sluseholmen.dk

📜 Historical scan 2026-06-17 23:18:59  ·  ← 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   44ms

🌍 A Records#

2 records   51ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.95.50 — — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.143.67 — — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

2 records   43ms

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscover104.21.95.50
🔶 Autoconfig172.67.143.67

🔷 AAAA Records (IPv6)#

2 records   41ms

🔐 HTTPS Records#

1 records   42ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.95.50,172.67.143.67 ech=AEX+DQBB+gAgACDXo7/7SbY1FdAaP7bfge0cVMs2IPJyyK+rgWhh7CQ0awAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::ac43:8f43,2606:4700:3037::6815:5f32

📝 TXT Records#

2 records   204ms
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

🔎 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#

64ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

46ms
FieldValue
Serial2403142398
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 (101d)

🔗 Same registrant#

33 domains
📋 WHOIS#

⏱️ Lookup Timing#

NS
44ms
A
51ms
MX
43ms
AAAA
41ms
TXT
204ms
CAA
44ms
HTTPS
42ms
TLSA
58ms
SOA
46ms
MTA-STS
53ms
DNSSEC
64ms
SRV
103ms
Total
750ms

🕐 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 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 shown 750ms 2 NS 2 A 2 MX 🔓 Insecure
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