kronborgtand.dk

📜 Historical scan 2026-09-24 14:30:45 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

kronborgtand.dk is a .dk domain served by 2 nameservers (conrad.ns.cloudflare.com, virginia.ns.cloudflare.com). It was registered on 19 February 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.15.226 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by kronborgtand.dk.mx.one.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 46ms

Nameserver	IP addresses	PTR	ASN / ISP
conrad.ns.cloudflare.com	108.162.195.146 162.159.44.146 172.64.35.146 2606:4700:58::a29f:2c92 2803:f800:50::6ca2:c392 2a06:98c1:50::ac40:2392	conrad.ns.cloudflare.com conrad.ns.cloudflare.com conrad.ns.cloudflare.com conrad.ns.cloudflare.com conrad.ns.cloudflare.com conrad.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
virginia.ns.cloudflare.com	108.162.194.37 162.159.38.37 172.64.34.37 2606:4700:50::a29f:2625 2803:f800:50::6ca2:c225 2a06:98c1:50::ac40:2225	virginia.ns.cloudflare.com virginia.ns.cloudflare.com virginia.ns.cloudflare.com virginia.ns.cloudflare.com virginia.ns.cloudflare.com virginia.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 52ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.15.226	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.208.39	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 37ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	kronborgtand.dk.mx.one.com	—	—	—

🔷 AAAA Records (IPv6)#

2 records 35ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::ac43:d027	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::6815:fe2	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 37ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.15.226,172.67.208.39 ech=AEX+DQBBtAAgACBMVhU6Pprc/Q2nBif/2QW9U82vLhRMfXSxE9CtcXcrPgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:d027,2606:4700:3033::6815:fe2

📝 TXT Records#

2 records 216ms

TXT Record
brevo-code:0c6055530b347f6206fbe9c7f5660d86
v=spf1 +mx +a +include:spf.a2hosting.com +include:_custspf.one.com ~all

✉️ SPF#

Policy	Record (kronborgtand.dk)
~all (soft fail)	v=spf1 +mx +a +include:spf.a2hosting.com +include:_custspf.one.com ~all

📨 DMARC#

Policy	Record (_dmarc.kronborgtand.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.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 2026-10-07 16:53:51

www	104.21.15.226 172.67.208.39 2606:4700:3030::ac43:d027 2606:4700:3033::6815:fe2 (AS13335) (address records, no CNAME)
www vs bare domain	Same network kronborgtand.dk: 104.21.15.226 172.67.208.39 2606:4700:3030::ac43:d027 2606:4700:3033::6815:fe2 (AS13335) www.kronborgtand.dk: 104.21.15.226 172.67.208.39 2606:4700:3030::ac43:d027 2606:4700:3033::6815:fe2 (AS13335)
Wildcard	No

✍️ DKIM keys#

2 found

Selector	CNAME	Key
default	—	RSA · ~2048 bit
mail	—	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: 5/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

2069ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2414953295
Primary NS (MNAME)	conrad.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-04 16:47:24

Field	Value
Registrar	ONE.COM A/S
Registered	2025-02-19
Expires	2027-02-18 (120d)

📋 WHOIS#

⏱️ Lookup Timing#

46ms

52ms

37ms

AAAA

35ms

TXT

216ms

CAA

67ms

HTTPS

37ms

TLSA

87ms

SOA

0ms

MTA-STS

91ms

DNSSEC

2069ms

SRV

91ms

Total

2499ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-04 15:57:24	1662ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-24 14:30:45 shown	2499ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-19 13:13:35	9166ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-12 20:32:49	2175ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-26 18:58:41	1396ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-07 06:51:25	17098ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-17 22:27:16	9840ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-24 22:53:13	636ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-24 12:19:05	873ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 11:14:50	575ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-19 11:46:22	857ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-18 06:11:11	1006ms	2 NS 2 A 1 MX	🔓 Insecure