undefined.dk
📜 Historical scan 2026-06-17 13:26:46  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   2082ms
NameserverIP addressesPTRASN / ISP
ns1.simply.com 2a02:2339:1:15c::4562:4562
91.197.248.78		 ns1.simply.com
ns1.simply.com		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns2.simply.com 185.25.141.15
2a02:2339:4006:101::4562:4562		 ns2.simply.com
ns2.simply.com		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns3.simply.com 91.197.248.79 ns3.simply.com AS48854 team.blue Denmark A/S
ns4.simply.com 91.197.248.80 ns4.simply.com AS48854 team.blue Denmark A/S
🌍 A Records1 records   2071ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.19.208.28 — — AS13335 Cloudflare, Inc. 104.16.0.0/14 — —
📧 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   2249ms
TXT Record
v=spf1 include:spf.simply.com ~all
✉️ SPF
PolicyRecord (undefined.dk)
~all (soft fail) v=spf1 include:spf.simply.com ~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)
🔐 DNSSEC2110ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA2069ms
FieldValue
Serial2025042300
Primary NS (MNAME)ns1.simply.com
Responsible (RNAME)hostmaster@simply.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)3600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
2082ms
A
2071ms
MX
2054ms
AAAA
2061ms
TXT
2249ms
CAA
2061ms
HTTPS
2043ms
TLSA
177ms
SOA
2069ms
MTA-STS
250ms
DNSSEC
2110ms
SRV
0ms
Total
3687ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-28 09:51:37 1747ms 4 NS 1 A 0 MX 🔒 Secure View
2026-07-03 04:59:29 544ms 4 NS 1 A 0 MX 🔒 Secure View
2026-06-28 04:59:27 538ms 4 NS 1 A 0 MX 🔒 Secure View
2026-06-25 07:28:50 747ms 4 NS 1 A 0 MX 🔒 Secure View
2026-06-24 08:12:22 632ms 4 NS 1 A 0 MX ⚠️ Bogus View
2026-06-17 13:26:46 3687ms 4 NS 1 A 0 MX 🔒 Secure View
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