rer.dk
📜 Historical scan 2026-06-17 23:24:02  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   34ms
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   29ms
IPTTLPTRASNISP / OrgCIDRCountryCity
46.30.126.6 — — AS47527 DLX A/S 46.30.120.0/21 🇩🇰 Denmark Herning
📧 MX Records2 records   32ms
PriorityTTLMail ServerIP addressesPTRASN
10 — mail.relay.dk 78.47.207.148 static.148.207.47.78.clients.your-server.de AS24940 Hetzner Online GmbH
50 — backup.relay.dk 78.47.207.148 static.148.207.47.78.clients.your-server.de AS24940 Hetzner Online GmbH
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscoverrer.dk → 46.30.126.6
🔶 Autoconfigrer.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   2238ms
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 (rer.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
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC96ms
CheckResult
Validation Status⚠️ Bogus
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsbroken trust chain resolving 'rer.dk/A/IN': 127.0.0.1#53
🏷️ SOA27ms
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
34ms
A
29ms
MX
32ms
AAAA
37ms
TXT
2238ms
CAA
29ms
HTTPS
36ms
TLSA
373ms
SOA
27ms
MTA-STS
23ms
DNSSEC
96ms
SRV
285ms
Total
3055ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 17:21:33 884ms 2 NS 1 A 2 MX 🔓 Insecure View
2026-07-04 21:24:19 10146ms 2 NS 1 A 2 MX 🔓 Insecure View
2026-06-17 23:24:02 3055ms 2 NS 1 A 2 MX ⚠️ Bogus View
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