21run.dk

📜 Historical scan 2026-06-16 12:43:45  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

21run.dk is a .dk domain served by 2 nameservers (ns1.whirlwind.nl, ns2.whirlwind.nl). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.17.9.85 is hosted by Previder B.V. (AS39591) in The Netherlands. Mail is handled by mail.21run.dk, fallback1.whirlwind.nl and 1 more. The zone is not DNSSEC-signed, has no DMARC policy and has no IPv6 address. 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
ns1.whirlwind.nl — — —
ns2.whirlwind.nl — — —

🌍 A Records#

1 records   71ms
IPTTLPTRASNISP / OrgCIDRCountryCity
46.17.9.85 — s2.whirlwind.nl AS39591 Previder B.V. 46.17.8.0/22 🇳🇱 The Netherlands —

📧 MX Records#

3 records   71ms
PriorityTTLMail ServerIP addressesPTRASN
10 — mail.21run.dk 46.17.9.85 s2.whirlwind.nl AS39591 Previder B.V.
20 — fallback1.whirlwind.nl 46.17.15.72 fallback1.whirlwind.nl AS60781 LeaseWeb Netherlands B.V.
30 — fallback2.whirlwind.nl 46.17.9.72 fallback2.whirlwind.nl AS39591 Previder B.V.

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 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 18:14:29
www46.17.9.85 (AS39591) (address records, no CNAME)
www vs bare domainSame network
21run.dk: 46.17.9.85 (AS39591)
www.21run.dk: 46.17.9.85 (AS39591)
WildcardNo

🔗 TLSA / DANE#

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

🔐 DNSSEC#

146ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

63ms
FieldValue
Serial2020111001
Primary NS (MNAME)ns1.whirlwind.nl
Responsible (RNAME)kristof@all4running.be
Refresh10800s
Retry3600s
Expire604800s
Minimum (neg-cache TTL)10800s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup
📋 WHOIS#

⏱️ Lookup Timing#

NS
67ms
A
71ms
MX
71ms
AAAA
61ms
TXT
220ms
CAA
68ms
HTTPS
68ms
TLSA
112ms
SOA
63ms
MTA-STS
149ms
DNSSEC
146ms
SRV
0ms
Total
914ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-09-25 14:59:53 1369ms 2 NS 1 A 3 MX 🔓 Insecure
2026-07-24 06:44:51 22193ms 2 NS 1 A 3 MX 🔓 Insecure
2026-07-02 01:23:37 1480ms 2 NS 1 A 3 MX 🔓 Insecure
2026-06-16 12:43:45 shown 914ms 2 NS 1 A 3 MX 🔓 Insecure
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