heinrichson.dk

📜 Historical scan 2026-06-21 11:11:19 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

heinrichson.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 27 August 2002 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 54.228.237.236 is hosted by Amazon.com, Inc. (AS16509) in Ireland. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 5 more. The zone is DNSSEC-signed and validates, 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 53ms

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 82ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
54.228.237.236	3600s	ec2-54-228-237-236.eu-west-1.compute.amazonaws.com	AS16509	Amazon.com, Inc.	54.228.0.0/14	🇮🇪 Ireland	Dublin

📧 MX Records#

7 records 71ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	43200s	aspmx.l.google.com	142.250.147.27 2a00:1450:4025:c01::1a	rd-in-f27.1e100.net rd-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	43200s	alt1.aspmx.l.google.com	142.250.147.26 2a00:1450:4025:c01::1a	rd-in-f26.1e100.net rd-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	43200s	alt2.aspmx.l.google.com	172.253.158.27 2404:6800:4003:c26::1b	so-in-f27.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx2.googlemail.com	172.253.152.27 2a00:1450:4010:c22::1a	yulpptr-in-f27.1e100.net yulpptr-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx3.googlemail.com	192.178.211.26 2404:6800:4000:1025::1b	lcbomp-in-f26.1e100.net lcbomp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx4.googlemail.com	108.177.125.27 2404:6800:4008:c01::1a	tp-in-f27.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx5.googlemail.com	108.177.125.27 2404:6800:4008:c01::1a	tp-in-f27.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 347ms

TXT Record
v=spf1 include:aspmx.googlemail.com -all

✉️ SPF#

Policy	Record (heinrichson.dk)
-all (hard fail)	v=spf1 include:aspmx.googlemail.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 2026-10-22 06:27:33

www CNAME	heinrichson.dk (all on heinrichson.dk) → 54.228.237.236 (AS16509)
www vs bare domain	Same network heinrichson.dk: 54.228.237.236 (AS16509) www.heinrichson.dk: 54.228.237.236 (AS16509)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

182ms

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

🏷️ SOA#

83ms

Field	Value
Serial	2026061901
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 2026-10-23 07:45:39

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2002-08-27
Expires	2027-09-30 (342d)

🔗 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
freon.dk	Punktum dk A/S (direct)
jobsnak.dk	DANDOMAIN A/S

📋 WHOIS#

⏱️ Lookup Timing#

53ms

82ms

71ms

AAAA

67ms

TXT

347ms

CAA

77ms

HTTPS

83ms

TLSA

266ms

SOA

83ms

MTA-STS

106ms

DNSSEC

182ms

SRV

159ms

Total

1388ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-22 06:27:33	1142ms	2 NS 1 A 7 MX	🔒 Secure
2026-09-25 14:23:07	9621ms	2 NS 1 A 7 MX	🔒 Secure
2026-09-24 14:24:40	1413ms	2 NS 1 A 7 MX	🔒 Secure
2026-09-05 01:54:15	841ms	2 NS 1 A 7 MX	🔒 Secure
2026-08-28 10:52:23	979ms	2 NS 1 A 7 MX	🔒 Secure
2026-08-20 10:06:26	3572ms	2 NS 1 A 7 MX	🔒 Secure
2026-07-23 01:57:41	5364ms	2 NS 1 A 7 MX	🔒 Secure
2026-07-21 19:29:13	3254ms	2 NS 1 A 7 MX	🔒 Secure
2026-07-12 20:04:51	7360ms	2 NS 1 A 7 MX	🔒 Secure
2026-06-21 11:11:19 shown	1388ms	2 NS 1 A 7 MX	🔒 Secure
2026-06-20 21:11:44	1090ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 00:26:46	672ms	2 NS 1 A 7 MX	🔒 Secure
2026-06-17 11:15:39	1186ms	2 NS 1 A 7 MX	🔒 Secure
2026-06-17 11:11:14	1162ms	2 NS 1 A 7 MX	🔒 Secure