dualstack.dk
📜 Historical scan 2026-06-17 04:55:20  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   29ms
NameserverIP addressesPTRASN / ISP
coleman.ns.cloudflare.com — — —
fay.ns.cloudflare.com — — —
🌍 A Records2 records   29ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.3.146 — — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.130.211 — — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —
📧 MX Records
📧
No MX records found
🔷 AAAA Records (IPv6)2 records   35ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3030::6815:392 — — AS13335 Cloudflare, Inc. 2606:4700:3000::/42 — —
2606:4700:3034::ac43:82d3 — — AS13335 Cloudflare, Inc. 2606:4700:3000::/42 — —
🔐 HTTPS Records1 records   28ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.3.146,172.67.130.211 ech=AEX+DQBBTgAgACBkv//ZxP4Vaum9fERkUVoG+f/WeY8RgzuorCx9S5g9PgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:392,2606:4700:3034::ac43:82d3
📝 TXT Records2 records   116ms
TXT Record
v=DMARC1; p=reject;
v=spf1 -all
✉️ SPF
PolicyRecord (dualstack.dk)
-all (hard fail) v=spf1 -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)
🔐 DNSSEC115ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA28ms
FieldValue
Serial2407017934
Primary NS (MNAME)coleman.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
29ms
A
29ms
MX
30ms
AAAA
35ms
TXT
116ms
CAA
31ms
HTTPS
28ms
TLSA
96ms
SOA
28ms
MTA-STS
35ms
DNSSEC
115ms
SRV
0ms
Total
446ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-09-01 03:29:21 1123ms 2 NS 2 A 0 MX 🔒 Secure View
2026-08-27 11:08:02 525ms 2 NS 2 A 0 MX 🔒 Secure View
2026-08-11 04:53:46 2848ms 2 NS 2 A 0 MX 🔒 Secure View
2026-08-04 00:40:39 1350ms 2 NS 2 A 0 MX 🔒 Secure View
2026-07-24 06:49:03 3542ms 2 NS 2 A 0 MX 🔒 Secure View
2026-07-16 02:39:26 1173ms 2 NS 2 A 0 MX 🔒 Secure View
2026-06-26 11:02:54 1018ms 2 NS 2 A 0 MX 🔒 Secure View
2026-06-25 18:22:14 819ms 2 NS 2 A 0 MX 🔒 Secure View
2026-06-25 15:14:19 911ms 2 NS 2 A 0 MX 🔒 Secure View
2026-06-17 04:55:20 446ms 2 NS 2 A 0 MX 🔒 Secure View
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