hcentreprenoeren.dk

📜 Historical scan 2026-08-03 07:58:37 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

hcentreprenoeren.dk is a .dk domain served by 2 nameservers (barbara.ns.cloudflare.com, justin.ns.cloudflare.com). It was registered on 19 January 2007 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.18.9 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1.onlinemail.io, mx2.onlinemail.io. The zone is not DNSSEC-signed, has no 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 32ms

Nameserver	IP addresses	PTR	ASN / ISP
barbara.ns.cloudflare.com	108.162.192.248 172.64.32.248 173.245.58.248 2606:4700:50::adf5:3af8 2803:f800:50::6ca2:c0f8 2a06:98c1:50::ac40:20f8	barbara.ns.cloudflare.com barbara.ns.cloudflare.com barbara.ns.cloudflare.com barbara.ns.cloudflare.com barbara.ns.cloudflare.com barbara.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
justin.ns.cloudflare.com	108.162.193.187 172.64.33.187 173.245.59.187 2606:4700:58::adf5:3bbb 2803:f800:50::6ca2:c1bb 2a06:98c1:50::ac40:21bb	justin.ns.cloudflare.com justin.ns.cloudflare.com justin.ns.cloudflare.com justin.ns.cloudflare.com justin.ns.cloudflare.com justin.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 39ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.18.9	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.179.33	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

2 records 35ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx1.onlinemail.io	185.21.42.12	mx1.onlinemail.io	AS48854 team.blue Denmark A/S
20	300s	mx2.onlinemail.io	46.36.208.16	mx2.onlinemail.io	AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover-mf.onlinemail.io → 185.21.40.62

🔷 AAAA Records (IPv6)#

2 records 34ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::ac43:b321	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::6815:1209	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 40ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.18.9,172.67.179.33 ech=AEX+DQBBFwAgACAnbH4loQwFProZihBBJRZbE7pxAMHpXwT1guWl0lb9ewAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:b321,2606:4700:3035::6815:1209

📝 TXT Records#

2 records 194ms

TXT Record
v=spf1 a include:spf.curanet.dk ~all
v=spf1 a mx ~all

✉️ SPF#

⚠ Multiple SPF records — RFC 7208 §4.5 violation (receivers must treat this as permerror)

Policy	Record (hcentreprenoeren.dk)
~all (soft fail)	v=spf1 a include:spf.curanet.dk ~all
~all (soft fail)	v=spf1 a mx ~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 2026-10-22 22:17:27

www	104.21.18.9 172.67.179.33 2606:4700:3033::ac43:b321 2606:4700:3035::6815:1209 (AS13335) (address records, no CNAME)
www vs bare domain	Same network hcentreprenoeren.dk: 104.21.18.9 172.67.179.33 2606:4700:3033::ac43:b321 2606:4700:3035::6815:1209 (AS13335) www.hcentreprenoeren.dk: 104.21.18.9 172.67.179.33 2606:4700:3033::ac43:b321 2606:4700:3035::6815:1209 (AS13335)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 4/10 · policy: ~all

error 2 SPF records: receivers must treat that as a permanent error (RFC 7208 §4.5)

🔗 TLSA / DANE#

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

🔐 DNSSEC#

69ms

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	2411054079
Primary NS (MNAME)	barbara.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-21 12:43:30

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2007-01-19
Expires	2027-01-31 (96d)

🔗 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
hc-entreprenoeren.dk	Punktum dk A/S (direct)
hcbeton.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

32ms

39ms

35ms

AAAA

34ms

TXT

194ms

CAA

31ms

HTTPS

40ms

TLSA

61ms

SOA

0ms

MTA-STS

52ms

DNSSEC

69ms

SRV

208ms

Total

1166ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-22 22:17:27	605ms	2 NS 2 A 2 MX	🔓 Insecure
2026-10-11 19:37:40	709ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-30 07:37:12	706ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-27 20:30:25	2588ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-12 19:34:00	2866ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-03 07:58:37 shown	1166ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-24 01:23:24	1125ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-17 11:08:43	844ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-17 10:57:48	976ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-17 10:56:56	1416ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-17 10:54:03	1427ms	2 NS 2 A 2 MX	🔓 Insecure