sluseholmen.dk

📜 Historical scan 2026-08-13 07:37:31  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sluseholmen.dk is a .dk domain served by 2 nameservers (fay.ns.cloudflare.com, weston.ns.cloudflare.com). It was registered on 11 January 2013 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.95.50 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1.onlinemail.io, mx2.onlinemail.io. 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   67ms
NameserverIP addressesPTRASN / ISP
fay.ns.cloudflare.com 108.162.192.115
172.64.32.115
173.245.58.115
2606:4700:50::adf5:3a73
2803:f800:50::6ca2:c073
2a06:98c1:50::ac40:2073		 fay.ns.cloudflare.com
fay.ns.cloudflare.com
fay.ns.cloudflare.com
fay.ns.cloudflare.com
fay.ns.cloudflare.com
fay.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
weston.ns.cloudflare.com 108.162.195.138
162.159.44.138
172.64.35.138
2606:4700:58::a29f:2c8a
2803:f800:50::6ca2:c38a
2a06:98c1:50::ac40:238a		 weston.ns.cloudflare.com
weston.ns.cloudflare.com
weston.ns.cloudflare.com
weston.ns.cloudflare.com
weston.ns.cloudflare.com
weston.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   2048ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.95.50 298s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.143.67 298s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

2 records   53ms
PriorityTTLMail ServerIP addressesPTRASN
10 299s mx1.onlinemail.io 185.21.42.12 mx1.onlinemail.io AS48854 team.blue Denmark A/S
20 299s mx2.onlinemail.io 46.36.208.16 mx2.onlinemail.io AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscover104.21.95.50
🔶 Autoconfig104.21.95.50

🔷 AAAA Records (IPv6)#

2 records   45ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3033::ac43:8f43 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3036::6815:5f32 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   58ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.95.50,172.67.143.67 ech=AEX+DQBBnwAgACBs/WDs/r+/kxV2sAjBXKF8NjOdRJ7nY7RHx7I9jwTONwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:8f43,2606:4700:3036::6815:5f32

📝 TXT Records#

2 records   216ms
TXT Record
facebook-domain-verification=iz1tvcuwoqv2x8q2kf5uvu1zv9d2jf
v=spf1 include:spf.onlinemail.io ?all

✉️ SPF#

PolicyRecord (sluseholmen.dk)
?all (neutral) v=spf1 include:spf.onlinemail.io ?all

📨 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 2026-10-11 21:01:31
www104.21.95.50 172.67.143.67 2606:4700:3033::ac43:8f43 2606:4700:3036::6815:5f32 (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: 3/10 · policy: ?all

  • warn "?all" is neutral: it gives receivers no guidance, much like having no SPF

🔗 TLSA / DANE#

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

🔐 DNSSEC#

97ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

0ms
FieldValue
Serial2412047337
Primary NS (MNAME)fay.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-11 21:27:05
FieldValue
RegistrarKey-Systems GmbH
Registered2013-01-11
Expires2027-01-31 (103d)

🔗 Same registrant#

18 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).

DomainRegistrar
balancebæredygtig.dkKey-Systems GmbH
bestilpension.dkKey-Systems GmbH
businesspark.dkKey-Systems GmbH
danica-netpension.dkKey-Systems GmbH
danica.dkKey-Systems GmbH
danicaejendomme.dkKey-Systems GmbH
danicanetpension.dkKey-Systems GmbH
danicapension.dkKey-Systems GmbH
danicasurvey.dkKey-Systems GmbH
digion.dkKey-Systems GmbH
erdahus.dkKey-Systems GmbH
flexpension.dkKey-Systems GmbH
goteborgalle5.dkKey-Systems GmbH
harbourhouse1.dkKey-Systems GmbH
lautrupsgade7.dkKey-Systems GmbH
nordbro.dkKey-Systems GmbH
sebpensiontildanica.dkKey-Systems GmbH
sebtildanica.dkKey-Systems GmbH
📋 WHOIS#

⏱️ Lookup Timing#

NS
67ms
A
2048ms
MX
53ms
AAAA
45ms
TXT
216ms
CAA
50ms
HTTPS
58ms
TLSA
87ms
SOA
0ms
MTA-STS
83ms
DNSSEC
97ms
SRV
95ms
Total
3067ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-11 21:01:31 2770ms 2 NS 2 A 2 MX 🔓 Insecure
2026-10-10 20:28:51 1761ms 2 NS 2 A 2 MX 🔓 Insecure
2026-10-10 20:14:42 1198ms 2 NS 2 A 2 MX 🔓 Insecure
2026-09-24 07:15:05 716ms 2 NS 2 A 2 MX 🔓 Insecure
2026-09-15 09:56:34 9992ms 2 NS 2 A 2 MX 🔓 Insecure
2026-08-29 15:09:29 631ms 2 NS 2 A 2 MX 🔓 Insecure
2026-08-25 14:37:13 639ms 2 NS 2 A 2 MX 🔓 Insecure
2026-08-22 15:29:55 17191ms 2 NS 2 A 2 MX 🔓 Insecure
2026-08-13 07:37:31 shown 3067ms 2 NS 2 A 2 MX 🔓 Insecure
2026-06-30 20:52:33 807ms 2 NS 2 A 2 MX 🔓 Insecure
2026-06-26 06:23:37 5716ms 2 NS 2 A 2 MX 🔓 Insecure
2026-06-24 14:08:12 1152ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-17 23:18:59 750ms 2 NS 2 A 2 MX 🔓 Insecure
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