sailer.dk
Last scanned: 2026-08-26 21:17:20  ·  9694ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   43ms
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   42ms
IPTTLPTRASNISP / OrgCIDRCountryCity
178.20.216.13 3600s ispc3.dotserv.com AS21060 Atea A/S 178.20.216.0/23 🇩🇰 Denmark —
📧 MX Records1 records   51ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s ispc3.dotserv.com 178.20.216.13 ispc3.dotserv.com AS21060 Atea A/S
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscovermail.sailer.dk → 178.20.216.13
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   263ms
TXT Record
v=spf1 include:_spf.dotserv.com -all
✉️ SPF
PolicyRecord (sailer.dk)
-all (hard fail) v=spf1 include:_spf.dotserv.com -all
📨 DMARC
PolicyRecord (_dmarc.sailer.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   43ms
FlagsTagValue
0 issue comodoca.com
0 issue letsencrypt.org
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC9130ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✓ Found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial1284628504
Primary NS (MNAME)ns1.dotserv.com
Responsible (RNAME)hostmaster@dotserv.com
Refresh14400s
Retry7200s
Expire1209600s
Minimum (neg-cache TTL)900s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
43ms
A
42ms
MX
51ms
AAAA
35ms
TXT
263ms
CAA
43ms
HTTPS
45ms
TLSA
219ms
SOA
0ms
MTA-STS
71ms
DNSSEC
9130ms
SRV
86ms
Total
9694ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-26 21:17:20 9694ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-28 02:05:30 810ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-27 03:16:50 1356ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-23 23:28:31 759ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-17 23:39:32 817ms 4 NS 1 A 1 MX 🔓 Insecure View
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