matematiker.dk
Last scanned: 2026-09-03 23:29:30  ·  585ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   47ms
NameserverIP addressesPTRASN / ISP
ns1.nordicway.dk 2a01:4f8:1c1a:a1e7::1
91.98.140.195		 —
static.195.140.98.91.clients.your-server.de		 AS24940 Hetzner Online GmbH
AS24940 Hetzner Online GmbH
ns2.nordicway.dk 2a01:4f8:c012:4db6::1
49.13.80.249		 —
static.249.80.13.49.clients.your-server.de		 AS24940 Hetzner Online GmbH
AS24940 Hetzner Online GmbH
ns3.nordicway.dk 2a01:4f8:c2c:d3c0::1
78.47.45.64		 ns3.nordicway.dk
ns3.nordicway.dk		 AS24940 Hetzner Online GmbH
AS24940 Hetzner Online GmbH
ns4.nordicway.dk 2a01:4f8:c010:24a2::1
78.47.56.84		 ns4.nordicway.dk
ns4.nordicway.dk		 AS24940 Hetzner Online GmbH
AS24940 Hetzner Online GmbH
🌍 A Records1 records   41ms
IPTTLPTRASNISP / OrgCIDRCountryCity
142.132.143.218 3600s cp13.nordicway.dk AS24940 Hetzner Online GmbH 142.132.128.0/17 🇩🇪 Germany Falkenstein
📧 MX Records1 records   48ms
PriorityTTLMail ServerIP addressesPTRASN
0 3600s mail.matematiker.dk 142.132.143.218 cp13.nordicway.dk AS24940 Hetzner Online GmbH
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   232ms
TXT Record
v=spf1 +a +mx +ip4:142.132.143.218 ~all
✉️ SPF
PolicyRecord (matematiker.dk)
~all (soft fail) v=spf1 +a +mx +ip4:142.132.143.218 ~all
📨 DMARC
PolicyRecord (_dmarc.matematiker.dk)
p=none (monitor only) v=DMARC1;p=none;sp=none;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=86400
📬 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
🔏 ACME Challenge
TypeNameValue
TXT _acme-challenge.matematiker.dk auPI5YO5YtCgHq0b2NMR14ULqzVWkYTUnGZyay5msoM
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC117ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2026083101
Primary NS (MNAME)ns1.nordicway.dk
Responsible (RNAME)server@nordicway.dk
Refresh3600s
Retry1800s
Expire1209600s
Minimum (neg-cache TTL)86400s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
47ms
A
41ms
MX
48ms
AAAA
41ms
TXT
232ms
CAA
39ms
HTTPS
44ms
TLSA
81ms
SOA
0ms
MTA-STS
67ms
DNSSEC
117ms
SRV
74ms
Total
585ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-09-03 23:29:30 585ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-08-25 10:27:14 2520ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-07-03 14:26:21 9770ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-21 12:34:12 718ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-21 06:06:36 828ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-18 00:34:03 857ms 4 NS 1 A 1 MX 🔓 Insecure View
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