hovedopgave.dk
Last scanned: 2026-08-27 18:26:53  ·  919ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   32ms
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   35ms
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   42ms
PriorityTTLMail ServerIP addressesPTRASN
0 300s .  Null MX — domain accepts no email (RFC 7505)
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscoverhovedopgave.dk → 216.239.36.21
🔶 Autoconfighovedopgave.dk → 216.239.32.21
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   185ms
TXT Record
v=spf1 -all
✉️ SPF
PolicyRecord (hovedopgave.dk)
-all (hard fail) v=spf1 -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.hovedopgave.dk hovedopgave.dk
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC162ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026081301
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
32ms
A
35ms
MX
42ms
AAAA
45ms
TXT
185ms
CAA
47ms
HTTPS
44ms
TLSA
92ms
SOA
0ms
MTA-STS
59ms
DNSSEC
162ms
SRV
74ms
Total
919ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 18:26:53 919ms 2 NS 4 A 1 MX 🔒 Secure View
2026-08-27 02:01:28 1032ms 2 NS 4 A 1 MX 🔒 Secure View
2026-08-14 10:30:04 8917ms 2 NS 4 A 1 MX 🔒 Secure View
2026-07-17 10:52:42 929ms 2 NS 4 A 1 MX 🔒 Secure View
2026-07-03 19:57:34 668ms 2 NS 4 A 0 MX 🔒 Secure View
2026-07-03 09:45:58 1250ms 2 NS 4 A 1 MX 🔒 Secure View
2026-07-01 07:34:01 890ms 2 NS 4 A 1 MX 🔒 Secure View
2026-06-30 00:10:19 763ms 2 NS 4 A 1 MX 🔒 Secure View
2026-06-19 23:14:31 2533ms 2 NS 4 A 1 MX 🔒 Secure View
2026-06-18 13:43:48 733ms 2 NS 4 A 1 MX 🔒 Secure View
2026-06-17 13:49:11 266ms 0 NS 0 A 0 MX ❓ Unknown View
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