principia.dk
Last scanned: 2026-08-27 17:45:23  ·  1412ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   27ms
🌍 A Records2 records   24ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.10.19 300s AS13335 Cloudflare, Inc. 104.21.0.0/17
172.67.162.31 300s AS13335 Cloudflare, Inc. 172.67.128.0/17
📧 MX Records1 records   31ms
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover104.21.10.19
🔶 Autoconfig104.21.10.19
🔷 AAAA Records (IPv6)2 records   35ms
🔐 HTTPS Records1 records   26ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.10.19,172.67.162.31 ech=AEX+DQBBJQAgACBICK7h0rMIouc/HzScB0c6+6qlcejBgzELObuLPlL7NQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:a13,2606:4700:3033::ac43:a21f
🔌 SRV Records1 records   57ms
ServicePriorityWeightPortTarget
_sipfederationtls._tcp 100 1 5061 sipfed.online.lync.com
📝 TXT Records2 records   182ms
TXT Record
MS=ms51338895
v=spf1 include:_spf62510.spf-protect.dk -all
✉️ SPF
PolicyRecord (principia.dk)
-all (hard fail) v=spf1 include:_spf62510.spf-protect.dk -all
📨 DMARC
PolicyRecord (_dmarc.principia.dk)
p=reject v=DMARC1; p=reject; rua=mailto:6718fc5a06b4e@dmarc-dk.centerasecurity.com;
📬 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.principia.dk 6lnymlA7LQy6pXi1jzrk-MNJCFeRG-5-PPPPITeIiKU
TXT _acme-challenge.principia.dk MrzTMJDqP4_ripnUEVbL43D7sLdhHqbtbhWPJWWzG1w
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC104ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✓ Found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2413304162
Primary NS (MNAME)johnny.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
27ms
A
24ms
MX
31ms
AAAA
35ms
TXT
182ms
CAA
29ms
HTTPS
26ms
TLSA
780ms
SOA
0ms
MTA-STS
49ms
DNSSEC
104ms
SRV
57ms
Total
1412ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 17:45:23 1412ms 2 NS 2 A 1 MX 🔓 Insecure View
2026-08-22 16:13:49 2330ms 2 NS 2 A 1 MX 🔓 Insecure View
2026-08-18 07:55:30 5295ms 2 NS 2 A 1 MX 🔓 Insecure View
2026-08-06 18:15:29 2055ms 2 NS 2 A 1 MX 🔓 Insecure View
2026-07-20 03:10:17 1856ms 2 NS 2 A 1 MX 🔒 Secure View
2026-07-11 08:45:35 3650ms 2 NS 2 A 1 MX 🔒 Secure View
2026-06-22 21:11:54 2869ms 2 NS 2 A 1 MX 🔒 Secure View
2026-06-17 23:54:22 1135ms 2 NS 2 A 1 MX 🔒 Secure View
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