seierjensen.dk

📜 Historical scan 2026-08-10 16:43:42 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

seierjensen.dk is a .dk domain served by 2 nameservers (kim.ns.cloudflare.com, walt.ns.cloudflare.com). It was registered on 4 April 2003 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx4.spamfri.dk, mx2.spamfri.dk and 2 more. The zone is DNSSEC-signed and validates, publishes a 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 155ms

Nameserver	IP addresses	PTR	ASN / ISP
kim.ns.cloudflare.com	108.162.192.126 172.64.32.126 173.245.58.126 2606:4700:50::adf5:3a7e 2803:f800:50::6ca2:c07e 2a06:98c1:50::ac40:207e	kim.ns.cloudflare.com kim.ns.cloudflare.com kim.ns.cloudflare.com kim.ns.cloudflare.com kim.ns.cloudflare.com kim.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
walt.ns.cloudflare.com	108.162.193.148 172.64.33.148 173.245.59.148 2606:4700:58::adf5:3b94 2803:f800:50::6ca2:c194 2a06:98c1:50::ac40:2194	walt.ns.cloudflare.com walt.ns.cloudflare.com walt.ns.cloudflare.com walt.ns.cloudflare.com walt.ns.cloudflare.com walt.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

🌍

No A records found

📧 MX Records#

4 records 139ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx4.spamfri.dk	193.200.91.108 2001:67c:564:fffd::4001	mx4.spamfri.dk mx4.spamfri.dk	AS62121 Christian Ebsen ApS AS62121 Christian Ebsen ApS
20	300s	mx2.spamfri.dk	193.200.91.109 2001:67c:564:fffd::2001	mx2.spamfri.dk mx2.spamfri.dk	AS62121 Christian Ebsen ApS AS62121 Christian Ebsen ApS
30	300s	mx3.spamfri.dk	2a00:1b18:2:3:fe::2 62.69.152.43 62.69.152.43	mx3.spamfri.dk 43.34-46.152.69.62.in-addr.arpa mx3.spamfri.dk	AS47527 DLX A/S AS47527 DLX A/S AS47527 DLX A/S
40	300s	mx1.spamfri.dk	195.242.131.16 2001:67c:564:fffd::1001	mx1.spamfri.dk mx1.spamfri.dk	AS62121 Christian Ebsen ApS AS62121 Christian Ebsen ApS

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	172.67.148.40

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 257ms

TXT Record
v=spf1 +include:_spf.e-studio.dk -all

✉️ SPF#

Policy	Record (seierjensen.dk)
-all (hard fail)	v=spf1 +include:_spf.e-studio.dk -all

📨 DMARC#

Policy	Record (_dmarc.seierjensen.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 2026-10-23 22:06:14

www	Exists, no address
www vs bare domain	Neither resolves seierjensen.dk: no address www.seierjensen.dk: no address
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

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

4 records 70ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.spamfri.dk	DANE-EE · SPKI · SHA-256	884451547A03D0AC2F628D943839BAA6…
SMTP _25._tcp.mx2.spamfri.dk	DANE-EE · SPKI · SHA-256	6598C93F79B95376BB8099E9AC862167…
SMTP _25._tcp.mx3.spamfri.dk	DANE-EE · SPKI · SHA-256	BBFB0694919290E5BC9D6E2C6F47D846…
SMTP _25._tcp.mx4.spamfri.dk	DANE-EE · SPKI · SHA-256	4EE743A99328AEF5142706CA5FD3AD61…

🔐 DNSSEC#

173ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	resolution failed: ncache nxrrset

🏷️ SOA#

0ms

Field	Value
Serial	2411259310
Primary NS (MNAME)	kim.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-16 07:51:30

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2003-04-04
Expires	2027-04-30 (187d)

🔗 Same registrant#

3 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
kildal.dk	Punktum dk A/S (direct)
netmon.dk	Punktum dk A/S (direct)
seierkildal.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

155ms

117ms

139ms

AAAA

156ms

TXT

257ms

CAA

133ms

HTTPS

147ms

TLSA

70ms

SOA

0ms

MTA-STS

662ms

DNSSEC

173ms

SRV

220ms

Total

1788ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-23 22:06:14	675ms	2 NS 0 A 4 MX	🔒 Secure
2026-10-17 08:00:29	800ms	2 NS 0 A 4 MX	🔒 Secure
2026-10-16 07:34:14	1581ms	2 NS 0 A 4 MX	🔒 Secure
2026-10-15 06:37:33	2361ms	2 NS 0 A 4 MX	🔒 Secure
2026-10-07 22:03:50	569ms	2 NS 0 A 4 MX	🔒 Secure
2026-10-03 18:55:13	1657ms	2 NS 0 A 4 MX	🔒 Secure
2026-09-29 14:58:55	2953ms	2 NS 0 A 4 MX	🔒 Secure
2026-09-21 04:22:08	1332ms	2 NS 0 A 4 MX	🔒 Secure
2026-09-10 05:33:20	1835ms	2 NS 0 A 4 MX	🔒 Secure
2026-09-03 14:55:44	1181ms	2 NS 0 A 4 MX	🔒 Secure
2026-08-28 00:15:06	652ms	2 NS 0 A 4 MX	🔒 Secure
2026-08-10 16:43:42 shown	1788ms	2 NS 0 A 4 MX	🔒 Secure
2026-07-11 09:24:25	1389ms	2 NS 0 A 4 MX	🔒 Secure
2026-06-17 15:05:59	691ms	2 NS 0 A 4 MX	🔒 Secure