icesys.dk
Last scanned: 2026-08-24 11:58:24  ·  6094ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers6 records   52ms
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 Records1 records   48ms
IPTTLPTRASNISP / OrgCIDRCountryCity
147.29.150.82 1800s www.skat.dk AS3292 TDC Holding A/S 147.29.150.0/23 🇩🇰 Denmark Copenhagen
📧 MX Records1 records   50ms
PriorityTTLMail ServerIP addressesPTRASN
0 1800s .  Null MX — domain accepts no email (RFC 7505)
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records2 records   311ms
TXT Record
SKAT
v=spf1 -all
✉️ SPF
PolicyRecord (icesys.dk)
-all (hard fail) v=spf1 -all
📨 DMARC
PolicyRecord (_dmarc.icesys.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)
🔐 DNSSEC133ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2025091856
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
52ms
A
48ms
MX
50ms
AAAA
48ms
TXT
311ms
CAA
41ms
HTTPS
41ms
TLSA
1711ms
SOA
0ms
MTA-STS
130ms
DNSSEC
133ms
SRV
859ms
Total
6094ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-24 11:58:24 6094ms 6 NS 1 A 1 MX 🔒 Secure View
2026-08-14 19:39:56 3097ms 6 NS 1 A 1 MX 🔒 Secure View
2026-08-12 12:16:00 2167ms 6 NS 1 A 1 MX 🔒 Secure View
2026-08-11 08:54:53 2492ms 6 NS 1 A 1 MX 🔒 Secure View
2026-08-04 19:19:00 5687ms 6 NS 1 A 1 MX 🔒 Secure View
2026-07-24 00:57:16 3579ms 6 NS 1 A 1 MX 🔒 Secure View
2026-07-21 03:04:20 1591ms 6 NS 1 A 1 MX 🔒 Secure View
2026-07-20 01:40:00 2532ms 6 NS 1 A 1 MX 🔒 Secure View
2026-07-10 02:17:18 783ms 6 NS 1 A 1 MX 🔒 Secure View
2026-07-01 20:50:27 2227ms 6 NS 1 A 1 MX 🔒 Secure View
2026-06-27 06:26:33 1203ms 6 NS 1 A 1 MX 🔒 Secure View
2026-06-21 09:51:20 479ms 6 NS 1 A 1 MX ⚠️ Bogus View
2026-06-17 14:29:09 19881ms 6 NS 1 A 0 MX 🔒 Secure View
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