cboost.dk
📜 Historical scan 2026-06-30 18:54:48  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   66ms
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
ns2.dotserv.com		 AS21060 Atea A/S
AS21060 Atea A/S
ns2.dotserv.com 193.180.214.21 — 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   43ms
IPTTLPTRASNISP / OrgCIDRCountryCity
178.20.216.204 3600s sentido.dotserv.com AS21060 Atea A/S 178.20.216.0/23 🇩🇰 Denmark —
📧 MX Records1 records   85ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s sentido.dotserv.com 178.20.216.204 sentido.dotserv.com AS21060 Atea A/S
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscovermail.cboost.dk → 178.20.216.204
🔶 Autoconfig178.20.216.204
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   271ms
TXT Record
v=spf1 include:_spf.dotserv.com -all
✉️ SPF
PolicyRecord (cboost.dk)
-all (hard fail) v=spf1 include:_spf.dotserv.com -all
📨 DMARC
PolicyRecord (_dmarc.cboost.dk)
p=none (monitor only) v=DMARC1; p=none;
📬 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)
🔐 DNSSEC89ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✓ Found
Flagsunsigned answer
🏷️ SOA32ms
FieldValue
Serial1400411774
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
66ms
A
43ms
MX
85ms
AAAA
37ms
TXT
271ms
CAA
62ms
HTTPS
37ms
TLSA
103ms
SOA
32ms
MTA-STS
82ms
DNSSEC
89ms
SRV
117ms
Total
828ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-28 07:29:11 2518ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-08-25 15:38:43 720ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-30 18:54:48 828ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-27 19:43:59 2936ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-25 09:12:26 1518ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-21 03:16:40 2010ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-20 12:23:11 680ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-16 19:50:24 846ms 4 NS 1 A 1 MX 🔓 Insecure View
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