clavister.dk
Last scanned: 2026-07-27 03:40:04  ·  25471ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   74ms
NameserverIP addressesPTRASN / ISP
dns1.clavister.com 88.131.48.10 dns1.clavister.com AS1257 Tele2 SWIPnet
dns2.clavister.com 158.174.3.11 — AS8473 Bahnhof AB
dns3.clavister.com 54.217.242.248 ec2-54-217-242-248.eu-west-1.compute.amazonaws.com AS16509 Amazon.com, Inc.
dns4.clavister.com 91.134.227.12 ip12.ip-91-134-227.eu AS16276 OVH SAS
🌍 A Records1 records   72ms
IPTTLPTRASNISP / OrgCIDRCountryCity
88.131.48.13 1800s 13.0-25.48.131.88.in-addr.arpa
www.clavister.com		 AS1257 Tele2 SWIPnet 88.131.0.0/16 🇸🇪 Sweden Kista
📧 MX Records1 records   74ms
PriorityTTLMail ServerIP addressesPTRASN
0 43200s .  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 Records1 records   477ms
TXT Record
v=spf1 -all
✉️ SPF
PolicyRecord (clavister.dk)
-all (hard fail) v=spf1 -all
📨 DMARC
PolicyRecord (_dmarc.clavister.dk)
p=reject v=DMARC1; p=reject; rua=mailto:dmarc-adra@clavister.com; ruf=mailto:dmarc-fdra@clavister.com; fo=0:1:d:s; adkim=s; aspf=s; pct=100; rf=afrf; ri=86400; sp=reject
📬 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)
🔐 DNSSEC178ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA97ms
FieldValue
Serial2025081200
Primary NS (MNAME)dns1.clavister.com
Responsible (RNAME)registry@clavister.com
Refresh5000s
Retry300s
Expire1809600s
Minimum (neg-cache TTL)300s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
74ms
A
72ms
MX
74ms
AAAA
69ms
TXT
477ms
CAA
70ms
HTTPS
163ms
TLSA
57ms
SOA
97ms
MTA-STS
105ms
DNSSEC
178ms
SRV
212ms
Total
25471ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-07-27 03:40:04 25471ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-07-02 01:27:45 16598ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-16 21:11:22 4053ms 4 NS 1 A 0 MX 🔓 Insecure View
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