a-u.dk
Last scanned: 2026-08-28 00:46:43  ·  634ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   64ms
NameserverIP addressesPTRASN / ISP
ns1.dns.services 195.242.131.6
2001:67c:564:ffff::11		 ns1.dns.services
ns1.dns.services		 AS62121 Christian Ebsen ApS
AS62121 Christian Ebsen ApS
ns2.dns.services 2a00:1b18:2:3:3::2
62.69.152.37		 ns2.dns.services
ns2.dns.services		 AS47527 DLX A/S
AS47527 DLX A/S
ns3.dns.services 185.55.197.53 ns3.dns.services AS60153 Inpadi ApS
🌍 A Records1 records   65ms
IPTTLPTRASNISP / OrgCIDRCountryCity
94.231.97.209 3600s nginx1.relationhouse.dk AS48854 team.blue Denmark A/S 94.231.96.0/20 🇩🇰 Denmark —
📧 MX Records
📧
No MX records found
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   224ms
TXT Record
v=spf1 ip4:45.65.89.65 include:spf-esec.heimdalsecurity.com -all
✉️ SPF
PolicyRecord (a-u.dk)
-all (hard fail) v=spf1 ip4:45.65.89.65 include:spf-esec.heimdalsecurity.com -all
📨 DMARC
PolicyRecord (_dmarc.a-u.dk)
p=reject v=DMARC1; p=reject; rua=mailto:6082a74ca9e59@dmarc.centerasecurity.com;
📬 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)
🔐 DNSSEC147ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026082701
Primary NS (MNAME)ns1.dns.services
Responsible (RNAME)hostmaster@a-u.dk
Refresh10800s
Retry3600s
Expire604800s
Minimum (neg-cache TTL)3600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
64ms
A
65ms
MX
83ms
AAAA
99ms
TXT
224ms
CAA
64ms
HTTPS
85ms
TLSA
45ms
SOA
0ms
MTA-STS
159ms
DNSSEC
147ms
SRV
114ms
Total
634ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-28 00:46:43 634ms 3 NS 1 A 0 MX 🔒 Secure View
2026-08-27 22:14:50 337ms 3 NS 1 A 0 MX 🔒 Secure View
2026-08-20 12:40:26 5136ms 3 NS 1 A 0 MX 🔒 Secure View
2026-08-15 16:18:02 1360ms 3 NS 1 A 0 MX 🔒 Secure View
2026-08-10 14:28:09 8759ms 3 NS 1 A 0 MX 🔒 Secure View
2026-08-02 05:02:36 1624ms 3 NS 1 A 0 MX 🔒 Secure View
2026-07-24 00:03:23 925ms 3 NS 1 A 0 MX 🔒 Secure View
2026-07-17 13:32:18 718ms 3 NS 1 A 0 MX 🔒 Secure View
2026-07-10 16:58:10 798ms 3 NS 1 A 0 MX 🔒 Secure View
2026-07-03 15:32:07 492ms 3 NS 1 A 0 MX 🔒 Secure View
2026-06-25 05:09:45 746ms 3 NS 1 A 0 MX 🔒 Secure View
2026-06-18 09:31:15 877ms 3 NS 1 A 0 MX 🔒 Secure View
2026-06-16 13:15:06 414ms 3 NS 1 A 0 MX 🔒 Secure View
dhd.dk [/] search Domains, Hosts & DNS — .dk zone