isobel.dk
Last scanned: 2026-08-28 02:13:44  ·  682ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   41ms
NameserverIP addressesPTRASN / ISP
ns1.aau.dk 130.225.52.5
2001:878:300:1::5		 ns1.aau.dk
ns1.aau.dk		 AS1835 IDDQD-AS
AS1835 IDDQD-AS
ns2.aau.dk 130.225.54.5
2001:878:300:100::5		 ns2.aau.dk
ns2.aau.dk		 AS1835 IDDQD-AS
AS1835 IDDQD-AS
🌍 A Records1 records   43ms
IPTTLPTRASNISP / OrgCIDRCountryCity
130.225.57.55 3600s — AS1835 IDDQD-AS 130.225.0.0/16 🇩🇰 Denmark —
📧 MX Records1 records   50ms
PriorityTTLMail ServerIP addressesPTRASN
0 3600s .  Null MX — domain accepts no email (RFC 7505)
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   294ms
TXT Record
v=spf1 -all
✉️ SPF
PolicyRecord (isobel.dk)
-all (hard fail) v=spf1 -all
📨 DMARC
PolicyRecord (_dmarc.isobel.dk)
p=reject v=DMARC1; p=reject;
📬 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.isobel.dk 24ace6a9-f002-4c61-ae25-d2011787b508.acme.aau.dk
TXT 24ace6a9-f002-4c61-ae25-d2011787b508.acme.aau.dk 8zXDeb7dloR-XC32A-4mr33JJoDro0J0TyXTykYbcdM
TXT 24ace6a9-f002-4c61-ae25-d2011787b508.acme.aau.dk hbq1EriyRCow4SyQlwfS-JCtBwEHGPQzZdEMh0evLks
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC92ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2023062301
Primary NS (MNAME)ns1.aau.dk
Responsible (RNAME)hostmaster@its.aau.dk
Refresh3600s
Retry900s
Expire1209600s
Minimum (neg-cache TTL)86400s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
41ms
A
43ms
MX
50ms
AAAA
51ms
TXT
294ms
CAA
52ms
HTTPS
41ms
TLSA
54ms
SOA
0ms
MTA-STS
83ms
DNSSEC
92ms
SRV
73ms
Total
682ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-28 02:13:44 682ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-08-26 11:20:02 9387ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-07-02 09:40:19 700ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-06-18 00:25:34 4412ms 2 NS 1 A 0 MX 🔓 Insecure View
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