jcnbyggeri.dk
Last scanned: 2026-08-26 09:17:48  ·  896ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   34ms
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   44ms
IPTTLPTRASNISP / OrgCIDRCountryCity
195.47.247.18 600s one.com.webforward.g1i.one AS51468 One.com A/S 195.47.247.0/24 — —
📧 MX Records1 records   39ms
PriorityTTLMail ServerIP addressesPTRASN
10 43200s mail.jcn-byggeri.dk 92.246.24.132 mail.jcn-byggeri.dk AS39642 Sinal A/S
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover195.47.247.18
🔶 Autoconfig195.47.247.18
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   176ms
TXT Record
v=spf1 -all
✉️ SPF
PolicyRecord (jcnbyggeri.dk)
-all (hard fail) v=spf1 -all
📨 DMARC
PolicyRecord (_dmarc.jcnbyggeri.dk)
p=reject v=DMARC1; p=reject; rua=mailto:6720990da2064@dmarc-dk.centerasecurity.com;
📬 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)
🔐 DNSSEC75ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026080901
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
34ms
A
44ms
MX
39ms
AAAA
34ms
TXT
176ms
CAA
49ms
HTTPS
52ms
TLSA
71ms
SOA
0ms
MTA-STS
71ms
DNSSEC
75ms
SRV
72ms
Total
896ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-26 09:17:48 896ms 2 NS 1 A 1 MX 🔒 Secure View
2026-08-10 19:35:09 1138ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-16 13:58:15 821ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-13 01:58:26 897ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-08 13:45:26 1035ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-30 08:43:21 670ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-25 20:11:32 1459ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-23 19:34:03 797ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-20 04:39:04 1190ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-19 19:57:47 530ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-17 19:08:31 572ms 2 NS 1 A 1 MX 🔒 Secure View
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