blackbyte.dk
Last scanned: 2026-08-28 08:48:08  ·  1192ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   44ms
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 Records4 records   45ms
IPTTLPTRASNISP / OrgCIDRCountryCity
216.239.32.21 43200s any-in-2015.1e100.net AS15169 Google LLC 216.239.32.0/20 🇺🇸 United States —
216.239.34.21 43200s any-in-2215.1e100.net AS15169 Google LLC 216.239.32.0/20 🇺🇸 United States —
216.239.36.21 43200s any-in-2415.1e100.net AS15169 Google LLC 216.239.32.0/20 🇺🇸 United States —
216.239.38.21 43200s any-in-2615.1e100.net AS15169 Google LLC 216.239.32.0/20 🇺🇸 United States —
📧 MX Records1 records   60ms
PriorityTTLMail ServerIP addressesPTRASN
10 43200s blackbyte.dk 216.239.32.21
216.239.34.21
216.239.36.21
216.239.38.21		 any-in-2015.1e100.net
any-in-2215.1e100.net
any-in-2415.1e100.net
any-in-2615.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
AS15169 Google LLC
AS15169 Google LLC
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscoverbaastrup.duckdns.org → 217.61.218.20
🔶 Autoconfigbaastrup.duckdns.org → 217.61.218.20
🔷 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
🔏 ACME Challenge
TypeNameValue
CNAME _acme-challenge.blackbyte.dk baastrup.duckdns.org
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC123ms
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
44ms
A
45ms
MX
60ms
AAAA
50ms
TXT
433ms
CAA
84ms
HTTPS
68ms
TLSA
155ms
SOA
0ms
MTA-STS
265ms
DNSSEC
123ms
SRV
272ms
Total
1192ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-28 08:48:08 1192ms 2 NS 4 A 1 MX 🔒 Secure View
2026-07-28 14:35:25 6916ms 2 NS 4 A 1 MX 🔒 Secure View
2026-06-30 21:39:25 972ms 2 NS 4 A 1 MX 🔒 Secure View
2026-06-26 21:14:20 1260ms 2 NS 4 A 1 MX 🔒 Secure View
2026-06-24 02:17:39 904ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-16 14:45:26 1158ms 2 NS 4 A 1 MX 🔒 Secure View
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