s-k-o.dk

📜 Historical scan 2026-06-18 06:42:47 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

s-k-o.dk is a .dk domain served by 2 nameservers (duke.ns.cloudflare.com, kiki.ns.cloudflare.com). It was registered on 9 September 2005 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.10.215 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1.pub.mailpod12-cph3.one.com, mx2.pub.mailpod12-cph3.one.com and 2 more. The zone is not DNSSEC-signed, 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 215ms

Nameserver	IP addresses	PTR	ASN / ISP
duke.ns.cloudflare.com	108.162.193.110 172.64.33.110 173.245.59.110 2606:4700:58::adf5:3b6e 2803:f800:50::6ca2:c16e 2a06:98c1:50::ac40:216e	duke.ns.cloudflare.com duke.ns.cloudflare.com duke.ns.cloudflare.com duke.ns.cloudflare.com duke.ns.cloudflare.com duke.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
kiki.ns.cloudflare.com	108.162.192.180 172.64.32.180 173.245.58.180 2606:4700:50::adf5:3ab4 2803:f800:50::6ca2:c0b4 2a06:98c1:50::ac40:20b4	kiki.ns.cloudflare.com kiki.ns.cloudflare.com kiki.ns.cloudflare.com kiki.ns.cloudflare.com kiki.ns.cloudflare.com kiki.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 208ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.10.215	—	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.164.138	—	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

4 records 210ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	mx1.pub.mailpod12-cph3.one.com	104.37.34.246	mx1.pub.mailpod12-cph3.one.com	AS51468 One.com A/S
10	—	mx2.pub.mailpod12-cph3.one.com	104.37.34.247	mx2.pub.mailpod12-cph3.one.com	AS51468 One.com A/S
10	—	mx3.pub.mailpod12-cph3.one.com	104.37.34.248	mx3.pub.mailpod12-cph3.one.com	AS51468 One.com A/S
10	—	mx4.pub.mailpod12-cph3.one.com	104.37.34.249	mx4.pub.mailpod12-cph3.one.com	AS51468 One.com A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.one.com → 46.30.212.104
🔶 Autoconfig	104.21.10.215

🔷 AAAA Records (IPv6)#

2 records 211ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::ac43:a48a	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:ad7	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 67ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.10.215,172.67.164.138 ech=AEX+DQBBvgAgACBJni85WGHe97uPSIHOOQhUxAzLI4MySMevNjtzivHyJwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:a48a,2606:4700:3037::6815:ad7

📝 TXT Records#

1 records 190ms

TXT Record
v=spf1 include:_custspf.one.com ~all

✉️ SPF#

Policy	Record (s-k-o.dk)
~all (soft fail)	v=spf1 include:_custspf.one.com ~all

📨 DMARC#

Policy	Record (_dmarc.s-k-o.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 2026-10-08 10:57:28

www	104.21.10.215 172.67.164.138 2606:4700:3033::ac43:a48a 2606:4700:3037::6815:ad7 (AS13335) (address records, no CNAME)
www vs bare domain	Same network s-k-o.dk: 104.21.10.215 172.67.164.138 2606:4700:3033::ac43:a48a 2606:4700:3037::6815:ad7 (AS13335) www.s-k-o.dk: 104.21.10.215 172.67.164.138 2606:4700:3033::ac43:a48a 2606:4700:3037::6815:ad7 (AS13335)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

4 records 62ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.pub.mailpod12-cph3.one.com	DANE-EE · SPKI · SHA-256	D91CB8AC124CB360F986182813BDF3FD…
SMTP _25._tcp.mx2.pub.mailpod12-cph3.one.com	DANE-EE · SPKI · SHA-256	D91CB8AC124CB360F986182813BDF3FD…
SMTP _25._tcp.mx3.pub.mailpod12-cph3.one.com	DANE-EE · SPKI · SHA-256	D91CB8AC124CB360F986182813BDF3FD…
SMTP _25._tcp.mx4.pub.mailpod12-cph3.one.com	DANE-EE · SPKI · SHA-256	D91CB8AC124CB360F986182813BDF3FD…

🔐 DNSSEC#

224ms

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

🏷️ SOA#

218ms

Field	Value
Serial	2402849218
Primary NS (MNAME)	duke.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 01:30:41

Field	Value
Registrar	ONE.COM A/S
Registered	2005-09-09
Expires	2027-09-30 (343d)

🔗 Same registrant#

0 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).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

215ms

208ms

210ms

AAAA

211ms

TXT

190ms

CAA

235ms

HTTPS

67ms

TLSA

62ms

SOA

218ms

MTA-STS

39ms

DNSSEC

224ms

SRV

207ms

Total

1086ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 10:57:28	918ms	2 NS 2 A 4 MX	🔓 Insecure
2026-08-26 11:46:12	1494ms	2 NS 2 A 4 MX	🔓 Insecure
2026-08-24 18:42:13	1039ms	2 NS 2 A 4 MX	🔓 Insecure
2026-08-23 18:02:22	3671ms	2 NS 2 A 4 MX	🔓 Insecure
2026-08-07 17:54:48	3197ms	2 NS 2 A 4 MX	🔓 Insecure
2026-06-26 20:59:28	930ms	2 NS 2 A 4 MX	🔓 Insecure
2026-06-23 04:19:18	1063ms	2 NS 2 A 4 MX	🔓 Insecure
2026-06-23 01:57:28	2783ms	2 NS 2 A 4 MX	🔓 Insecure
2026-06-22 15:45:19	1164ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-18 06:42:47 shown	1086ms	2 NS 2 A 4 MX	🔓 Insecure