.dk: 188.114.96.1 188.114.97.1 2606:4700:3030::6815:86 2606:4700:3037::ac43:96fd (AS13335) www.headenergy.dk: 104.21.0.134 172.67.150.253 2606:4700:3030::6815:86 2606:4700:3037::ac43:96fd (AS13335)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-headenergy-dk._domainkey.headenergynoas.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: 14/10 · policy: -all

error 14 DNS lookups: the limit is 10, so a receiver whose evaluation gets past the 10th returns permerror (SPF fails)

🔗 TLSA / DANE#

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

🔐 DNSSEC#

154ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

63ms

Field	Value
Serial	2405102091
Primary NS (MNAME)	jack.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-13 12:19:24

Field	Value
Registrar	Domeneshop AS
Registered	2016-03-02
Expires	2027-03-31 (163d)

🔗 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#

65ms

72ms

63ms

AAAA

62ms

TXT

265ms

CAA

61ms

HTTPS

62ms

TLSA

322ms

SOA

63ms

MTA-STS

81ms

DNSSEC

154ms

SRV

0ms

Total

1743ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-15 17:11:37	2153ms	2 NS 2 A 1 MX	🔒 Secure
2026-10-09 09:59:20	1700ms	2 NS 2 A 1 MX	🔒 Secure
2026-10-01 04:41:21	1486ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-22 22:43:47	1394ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-28 20:51:46	2427ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-27 20:16:32	1292ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-27 01:20:42	1202ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-04 15:13:32	4151ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-24 14:38:53	9282ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-11 13:11:31	1756ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-29 06:54:01	2462ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-25 14:06:53	3700ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-24 06:50:06	1629ms	2 NS 2 A 1 MX	⚠️ Bogus
2026-06-23 03:35:12	1368ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-21 12:14:49	2428ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-21 10:28:05	913ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-19 05:41:29	1265ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-17 10:59:55	1222ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-17 10:52:48 shown	1743ms	2 NS 2 A 1 MX	🔒 Secure