arrowsikkerhetskurs.dk

📜 Historical scan 2026-08-14 06:16:01  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

arrowsikkerhetskurs.dk is a .dk domain served by 4 nameservers (pdns77.ultradns.biz, pdns77.ultradns.com, pdns77.ultradns.net and 1 more). It was registered on 30 October 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 52.234.0.82 is hosted by Microsoft Corporation (AS8075) in United States. Mail is handled by .. The zone is not DNSSEC-signed, publishes a 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#

4 records   49ms
NameserverIP addressesPTRASN / ISP
pdns77.ultradns.biz 156.154.66.77
2610:a1:1015::71		 pdns77.ultradns.biz
pdns77.ultradns.biz		 AS12008 Vercara, LLC
AS12008 Vercara, LLC
pdns77.ultradns.com 156.154.64.77
2001:502:f3ff::71		 pdns77.ultradns.com
pdns77.ultradns.com		 AS12008 Vercara, LLC
AS12008 Vercara, LLC
pdns77.ultradns.net 156.154.65.77
2610:a1:1014::71		 pdns77.ultradns.net
pdns77.ultradns.net		 AS12008 Vercara, LLC
AS12008 Vercara, LLC
pdns77.ultradns.org 156.154.67.77
2001:502:4612::71		 pdns77.ultradns.org
pdns77.ultradns.org		 AS12008 Vercara, LLC
AS12008 Vercara, LLC

🌍 A Records#

1 records   47ms
IPTTLPTRASNISP / OrgCIDRCountryCity
52.234.0.82 900s — AS8075 Microsoft Corporation 52.224.0.0/11 🇺🇸 United States San Jose

📧 MX Records#

1 records   44ms
PriorityTTLMail ServerIP addressesPTRASN
0 86400s .  Null MX — domain accepts no email (RFC 7505)

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records   261ms
TXT Record
v=spf1 -all

✉️ SPF#

PolicyRecord (arrowsikkerhetskurs.dk)
-all (hard fail) v=spf1 -all

📨 DMARC#

PolicyRecord (_dmarc.arrowsikkerhetskurs.dk)
p=reject v=DMARC1; p=reject; rua=mailto:rywdzx3h@ag.dmarcian.com

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

1 records   56ms
FlagsTagValue
0 issue ;

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-10 07:11:31
www CNAMEmrktg.arwdns.com (all on arwdns.com)
www vs bare domainSame network
arrowsikkerhetskurs.dk: 52.234.0.82 (AS8075)
www.arrowsikkerhetskurs.dk: 52.234.0.82 (AS8075)
WildcardNo

🔎 SPF check#

zone-wide SPF report

DNS lookups: 0/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

125ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

0ms
FieldValue
Serial2017093399
Primary NS (MNAME)pdns77.ultradns.com
Responsible (RNAME)domadmin@arrow.com
Refresh43200s
Retry7200s
Expire1209600s
Minimum (neg-cache TTL)86400s

📋 Registration#

WHOIS fetched 2026-10-16 21:25:22
FieldValue
RegistrarMarkMonitor Inc.
Registered2017-10-30
Expires2026-10-31 (14d)

🔗 Same registrant#

26 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
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inspirationdaydatacenter.dkCSC Digital Brand Service, Inc
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splar.dkCSC Digital Brand Service, Inc
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wyse.dkCSC Digital Brand Service, Inc
📋 WHOIS#

⏱️ Lookup Timing#

NS
49ms
A
47ms
MX
44ms
AAAA
57ms
TXT
261ms
CAA
56ms
HTTPS
59ms
TLSA
69ms
SOA
0ms
MTA-STS
72ms
DNSSEC
125ms
SRV
276ms
Total
997ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-10 07:11:31 538ms 4 NS 1 A 1 MX 🔓 Insecure
2026-10-02 15:48:54 751ms 4 NS 1 A 1 MX 🔓 Insecure
2026-09-30 15:28:27 566ms 4 NS 1 A 1 MX 🔓 Insecure
2026-09-25 10:27:52 648ms 4 NS 1 A 1 MX 🔓 Insecure
2026-09-24 10:25:02 2446ms 4 NS 1 A 1 MX 🔓 Insecure
2026-09-19 13:50:57 2909ms 4 NS 1 A 1 MX 🔓 Insecure
2026-09-13 13:45:01 844ms 4 NS 1 A 1 MX 🔓 Insecure
2026-09-06 00:39:24 595ms 4 NS 1 A 1 MX 🔓 Insecure
2026-08-27 11:29:17 581ms 4 NS 1 A 1 MX 🔓 Insecure
2026-08-26 11:07:27 750ms 4 NS 1 A 1 MX 🔓 Insecure
2026-08-25 20:22:40 688ms 4 NS 1 A 1 MX 🔓 Insecure
2026-08-22 15:40:06 1345ms 4 NS 1 A 1 MX 🔓 Insecure
2026-08-21 15:31:30 5437ms 4 NS 1 A 1 MX 🔓 Insecure
2026-08-20 15:26:59 24990ms 4 NS 1 A 1 MX ❓ Unknown
2026-08-18 03:52:44 996ms 4 NS 1 A 1 MX 🔓 Insecure
2026-08-16 13:32:27 2943ms 4 NS 1 A 1 MX 🔓 Insecure
2026-08-15 11:25:43 1054ms 4 NS 1 A 1 MX 🔓 Insecure
2026-08-14 06:16:01 shown 997ms 4 NS 1 A 1 MX 🔓 Insecure
2026-08-06 18:46:48 911ms 4 NS 1 A 1 MX 🔓 Insecure
2026-08-03 22:02:25 9702ms 4 NS 1 A 1 MX 🔓 Insecure
2026-07-29 20:27:56 1386ms 4 NS 1 A 1 MX 🔓 Insecure
2026-07-28 04:17:09 875ms 4 NS 1 A 1 MX 🔓 Insecure
2026-07-27 04:14:48 2661ms 4 NS 1 A 1 MX 🔓 Insecure
2026-07-26 03:52:06 3187ms 4 NS 1 A 1 MX 🔓 Insecure
2026-07-25 03:13:44 17202ms 4 NS 1 A 1 MX 🔓 Insecure
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