4o4.dk
Last scanned: 2026-08-26 22:35:05  ·  1052ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   51ms
NameserverIP addressesPTRASN / ISP
ns1.dlx.dk 2a00:1b18:1337:1337::53
46.30.121.210		 ns1.dlx.dk
ns1.dlx.dk		 AS47527 DLX A/S
AS47527 DLX A/S
ns2.dlx.dk 185.208.212.124
2a00:1b19:1337:1337::53		 ns2.dlx.dk
ns2.dlx.dk		 AS47527 DLX A/S
AS47527 DLX A/S
🌍 A Records1 records   51ms
IPTTLPTRASNISP / OrgCIDRCountryCity
46.30.126.6 3600s — AS47527 DLX A/S 46.30.120.0/21 🇩🇰 Denmark Herning
📧 MX Records2 records   35ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mail.relay.dk 78.47.207.148 static.148.207.47.78.clients.your-server.de AS24940 Hetzner Online GmbH
50 3600s backup.relay.dk 78.47.207.148 static.148.207.47.78.clients.your-server.de AS24940 Hetzner Online GmbH
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover4o4.dk → 46.30.126.6
🔶 Autoconfig4o4.dk → 46.30.126.6
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   168ms
TXT Record
v=spf1 mx ip4:78.47.207.144/29 ip4:46.30.121.118/32 ip4:46.30.121.122/32 a:mail.relay.dk include:_spf.google.com include:mailgun.org ~all
✉️ SPF
PolicyRecord (4o4.dk)
~all (soft fail) v=spf1 mx ip4:78.47.207.144/29 ip4:46.30.121.118/32 ip4:46.30.121.122/32 a:mail.relay.dk include:_spf.google.com include:mailgun.org ~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.4o4.dk 4o4.dk
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC125ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2016110202
Primary NS (MNAME)ns1.dlx.dk
Responsible (RNAME)ks@dlx.dk
Refresh10800s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)3600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
51ms
A
51ms
MX
35ms
AAAA
47ms
TXT
168ms
CAA
57ms
HTTPS
38ms
TLSA
378ms
SOA
0ms
MTA-STS
81ms
DNSSEC
125ms
SRV
63ms
Total
1052ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-26 22:35:05 1052ms 2 NS 1 A 2 MX 🔓 Insecure View
2026-07-02 00:49:38 887ms 2 NS 1 A 2 MX 🔓 Insecure View
2026-06-16 12:37:07 1108ms 2 NS 1 A 2 MX 🔓 Insecure View
dhd.dk [/] search Domains, Hosts & DNS — .dk zone