cebmo.dk
📜 Historical scan 2026-08-10 22:41:23  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   205ms
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   247ms
IPTTLPTRASNISP / OrgCIDRCountryCity
130.225.156.23 28800s — AS1835 IDDQD-AS 130.225.0.0/16 🇩🇰 Denmark —
📧 MX Records1 records   253ms
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   497ms
TXT Record
v=spf1 -all
✉️ SPF
PolicyRecord (cebmo.dk)
-all (hard fail) v=spf1 -all
📨 DMARC
PolicyRecord (_dmarc.cebmo.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)
🔐 DNSSEC360ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial11652
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
205ms
A
247ms
MX
253ms
AAAA
233ms
TXT
497ms
CAA
270ms
HTTPS
4231ms
TLSA
141ms
SOA
0ms
MTA-STS
311ms
DNSSEC
360ms
SRV
275ms
Total
5959ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-29 21:36:50 19118ms 3 NS 1 A 1 MX 🔒 Secure View
2026-08-26 12:26:18 16474ms 3 NS 1 A 1 MX 🔒 Secure View
2026-08-24 14:49:04 9698ms 3 NS 1 A 1 MX 🔒 Secure View
2026-08-17 23:48:17 8400ms 3 NS 1 A 1 MX 🔒 Secure View
2026-08-10 22:41:23 5959ms 3 NS 1 A 1 MX 🔒 Secure View
2026-08-05 03:04:49 5774ms 3 NS 1 A 1 MX 🔒 Secure View
2026-07-27 21:09:25 4440ms 3 NS 1 A 1 MX 🔒 Secure View
2026-07-24 19:11:31 16476ms 3 NS 1 A 1 MX 🔒 Secure View
2026-07-20 09:02:26 16455ms 3 NS 1 A 1 MX 🔒 Secure View
2026-07-16 13:24:54 4421ms 3 NS 1 A 1 MX 🔒 Secure View
2026-07-13 21:12:12 16455ms 3 NS 1 A 1 MX 🔒 Secure View
2026-07-08 20:51:10 16586ms 3 NS 1 A 1 MX 🔒 Secure View
2026-07-06 10:10:48 5068ms 3 NS 1 A 1 MX 🔒 Secure View
2026-07-01 22:23:52 4456ms 3 NS 1 A 1 MX 🔒 Secure View
2026-06-29 00:17:03 4462ms 3 NS 1 A 1 MX 🔒 Secure View
2026-06-25 22:46:05 4384ms 3 NS 1 A 1 MX 🔒 Secure View
2026-06-22 19:19:55 4529ms 3 NS 1 A 1 MX 🔒 Secure View
2026-06-19 02:44:17 5477ms 3 NS 1 A 1 MX 🔒 Secure View
2026-06-16 19:55:08 392ms 3 NS 1 A 0 MX 🔒 Secure View
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