b4ch.dk
Last scanned: 2026-08-27 18:38:44  ·  626ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   65ms
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   68ms
IPTTLPTRASNISP / OrgCIDRCountryCity
89.23.254.56 3600s 89-23-254-56.ip4.fiberby.net AS42541 Fiberby ApS 89.23.224.0/19 🇩🇰 Denmark Copenhagen
📧 MX Records
📧
No MX records found
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover89.23.254.56
🔶 Autoconfig89.23.254.56
🔷 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
✗ 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
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC108ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026080101
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
65ms
A
68ms
MX
65ms
AAAA
78ms
TXT
213ms
CAA
44ms
HTTPS
74ms
TLSA
111ms
SOA
0ms
MTA-STS
80ms
DNSSEC
108ms
SRV
90ms
Total
626ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 18:38:44 626ms 2 NS 1 A 0 MX 🔒 Secure View
2026-08-25 12:36:15 806ms 2 NS 1 A 0 MX 🔒 Secure View
2026-08-06 03:56:28 1098ms 2 NS 1 A 0 MX 🔒 Secure View
2026-07-19 05:55:56 4852ms 2 NS 1 A 0 MX 🔒 Secure View
2026-07-01 12:59:36 505ms 2 NS 1 A 0 MX 🔒 Secure View
2026-06-23 21:49:59 458ms 2 NS 1 A 0 MX 🔒 Secure View
2026-06-22 15:50:51 1066ms 2 NS 1 A 0 MX 🔒 Secure View
2026-06-16 13:57:36 442ms 2 NS 1 A 0 MX 🔒 Secure View
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