thomas-holdings.dk
Last scanned: 2026-06-28 21:50:05  ·  1042ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   47ms
NameserverIP addressesPTRASN / ISP
ns1.yoursrs.com 104.47.151.178
2603:1020:200::682f:a758		 ns1.yoursrs.com
—		 AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
ns2.yoursrs.com 20.79.93.42
2603:1020:c01:4::8		 ns2.yoursrs.com
—		 AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
🌍 A Records1 records   50ms
IPTTLPTRASNISP / OrgCIDRCountryCity
109.235.74.225 3600s ns1.yoursrs.com AS25151 Cyso Group B.V. 109.235.72.0/21 🇳🇱 The Netherlands —
📧 MX Records1 records   46ms
PriorityTTLMail ServerIP addressesPTRASN
0 3600s .  Null MX — domain accepts no email (RFC 7505)
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover109.235.74.225
🔶 Autoconfig109.235.74.225
🔷 AAAA Records (IPv6)1 records   66ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a01:518:1:41:2::53 3600s ns1.yoursrs.com AS25151 Cyso Group B.V. 2a01:518:0:0:0:0:0:0/32 🇳🇱 The Netherlands —
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   341ms
TXT Record
v=spf1 -all
✉️ SPF
PolicyRecord (thomas-holdings.dk)
-all (hard fail) v=spf1 -all
📨 DMARC
PolicyRecord (_dmarc.thomas-holdings.dk)
p=reject v=DMARC1; p=reject; aspf=s; adkim=s;
📬 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)
🔐 DNSSEC93ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA44ms
FieldValue
Serial2023050900
Primary NS (MNAME)ns1.yoursrs.com
Responsible (RNAME)hostmaster@thomas-holdings.dk
Refresh3600s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)3600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
47ms
A
50ms
MX
46ms
AAAA
66ms
TXT
341ms
CAA
45ms
HTTPS
81ms
TLSA
291ms
SOA
44ms
MTA-STS
88ms
DNSSEC
93ms
SRV
96ms
Total
1042ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-06-28 21:50:05 1042ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-06-27 02:36:20 801ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-06-22 13:19:45 1003ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-06-21 23:56:36 1120ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-18 05:42:48 1162ms 2 NS 1 A 0 MX 🔓 Insecure View
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