w4b.dk
Last scanned: 2026-08-28 01:42:41  ·  702ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   39ms
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   37ms
IPTTLPTRASNISP / OrgCIDRCountryCity
212.54.91.37 600s — AS9158 Telenor A/S 212.54.64.0/19 🇩🇰 Denmark —
📧 MX Records1 records   45ms
PriorityTTLMail ServerIP addressesPTRASN
0 300s .  Null MX — domain accepts no email (RFC 7505)
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscovervalentine.jeppesens.com → 2.jeppesens.com.
🔶 Autoconfigvalentine.jeppesens.com → 2.jeppesens.com.
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records
📝
No TXT records found
✉️ SPF
✗ No SPF record — mail spoofing not restricted
📨 DMARC
PolicyRecord (_dmarc.w4b.dk)
p=reject v=DMARC1; p=reject; rua=mailto:postmaster@jeppesens.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
🔏 ACME Challenge
TypeNameValue
CNAME _acme-challenge.w4b.dk valentine.jeppesens.com
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC77ms
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
39ms
A
37ms
MX
45ms
AAAA
39ms
TXT
164ms
CAA
32ms
HTTPS
44ms
TLSA
85ms
SOA
0ms
MTA-STS
87ms
DNSSEC
77ms
SRV
87ms
Total
702ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-28 01:42:41 702ms 2 NS 1 A 1 MX 🔒 Secure View
2026-08-09 13:08:42 1555ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-13 17:44:03 6817ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-10 11:48:22 902ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-26 17:57:27 671ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-22 02:32:19 912ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-17 21:40:25 1002ms 2 NS 1 A 0 MX 🔒 Secure View
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