slkholding.dk
Last scanned: 2026-08-31 20:40:48  ·  920ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   40ms
NameserverIP addressesPTRASN / ISP
ns1.dns-sec.dk 92.241.203.106 ns1.dns-sec.dk AS3342 Cibicom A/S
ns2.dns-sec.dk 92.241.203.107 ns2.dns-sec.dk AS3342 Cibicom A/S
🌍 A Records
🌍
No A records found
📧 MX Records1 records   43ms
PriorityTTLMail ServerIP addressesPTRASN
0 3600s slkholding-dk.mail.protection.outlook.com 2a01:111:f403:ca04::b
2a01:111:f403:ca04::c
2a01:111:f403:ca04::f
2a01:111:f403:ca09::28
52.101.209.153
52.101.68.39
52.101.73.15
52.101.73.26		 mail-dbbpr03cu00103.inbound.protection.outlook.com
mail-db9pr02cu00204.inbound.protection.outlook.com
mail-db7pr03cu00507.inbound.protection.outlook.com
mail-am6pr02cu00300.inbound.protection.outlook.com
mail-cpjpr04cu00101.inbound.protection.outlook.com
mail-db7pr03cu00607.inbound.protection.outlook.com
mail-am9pr04cu00107.inbound.protection.outlook.com
mail-as9pr05cu01302.inbound.protection.outlook.com		 AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscoverautodiscover.outlook.com → 40.104.116.56
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   170ms
TXT Record
v=spf1 include:_spf.rntech.dk include:spf.protection.outlook.com -all
✉️ SPF
PolicyRecord (slkholding.dk)
-all (hard fail) v=spf1 include:_spf.rntech.dk include:spf.protection.outlook.com -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
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC83ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsresolution failed: ncache nxrrset
🏷️ SOA0ms
FieldValue
Serial2025020810
Primary NS (MNAME)ns1.dns-sec.dk
Responsible (RNAME)admin@dns-sec.dk
Refresh900s
Retry1200s
Expire1209600s
Minimum (neg-cache TTL)3600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
40ms
A
43ms
MX
43ms
AAAA
39ms
TXT
170ms
CAA
57ms
HTTPS
57ms
TLSA
413ms
SOA
0ms
MTA-STS
56ms
DNSSEC
83ms
SRV
61ms
Total
920ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-31 20:40:48 920ms 2 NS 0 A 1 MX 🔓 Insecure View
2026-07-02 19:35:49 1864ms 2 NS 0 A 1 MX 🔓 Insecure View
2026-06-18 19:08:16 8817ms 2 NS 0 A 1 MX 🔓 Insecure View
2026-06-17 11:52:51 788ms 2 NS 0 A 1 MX ⚠️ Bogus View
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