dtb.dk

📜 Historical scan 2026-09-24 23:56:41  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now

dtb.dk is a .dk domain served by 2 nameservers (ns.cvt.dk, ns2.cvt.dk). Its website address 192.38.67.25 is hosted by IDDQD-AS (AS1835) in Denmark. Mail is handled by mail.cvt.dk, mx.cvt.dk. 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   42ms
NameserverIP addressesPTRASN / ISP
ns.cvt.dk 192.38.67.2 ns.cvt.dk AS1835 IDDQD-AS
ns2.cvt.dk 192.38.67.3 ns2.cvt.dk AS1835 IDDQD-AS

🌍 A Records

1 records   38ms
IPTTLPTRASNISP / OrgCIDRCountryCity
192.38.67.25 86400s web.cvt.dk AS1835 IDDQD-AS 192.38.0.0/17 🇩🇰 Denmark Kongens Lyngby

📧 MX Records

2 records   31ms
PriorityTTLMail ServerIP addressesPTRASN
10 86400s mail.cvt.dk 192.38.67.24 rogeth.cvt.dk AS1835 IDDQD-AS
100 86400s mx.cvt.dk 192.38.67.3 ns2.cvt.dk AS1835 IDDQD-AS

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records

1 records   484ms
TXT Record
v=spf1 mx ~all

✉️ SPF

PolicyRecord (dtb.dk)
~all (soft fail) v=spf1 mx ~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

🔎 SPF check

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE

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

🔐 DNSSEC

116ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA

0ms
FieldValue
Serial2021090303
Primary NS (MNAME)ns.cvt.dk
Responsible (RNAME)sysop@cvt.dk
Refresh28800s
Retry7200s
Expire604800s
Minimum (neg-cache TTL)86400s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS

⏱️ Lookup Timing

NS
42ms
A
38ms
MX
31ms
AAAA
38ms
TXT
484ms
CAA
33ms
HTTPS
32ms
TLSA
312ms
SOA
0ms
MTA-STS
112ms
DNSSEC
116ms
SRV
184ms
Total
1407ms

🕐 Scan History

Scanned AtDurationRecordsDNSSEC
2026-09-28 23:36:14 1356ms 2 NS 1 A 2 MX 🔓 Insecure
2026-09-27 23:12:57 911ms 2 NS 1 A 2 MX 🔓 Insecure
2026-09-26 22:53:04 1328ms 2 NS 1 A 2 MX 🔓 Insecure
2026-09-25 22:35:06 1066ms 2 NS 1 A 2 MX 🔓 Insecure
2026-09-24 23:56:41 shown 1407ms 2 NS 1 A 2 MX 🔓 Insecure
2026-09-16 02:24:55 1642ms 2 NS 1 A 2 MX 🔓 Insecure
2026-06-25 16:48:24 607ms 2 NS 1 A 4 MX 🔒 Secure
2026-06-21 15:10:00 1210ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-17 04:50:42 581ms 2 NS 1 A 4 MX 🔒 Secure
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