0s.dk

📜 Historical scan 2026-08-21 16:02:56 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

0s.dk is a .dk domain served by 2 nameservers (lewis.ns.cloudflare.com, maya.ns.cloudflare.com). It was registered on 29 June 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.23.5 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 5 more. The zone is not DNSSEC-signed, has no 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 76ms

Nameserver	IP addresses	PTR	ASN / ISP
lewis.ns.cloudflare.com	108.162.195.159 162.159.44.159 172.64.35.159 2606:4700:58::a29f:2c9f 2803:f800:50::6ca2:c39f 2a06:98c1:50::ac40:239f	lewis.ns.cloudflare.com lewis.ns.cloudflare.com lewis.ns.cloudflare.com lewis.ns.cloudflare.com lewis.ns.cloudflare.com lewis.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
maya.ns.cloudflare.com	108.162.192.194 172.64.32.194 173.245.58.194 2606:4700:50::adf5:3ac2 2803:f800:50::6ca2:c0c2 2a06:98c1:50::ac40:20c2	maya.ns.cloudflare.com maya.ns.cloudflare.com maya.ns.cloudflare.com maya.ns.cloudflare.com maya.ns.cloudflare.com maya.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 75ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.23.5	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.208.45	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

7 records 93ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	aspmx.l.google.com	172.253.148.27 2a00:1450:4025:4401::1b	yuskedq-in-f27.1e100.net yuskedq-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	300s	alt1.aspmx.l.google.com	192.178.158.27 2404:6800:4013:813::1b	lcdels-in-f27.1e100.net lcdels-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	300s	alt2.aspmx.l.google.com	142.251.127.27 2a00:1450:4010:c22::1a	lcfrai-in-f27.1e100.net yulpptr-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	300s	aspmx2.googlemail.com	192.178.213.26 2a00:1450:4013:c1e::1b	yugrqzs-in-f26.1e100.net yugrqzs-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	300s	aspmx3.googlemail.com	192.178.211.27 2404:6800:4000:1025::1a	lcbomp-in-f27.1e100.net lcbomp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	300s	aspmx4.googlemail.com	173.194.41.26 173.194.41.26 2404:6800:4001:c01::1a	mad01s14-in-f26.1e100.net yukulwh-in-f26.1e100.net yukulwh-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
30	300s	aspmx5.googlemail.com	173.194.41.26 173.194.41.26 2404:6800:4001:c01::1b	mad01s14-in-f26.1e100.net yukulwh-in-f26.1e100.net yukulwh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	104.21.23.5
🔶 Autoconfig	172.67.208.45

🔷 AAAA Records (IPv6)#

2 records 64ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::ac43:d02d	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::6815:1705	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 100ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.23.5,172.67.208.45 ech=AEX+DQBBTwAgACDG9MCGOkzsTijIgr+UD6/xJ/bySg+zEs2CM6qYbIl9BgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:d02d,2606:4700:3034::6815:1705

📝 TXT Records#

📝

No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 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 2026-10-08 07:09:11

www	104.21.23.5 172.67.208.45 2a06:98c1:3120::1 2a06:98c1:3121::1 (AS13335) (address records, no CNAME)
www vs bare domain	Same network 0s.dk: 104.21.23.5 172.67.208.45 2606:4700:3030::ac43:d02d 2606:4700:3034::6815:1705 (AS13335) www.0s.dk: 104.21.23.5 172.67.208.45 2a06:98c1:3120::1 2a06:98c1:3121::1 (AS13335)
Wildcard	Yes: any name under the zone resolves

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.0s.dk	Hu_C06h2t7wJFnaDUtIbuMV-F48S6dzz2yUSvyNqMeM
TXT	_acme-challenge.0s.dk	x6Xp6Th-rCPUYRRY9kf2TyuEG2mNtDQ26m9gEEhEEh4

🔗 TLSA / DANE#

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

🔐 DNSSEC#

182ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

0ms

Field	Value
Serial	2412788444
Primary NS (MNAME)	lewis.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 19:40:24

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2009-06-29
Expires	2027-06-30 (256d)

🔗 Same registrant#

17 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
0f.dk	Punktum dk A/S (direct)
0v.dk	Punktum dk A/S (direct)
6i.dk	Punktum dk A/S (direct)
bekraeft.dk	Punktum dk A/S (direct)
e9.dk	Punktum dk A/S (direct)
firmasupport.dk	Punktum dk A/S (direct)
jegersulten.dk	Punktum dk A/S (direct)
kunstblik.dk	Punktum dk A/S (direct)
monolisme.dk	Punktum dk A/S (direct)
monolith.dk	Punktum dk A/S (direct)
monologic.dk	Punktum dk A/S (direct)
monoment.dk	Punktum dk A/S (direct)
opgavemappen.dk	Punktum dk A/S (direct)
retrocollect.dk	Punktum dk A/S (direct)
saturn-cms.dk	Punktum dk A/S (direct)
udaftaagen.dk	Punktum dk A/S (direct)
webkampagne.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

76ms

75ms

93ms

AAAA

64ms

TXT

238ms

CAA

77ms

HTTPS

100ms

TLSA

215ms

SOA

0ms

MTA-STS

103ms

DNSSEC

182ms

SRV

123ms

Total

3832ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 01:21:56	746ms	2 NS 2 A 7 MX	🔓 Insecure
2026-09-24 10:52:06	9794ms	2 NS 2 A 7 MX	🔓 Insecure
2026-09-06 10:46:47	1514ms	2 NS 2 A 7 MX	🔓 Insecure
2026-08-26 13:57:08	9809ms	2 NS 2 A 7 MX	🔓 Insecure
2026-08-21 16:02:56 shown	3832ms	2 NS 2 A 7 MX	🔓 Insecure
2026-08-18 02:08:11	1632ms	2 NS 2 A 7 MX	🔓 Insecure
2026-08-16 11:28:51	10184ms	2 NS 2 A 7 MX	🔓 Insecure
2026-08-13 21:42:16	7729ms	2 NS 2 A 7 MX	🔓 Insecure
2026-07-09 02:00:14	2410ms	2 NS 2 A 7 MX	🔓 Insecure
2026-06-21 19:52:59	1768ms	2 NS 2 A 7 MX	🔓 Insecure
2026-06-16 12:33:41	1997ms	2 NS 2 A 7 MX	🔓 Insecure