principia.dk

📜 Historical scan 2026-08-06 18:15:29 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

principia.dk is a .dk domain served by 2 nameservers (johnny.ns.cloudflare.com, sima.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.10.19 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by principia-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 34ms

Nameserver	IP addresses	PTR	ASN / ISP
johnny.ns.cloudflare.com	108.162.195.186 162.159.44.186 172.64.35.186 2606:4700:58::a29f:2cba 2803:f800:50::6ca2:c3ba 2a06:98c1:50::ac40:23ba	johnny.ns.cloudflare.com johnny.ns.cloudflare.com johnny.ns.cloudflare.com johnny.ns.cloudflare.com johnny.ns.cloudflare.com johnny.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
sima.ns.cloudflare.com	108.162.192.222 172.64.32.222 173.245.58.222 2606:4700:50::adf5:3ade 2803:f800:50::6ca2:c0de 2a06:98c1:50::ac40:20de	sima.ns.cloudflare.com sima.ns.cloudflare.com sima.ns.cloudflare.com sima.ns.cloudflare.com sima.ns.cloudflare.com sima.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 58ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
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 Records#

1 records 41ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	principia-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca04::c 2a01:111:f403:ca09::20 2a01:111:f403:ca09::3 52.101.68.0 52.101.68.27 52.101.68.29 52.101.68.3	mail-db7pr03cu00401.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	104.21.10.19
🔶 Autoconfig	104.21.10.19

🔷 AAAA Records (IPv6)#

2 records 37ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::6815:a13	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::ac43:a21f	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 42ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.10.19,172.67.162.31 ech=AEX+DQBB5AAgACCQgG2R1zQuTd9HQQ7DmKpgymeU50p16mps8dgyfvj2FwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:a13,2606:4700:3033::ac43:a21f

🔌 SRV Records#

1 records 690ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

2 records 200ms

TXT Record
MS=ms51338895
v=spf1 include:_spf62510.spf-protect.dk -all

✉️ SPF#

Policy	Record (principia.dk)
-all (hard fail)	v=spf1 include:_spf62510.spf-protect.dk -all

📨 DMARC#

Policy	Record (_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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-15 10:41:08

www	104.21.10.19 172.67.162.31 2606:4700:3032::6815:a13 2606:4700:3033::ac43:a21f (AS13335) (address records, no CNAME)
www vs bare domain	Same network principia.dk: 104.21.10.19 172.67.162.31 2606:4700:3032::6815:a13 2606:4700:3033::ac43:a21f (AS13335) www.principia.dk: 104.21.10.19 172.67.162.31 2606:4700:3032::6815:a13 2606:4700:3033::ac43:a21f (AS13335)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	Delete signal: the zone asks the registry to remove its DS (go insecure) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-principia-dk._domainkey.hfchristiansen.onmicrosoft.com	RSA · ~1024 bit below 2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

82ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✓ Found
Flags	unsigned answer

🏷️ SOA#

0ms

Field	Value
Serial	2411230574
Primary NS (MNAME)	johnny.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

34ms

58ms

41ms

AAAA

37ms

TXT

200ms

CAA

37ms

HTTPS

42ms

TLSA

186ms

SOA

0ms

MTA-STS

56ms

DNSSEC

82ms

SRV

690ms

Total

2055ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-15 10:41:08	2853ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-21 21:51:30	1129ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-20 05:22:55	1440ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-07 22:24:40	1564ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-03 23:34:22	839ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-27 17:45:23	1412ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-22 16:13:49	2330ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-18 07:55:30	5295ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-06 18:15:29 shown	2055ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-20 03:10:17	1856ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-11 08:45:35	3650ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-22 21:11:54	2869ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-17 23:54:22	1135ms	2 NS 2 A 1 MX	🔒 Secure