tntbyg.dk
Last scanned: 2026-08-28 07:05:04  ·  1377ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   75ms
NameserverIP addressesPTRASN / ISP
ns01.one.com 195.206.121.10
2001:67c:28cc::10		 ns01.one.com
ns01.one.com		 AS197495 One.com A/S
AS197495 One.com A/S
ns02.one.com 185.10.11.10
2001:67c:3c0::10		 ns02.one.com
ns02.one.com		 AS51468 One.com A/S
AS51468 One.com A/S
🌍 A Records1 records   355ms
IPTTLPTRASNISP / OrgCIDRCountryCity
185.21.41.61 43200s web31.123hotel.dk AS48854 team.blue Denmark A/S 185.21.40.0/22 🇩🇰 Denmark —
📧 MX Records2 records   45ms
PriorityTTLMail ServerIP addressesPTRASN
10 43200s mail.tntbyg.dk 185.21.41.143 director1.mf.curanet.dk AS48854 team.blue Denmark A/S
100 43200s backup-mx.zitcom.dk 46.36.212.34
46.36.212.36
46.36.212.37
46.36.212.38
89.188.78.64
89.188.78.65
89.188.78.66
94.231.106.12		 node4.spamfilter.io
node8.spamfilter.io
node6.spamfilter.io
node7.spamfilter.io
node3.spamfilter.io
node9.spamfilter.io
node10.spamfilter.io
node2.spamfilter.io		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscovertntbyg.dk → 185.21.41.61
🔶 Autoconfigtntbyg.dk → 185.21.41.61
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   217ms
TXT Record
v=spf1 a include:spf.curanet.dk ~all
✉️ SPF
PolicyRecord (tntbyg.dk)
~all (soft fail) v=spf1 a include:spf.curanet.dk ~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
🔏 ACME Challenge
TypeNameValue
CNAME _acme-challenge.tntbyg.dk tntbyg.dk
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC155ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026032401
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
75ms
A
355ms
MX
45ms
AAAA
60ms
TXT
217ms
CAA
88ms
HTTPS
67ms
TLSA
79ms
SOA
0ms
MTA-STS
118ms
DNSSEC
155ms
SRV
353ms
Total
1377ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-28 07:05:04 1377ms 2 NS 1 A 2 MX 🔒 Secure View
2026-07-19 12:20:38 17327ms 2 NS 1 A 2 MX 🔒 Secure View
2026-06-25 07:53:25 790ms 2 NS 1 A 0 MX 🔒 Secure View
2026-06-18 07:29:14 873ms 2 NS 1 A 2 MX 🔒 Secure View
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