clausfisker.dk
Last scanned: 2026-08-26 22:06:30  ·  936ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   65ms
NameserverIP addressesPTRASN / ISP
ns1.dotserv.com 178.20.218.61
2a01:7cc0:101:ffff::51		 ns1.dotserv.com
ns1.dotserv.com		 AS21060 Atea A/S
AS21060 Atea A/S
ns1.dotserv.net 178.20.217.29
2a01:7cc0:101:ffff::52		 ns1.dotserv.net
ns1.dotserv.net		 AS21060 Atea A/S
AS21060 Atea A/S
ns2.dotserv.com 193.180.214.21 ns2.dotserv.com AS44803 Webdock.io ApS
ns2.dotserv.net 162.19.249.51
2001:41d0:701:1100::c89e		 ns2.dotserv.net
ns2.dotserv.net		 AS16276 OVH SAS
AS16276 OVH SAS
🌍 A Records1 records   57ms
IPTTLPTRASNISP / OrgCIDRCountryCity
178.20.216.41 3600s ispc11.dotserv.com AS21060 Atea A/S 178.20.216.0/23 🇩🇰 Denmark —
📧 MX Records1 records   48ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s ispc11.dotserv.com 178.20.216.41 ispc11.dotserv.com AS21060 Atea A/S
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscovermail.clausfisker.dk → 178.20.216.41
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   213ms
TXT Record
v=spf1 include:_spf.dotserv.com -all
✉️ SPF
PolicyRecord (clausfisker.dk)
-all (hard fail) v=spf1 include:_spf.dotserv.com -all
📨 DMARC
PolicyRecord (_dmarc.clausfisker.dk)
p=reject v=DMARC1; p=reject;
📬 MTA-STS
✗ No MTA-STS policy — SMTP TLS not enforced
📈 TLSRPT
✗ No TLSRPT record — no SMTP TLS failure reporting
📜 CAA Records2 records   62ms
FlagsTagValue
0 issue comodoca.com
0 issue letsencrypt.org
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC98ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✓ Found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2015113000
Primary NS (MNAME)ns1.dotserv.com
Responsible (RNAME)hostmaster\@dotserv@com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)3600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
65ms
A
57ms
MX
48ms
AAAA
62ms
TXT
213ms
CAA
62ms
HTTPS
58ms
TLSA
383ms
SOA
0ms
MTA-STS
78ms
DNSSEC
98ms
SRV
76ms
Total
936ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-26 22:06:30 936ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-07-02 18:51:22 9681ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-26 15:16:53 1619ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-25 13:11:07 712ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-20 22:24:58 1151ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-16 21:10:54 755ms 4 NS 1 A 1 MX 🔓 Insecure View
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