s-k-o.dk

📜 Historical scan 2026-06-23 04:19:18  ·  ← 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   35ms
NameserverIP addressesPTRASN / 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   45ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.10.215 600s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.164.138 600s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

4 records   38ms
PriorityTTLMail ServerIP addressesPTRASN
10 600s mx1.pub.mailpod12-cph3.one.com 104.37.34.246 mx1.pub.mailpod12-cph3.one.com AS51468 One.com A/S
10 600s mx2.pub.mailpod12-cph3.one.com 104.37.34.247 mx2.pub.mailpod12-cph3.one.com AS51468 One.com A/S
10 600s mx3.pub.mailpod12-cph3.one.com 104.37.34.248 mx3.pub.mailpod12-cph3.one.com AS51468 One.com A/S
10 600s mx4.pub.mailpod12-cph3.one.com 104.37.34.249 mx4.pub.mailpod12-cph3.one.com AS51468 One.com A/S

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscoverautodiscover.one.com → 46.30.212.104
🔶 Autoconfig172.67.164.138

🔷 AAAA Records (IPv6)#

2 records   34ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3033::ac43:a48a 600s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3037::6815:ad7 600s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   43ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.10.215,172.67.164.138 ech=AEX+DQBB5gAgACDOo2ThsPdB/TtRNbutgbSJoIFodJCQ6CC63aeZpadNOwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:a48a,2606:4700:3037::6815:ad7

📝 TXT Records#

1 records   173ms
TXT Record
v=spf1 include:_custspf.one.com ~all

✉️ SPF#

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

📨 DMARC#

PolicyRecord (_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
www104.21.10.215 172.67.164.138 2606:4700:3033::ac43:a48a 2606:4700:3037::6815:ad7 (AS13335) (address records, no CNAME)
www vs bare domainSame network
WildcardYes: 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   59ms
Service / OwnerTypeCert 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#

78ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

42ms
FieldValue
Serial2402849218
Primary NS (MNAME)duke.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-13 01:30:41
FieldValue
RegistrarONE.COM A/S
Registered2005-09-09
Expires2027-09-30 (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#

NS
35ms
A
45ms
MX
38ms
AAAA
34ms
TXT
173ms
CAA
38ms
HTTPS
43ms
TLSA
59ms
SOA
42ms
MTA-STS
61ms
DNSSEC
78ms
SRV
70ms
Total
1063ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
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 shown 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 1086ms 2 NS 2 A 4 MX 🔓 Insecure
dhd.dk [/] search Domains, Hosts & DNS — .dk zone