mysdu.dk
Last scanned: 2026-09-01 06:59:33  ·  16681ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   103ms
NameserverIP addressesPTRASN / ISP
ns1.sdu.dk 130.225.155.136 ns1.sdu.dk AS1835 IDDQD-AS
ns2.sdu.dk 130.225.155.148 ns2.sdu.dk AS1835 IDDQD-AS
ns3.sdu.dk 193.163.227.4 ns3.sdu.dk AS44328 Region Syddanmark
🌍 A Records1 records   104ms
IPTTLPTRASNISP / OrgCIDRCountryCity
130.225.156.23 28800s — AS1835 IDDQD-AS 130.225.0.0/16 🇩🇰 Denmark —
📧 MX Records1 records   105ms
PriorityTTLMail ServerIP addressesPTRASN
0 28800s .  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   273ms
TXT Record
v=spf1 -all
✉️ SPF
PolicyRecord (mysdu.dk)
-all (hard fail) v=spf1 -all
📨 DMARC
PolicyRecord (_dmarc.mysdu.dk)
p=reject v=DMARC1; p=reject; sp=reject; rua=mailto:655b353a1f136@dmarc.centerasecurity.com; ruf=mailto:dmarc.reports@sdu.dk
📬 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)
🔐 DNSSEC232ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial18703
Primary NS (MNAME)ns1.sdu.dk
Responsible (RNAME)dns@sdu.dk
Refresh10800s
Retry1080s
Expire2419200s
Minimum (neg-cache TTL)900s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
103ms
A
104ms
MX
105ms
AAAA
88ms
TXT
273ms
CAA
103ms
HTTPS
16087ms
TLSA
72ms
SOA
0ms
MTA-STS
176ms
DNSSEC
232ms
SRV
150ms
Total
16681ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-09-01 06:59:33 16681ms 3 NS 1 A 1 MX 🔒 Secure View
2026-08-30 12:48:52 17380ms 3 NS 1 A 1 MX 🔒 Secure View
2026-08-25 13:01:41 17329ms 3 NS 1 A 1 MX 🔒 Secure View
2026-08-24 12:51:43 6739ms 3 NS 1 A 1 MX 🔒 Secure View
2026-08-22 10:05:42 6299ms 3 NS 1 A 1 MX 🔒 Secure View
2026-08-18 08:07:28 8513ms 3 NS 1 A 1 MX 🔒 Secure View
2026-08-16 19:05:59 4468ms 3 NS 1 A 1 MX 🔒 Secure View
2026-08-14 09:14:40 4450ms 3 NS 1 A 1 MX 🔒 Secure View
2026-08-10 16:56:39 4538ms 3 NS 1 A 1 MX 🔒 Secure View
2026-08-06 02:47:30 4500ms 3 NS 1 A 1 MX 🔒 Secure View
2026-07-31 23:09:40 4450ms 3 NS 1 A 1 MX 🔒 Secure View
2026-07-27 21:33:01 4496ms 3 NS 1 A 1 MX 🔒 Secure View
2026-07-24 19:43:36 3443ms 3 NS 1 A 1 MX 🔒 Secure View
2026-07-23 18:11:07 16546ms 3 NS 1 A 1 MX 🔒 Secure View
2026-07-22 17:30:20 6675ms 3 NS 1 A 1 MX 🔒 Secure View
2026-07-20 17:23:06 3514ms 3 NS 1 A 1 MX 🔒 Secure View
2026-07-17 08:47:37 16636ms 3 NS 1 A 1 MX 🔒 Secure View
2026-07-13 18:47:58 8479ms 3 NS 1 A 1 MX 🔒 Secure View
2026-07-11 18:12:46 7957ms 3 NS 1 A 1 MX 🔒 Secure View
2026-07-08 16:25:54 3460ms 3 NS 1 A 1 MX 🔒 Secure View
2026-07-03 12:50:16 4463ms 3 NS 1 A 1 MX 🔒 Secure View
2026-06-30 21:32:27 4456ms 3 NS 1 A 1 MX 🔒 Secure View
2026-06-23 16:08:58 2429ms 3 NS 1 A 1 MX 🔒 Secure View
2026-06-22 17:07:24 1071ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-20 12:33:35 6007ms 3 NS 1 A 1 MX 🔒 Secure View
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