letlon.dk
📜 Historical scan 2026-06-17 11:42:48  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers6 records   35ms
NameserverIP addressesPTRASN / ISP
df-ns01.skat.dk 147.29.150.31 df-ns01.skat.dk AS3292 TDC Holding A/S
df-ns02.skat.dk 147.29.151.254 df-ns02.skat.dk AS3292 TDC Holding A/S
df-ns03.skat.dk 147.29.150.31 df-ns01.skat.dk AS3292 TDC Holding A/S
df-ns04.skat.dk 147.29.151.254 df-ns02.skat.dk AS3292 TDC Holding A/S
ns1-auth.csc.dk 147.29.236.25
2a01:5440:2:0:147:29:236:25		 ns1-auth.csc.dk
—		 AS29156 DXC Technology Danmark A/S
AS29156 DXC Technology Danmark A/S
ns2-auth.csc.dk 147.29.238.25
2a01:5440:2:2000:147:29:238:25		 ns2-auth.csc.dk
—		 AS29156 DXC Technology Danmark A/S
AS29156 DXC Technology Danmark A/S
🌍 A Records
🌍
No A records found
📧 MX Records1 records   36ms
PriorityTTLMail ServerIP addressesPTRASN
10 — mail.letlon.dk 193.162.204.201 — AS25384 Kyndryl Danmark ApS
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records2 records   237ms
TXT Record
SKAT
v=spf1 -all
✉️ SPF
PolicyRecord (letlon.dk)
-all (hard fail) v=spf1 -all
📨 DMARC
PolicyRecord (_dmarc.letlon.dk)
p=reject v=DMARC1; p=reject; rua=mailto:fd0c97ad@in.mailhardener.com; ruf=mailto:fd0c97ad@in.mailhardener.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)
🔐 DNSSEC103ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsresolution failed: ncache nxrrset
🏷️ SOA413ms
FieldValue
Serial2025091842
Primary NS (MNAME)df-ns01.skat.dk
Responsible (RNAME)hostmaster@csc.dk
Refresh14400s
Retry7200s
Expire1209600s
Minimum (neg-cache TTL)600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
35ms
A
38ms
MX
36ms
AAAA
35ms
TXT
237ms
CAA
50ms
HTTPS
34ms
TLSA
330ms
SOA
413ms
MTA-STS
128ms
DNSSEC
103ms
SRV
0ms
Total
1288ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-26 18:46:35 1517ms 6 NS 0 A 1 MX 🔒 Secure View
2026-08-25 01:45:39 608ms 6 NS 0 A 1 MX 🔒 Secure View
2026-08-24 02:01:47 3547ms 6 NS 0 A 1 MX 🔒 Secure View
2026-08-14 11:10:49 3610ms 6 NS 0 A 1 MX 🔒 Secure View
2026-08-12 21:05:15 795ms 6 NS 0 A 1 MX 🔒 Secure View
2026-08-03 23:48:56 1664ms 6 NS 0 A 1 MX 🔒 Secure View
2026-08-01 23:06:50 8745ms 6 NS 0 A 1 MX 🔒 Secure View
2026-07-22 21:04:42 10653ms 6 NS 0 A 1 MX 🔒 Secure View
2026-07-21 16:47:34 5399ms 6 NS 0 A 1 MX 🔒 Secure View
2026-07-15 01:07:16 858ms 6 NS 0 A 1 MX 🔒 Secure View
2026-07-10 06:50:33 16911ms 6 NS 0 A 1 MX 🔒 Secure View
2026-07-01 22:03:04 944ms 6 NS 0 A 1 MX 🔒 Secure View
2026-06-28 12:45:06 646ms 6 NS 0 A 1 MX 🔒 Secure View
2026-06-21 07:59:53 2242ms 6 NS 0 A 1 MX 🔒 Secure View
2026-06-17 11:42:48 1288ms 6 NS 0 A 1 MX 🔒 Secure View
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