6z.dk

📜 Historical scan 2026-09-29 04:58:36 · ← 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 38ms

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 43ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.5.31	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.132.218	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

2 records 37ms

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

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	104.21.5.31
🔶 Autoconfig	104.21.5.31

🔷 AAAA Records (IPv6)#

2 records 30ms

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 33ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.5.31,172.67.132.218 ech=AEX+DQBBHgAgACBEFZRb1Q/KFaPjNIBqt4GH74yAXCyQ65yenvEIHvK8BQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:51f,2606:4700:3035::ac43:84da

📝 TXT Records#

3 records 171ms

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 42ms

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#

107ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2416084503
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#

38ms

43ms

37ms

AAAA

30ms

TXT

171ms

CAA

42ms

HTTPS

33ms

TLSA

209ms

SOA

0ms

MTA-STS

65ms

DNSSEC

107ms

SRV

62ms

Total

1266ms

🕐 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 shown	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	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