z7.dk

📜 Historical scan 2026-09-15 14:41:51 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

z7.dk is a .dk domain served by 2 nameservers (beth.ns.cloudflare.com, mark.ns.cloudflare.com). It was registered on 18 March 2014 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 209.250.245.213 is hosted by The Constant Company, LLC (AS20473) in The Netherlands. Mail is handled by mx1.z7.dk. 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 110ms

Nameserver	IP addresses	PTR	ASN / ISP
beth.ns.cloudflare.com	108.162.192.103 172.64.32.103 173.245.58.103 2606:4700:50::adf5:3a67 2803:f800:50::6ca2:c067 2a06:98c1:50::ac40:2067	beth.ns.cloudflare.com beth.ns.cloudflare.com beth.ns.cloudflare.com beth.ns.cloudflare.com beth.ns.cloudflare.com beth.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
mark.ns.cloudflare.com	108.162.193.130 172.64.33.130 173.245.59.130 2606:4700:58::adf5:3b82 2803:f800:50::6ca2:c182 2a06:98c1:50::ac40:2182	mark.ns.cloudflare.com mark.ns.cloudflare.com mark.ns.cloudflare.com mark.ns.cloudflare.com mark.ns.cloudflare.com mark.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

1 records 132ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
209.250.245.213	300s	mail-constant.z7.dk	AS20473	The Constant Company, LLC	209.250.224.0/19	🇳🇱 The Netherlands	Amsterdam

📧 MX Records#

1 records 91ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
5	300s	mx1.z7.dk	2001:19f0:5001:251e:5400:3ff:fecb:bbdf 209.250.245.213	mail-constant.z7.dk mail-constant.z7.dk	AS20473 The Constant Company, LLC AS20473 The Constant Company, LLC

🔷 AAAA Records (IPv6)#

1 records 143ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2001:19f0:5001:251e:5400:3ff:fecb:bbdf	300s	mail-constant.z7.dk	AS20473	The Constant Company, LLC	2001:19f0:5000:0:0:0:0:0/38	🇳🇱 The Netherlands	Amsterdam

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 267ms

TXT Record
google-site-verification=4ACupq6Fz6ODgGL_UaGIXiWBSnhcptZAq6_3idlA8Cs
v=spf1 mx -all

✉️ SPF#

Policy	Record (z7.dk)
-all (hard fail)	v=spf1 mx -all

📨 DMARC#

Policy	Record (_dmarc.z7.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc@z7.dk; ruf=mailto:dmarc@z7.dk;

📬 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 2026-10-14 08:00:50

www CNAME	z7.dk (all on z7.dk) → 209.250.245.213 2001:19f0:5001:251e:5400:3ff:fecb:bbdf (AS20473)
www vs bare domain	Same network z7.dk: 209.250.245.213 2001:19f0:5001:251e:5400:3ff:fecb:bbdf (AS20473) www.z7.dk: 209.250.245.213 2001:19f0:5001:251e:5400:3ff:fecb:bbdf (AS20473)
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

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.z7.dk	0erEB0efrlHgS5NVpwffQZ44HfUdXEZKyC6dgJxWDxU
TXT	_acme-challenge.z7.dk	DePL_YzKxNp5BtdWbcgai5YIFydYonWDp0hXsqZ_kPA
TXT	_acme-challenge.z7.dk	XoKzbx3jMxeeTtzgPlQZQZTjidjpZv6nai4csXp9c3w
TXT	_acme-challenge.z7.dk	eYBWUcMSLo38N64YjySvMWceSoW4UP91UybAE6JjbHY

🔗 TLSA / DANE#

2 records 1456ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.z7.dk	DANE-EE · SPKI · SHA-256	F9A185C80C938FA378F128BF5490470E…
SMTP _25._tcp.mx1.z7.dk	DANE-EE · SPKI · SHA-512	2276806096A697117B9565ED4FE6F459…

🔐 DNSSEC#

189ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2414859401
Primary NS (MNAME)	beth.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 23:37:47

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2014-03-18
Expires	2035-03-31 (3085d)

📋 WHOIS#

⏱️ Lookup Timing#

110ms

132ms

91ms

AAAA

143ms

TXT

267ms

CAA

134ms

HTTPS

126ms

TLSA

1456ms

SOA

0ms

MTA-STS

139ms

DNSSEC

189ms

SRV

140ms

Total

2747ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-14 08:00:50	2559ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-04 17:00:30	779ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 16:51:26	1346ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-26 06:28:36	852ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-24 06:08:48	882ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-15 14:41:51 shown	2747ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-01 12:15:05	3090ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-29 20:52:18	1555ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 10:24:42	2717ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 05:55:56	6571ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-07 14:39:39	10004ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-20 10:52:33	8957ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-10 12:04:11	3168ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-06 20:48:36	25244ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-28 16:43:01	964ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 13:31:48	3036ms	2 NS 1 A 1 MX	🔒 Secure