6z.dk

📜 Historical scan 2026-08-11 14:12:50 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

6z.dk is a .dk domain served by 2 nameservers (brett.ns.cloudflare.com, hera.ns.cloudflare.com). It was registered on 22 July 2014 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.5.31 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx01.mail.icloud.com, mx02.mail.icloud.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 54ms

Nameserver	IP addresses	PTR	ASN / ISP
brett.ns.cloudflare.com	108.162.193.76 172.64.33.76 173.245.59.76 2606:4700:58::adf5:3b4c 2803:f800:50::6ca2:c14c 2a06:98c1:50::ac40:214c	brett.ns.cloudflare.com brett.ns.cloudflare.com brett.ns.cloudflare.com brett.ns.cloudflare.com brett.ns.cloudflare.com brett.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
hera.ns.cloudflare.com	108.162.192.162 172.64.32.162 173.245.58.162 2606:4700:50::adf5:3aa2 2803:f800:50::6ca2:c0a2 2a06:98c1:50::ac40:20a2	hera.ns.cloudflare.com hera.ns.cloudflare.com hera.ns.cloudflare.com hera.ns.cloudflare.com hera.ns.cloudflare.com hera.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 2038ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.5.31	298s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.132.218	298s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

2 records 44ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx01.mail.icloud.com	17.42.251.62 17.42.251.62 17.42.251.62 17.56.9.31 17.56.9.31 17.57.152.5 17.57.152.5 17.57.152.5 17.57.152.5 17.57.154.33 17.57.154.33 17.57.155.25 17.57.155.25 17.57.156.30 17.57.156.30	mx01.mail.icloud.com mx02.mail.icloud.com mx3.mail.icloud.com mx01.mail.icloud.com mx02.mail.icloud.com mx01.mail.icloud.com ic4-privaterelay.appleid.com smtp1.ic4-privaterelay.appleid.com mx02.mail.icloud.com mx02.mail.icloud.com mx01.mail.icloud.com mx01.mail.icloud.com mx02.mail.icloud.com mx01.mail.icloud.com mx02.mail.icloud.com	AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc.
10	300s	mx02.mail.icloud.com	17.42.251.62 17.42.251.62 17.42.251.62 17.56.9.31 17.56.9.31 17.57.152.5 17.57.152.5 17.57.152.5 17.57.152.5 17.57.154.33 17.57.154.33 17.57.155.25 17.57.155.25 17.57.156.30 17.57.156.30	mx3.mail.icloud.com mx02.mail.icloud.com mx01.mail.icloud.com mx01.mail.icloud.com mx02.mail.icloud.com mx02.mail.icloud.com smtp1.ic4-privaterelay.appleid.com ic4-privaterelay.appleid.com mx01.mail.icloud.com mx02.mail.icloud.com mx01.mail.icloud.com mx01.mail.icloud.com mx02.mail.icloud.com mx01.mail.icloud.com mx02.mail.icloud.com	AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc.

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	172.67.132.218
🔶 Autoconfig	104.21.5.31

🔷 AAAA Records (IPv6)#

2 records 44ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3035::6815:51f	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::ac43:84da	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 46ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.5.31,172.67.132.218 ech=AEX+DQBBXgAgACC4ZPcMwYYc14W9GbrQ3gsLcmMz4oPVWZlCM4zELKcuDAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:51f,2606:4700:3035::ac43:84da

📝 TXT Records#

3 records 199ms

TXT Record
apple-domain=50Ds57FfnIeRkf9L
google-site-verification=NDneutJ16IkC4ZB21kxqs2SvHNub4IFg-G8cOxnZDfc
v=spf1 a:srv.6z.dk include:icloud.com ~all

✉️ SPF#

Policy	Record (6z.dk)
~all (soft fail)	v=spf1 a:srv.6z.dk include:icloud.com ~all

📨 DMARC#

Policy	Record (_dmarc.6z.dk)
p=reject	v=DMARC1; p=reject;

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

10 records 62ms

Flags	Tag	Value
0	issue	comodoca.com
0	issue	digicert.com; cansignhttpexchanges=yes
0	issue	letsencrypt.org
0	issue	pki.goog; cansignhttpexchanges=yes
0	issue	ssl.com
0	issuewild	comodoca.com
0	issuewild	digicert.com; cansignhttpexchanges=yes
0	issuewild	letsencrypt.org
0	issuewild	pki.goog; cansignhttpexchanges=yes
0	issuewild	ssl.com

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-09 11:40:32

www	104.21.5.31 172.67.132.218 2606:4700:3035::6815:51f 2606:4700:3035::ac43:84da (AS13335) (address records, no CNAME)
www vs bare domain	Same network 6z.dk: 104.21.5.31 172.67.132.218 2606:4700:3035::6815:51f 2606:4700:3035::ac43:84da (AS13335) www.6z.dk: 104.21.5.31 172.67.132.218 2606:4700:3035::6815:51f 2606:4700:3035::ac43:84da (AS13335)
Wildcard	Yes: any name under the zone resolves
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
default	—	RSA · ~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: 6/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

77ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2411866035
Primary NS (MNAME)	brett.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-06 04:54:35

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2014-07-22
Expires	2036-07-31 (3573d)

📋 WHOIS#

⏱️ Lookup Timing#

54ms

2038ms

44ms

AAAA

44ms

TXT

199ms

CAA

62ms

HTTPS

46ms

TLSA

88ms

SOA

0ms

MTA-STS

72ms

DNSSEC

77ms

SRV

75ms

Total

3632ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 11:40:32	1188ms	2 NS 2 A 2 MX	🔒 Secure
2026-10-08 10:27:10	2350ms	2 NS 2 A 2 MX	🔒 Secure
2026-09-29 04:58:36	1266ms	2 NS 2 A 2 MX	🔒 Secure
2026-09-24 02:52:27	2354ms	2 NS 2 A 2 MX	🔒 Secure
2026-09-15 02:26:58	1705ms	2 NS 2 A 2 MX	🔒 Secure
2026-09-03 00:09:59	1583ms	2 NS 2 A 2 MX	🔒 Secure
2026-08-26 19:16:53	892ms	2 NS 2 A 2 MX	🔒 Secure
2026-08-21 04:36:35	2856ms	2 NS 2 A 2 MX	🔒 Secure
2026-08-18 21:56:52	5231ms	2 NS 2 A 2 MX	🔒 Secure
2026-08-17 19:29:03	3807ms	2 NS 2 A 2 MX	🔒 Secure
2026-08-11 14:12:50 shown	3632ms	2 NS 2 A 2 MX	🔒 Secure
2026-08-05 20:05:20	1934ms	2 NS 2 A 2 MX	🔒 Secure
2026-07-28 02:21:43	9410ms	2 NS 2 A 2 MX	🔒 Secure
2026-07-22 17:41:25	1643ms	2 NS 2 A 2 MX	🔒 Secure
2026-07-19 06:01:05	10446ms	2 NS 2 A 2 MX	🔒 Secure
2026-07-04 18:49:29	7680ms	2 NS 2 A 2 MX	🔒 Secure
2026-06-24 19:49:26	982ms	2 NS 2 A 2 MX	🔒 Secure
2026-06-21 11:14:34	1717ms	2 NS 2 A 2 MX	🔒 Secure
2026-06-18 16:36:04	1784ms	2 NS 2 A 2 MX	🔒 Secure
2026-06-16 12:52:15	3467ms	2 NS 2 A 2 MX	🔒 Secure