c-kronborg.dk

📜 Historical scan 2026-06-16 18:40:47 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

c-kronborg.dk is a .dk domain served by 2 nameservers (piers.ns.cloudflare.com, wanda.ns.cloudflare.com). It was registered on 8 March 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.81.64 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is not DNSSEC-signed, has no 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 37ms

Nameserver	IP addresses	PTR	ASN / ISP
piers.ns.cloudflare.com	—	—	—
wanda.ns.cloudflare.com	—	—	—

🌍 A Records#

2 records 40ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.81.64	—	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.157.105	—	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

5 records 34ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	—	aspmx.l.google.com	74.125.131.27	lu-in-f27.1e100.net	AS15169 Google LLC
5	—	alt1.aspmx.l.google.com	172.253.158.27	so-in-f27.1e100.net	AS15169 Google LLC
5	—	alt2.aspmx.l.google.com	172.253.158.27	so-in-f27.1e100.net	AS15169 Google LLC
10	—	aspmx2.googlemail.com	192.178.211.27	lcbomp-in-f27.1e100.net	AS15169 Google LLC
10	—	aspmx3.googlemail.com	192.178.211.26	lcbomp-in-f26.1e100.net	AS15169 Google LLC

🔷 AAAA Records (IPv6)#

2 records 36ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::ac43:9d69	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::6815:5140	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 39ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.81.64,172.67.157.105 ech=AEX+DQBBiQAgACB6fwZmiM8HN6m0zArqRqb3a8Bz4w83oH5zMt0Ta81SRQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:9d69,2606:4700:3035::6815:5140

📝 TXT Records#

1 records 142ms

TXT Record
google-site-verification=_GvZLLOVx8-FqwBwRwWp60dV_dV5V7CoEExltjRC_Bo

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 2026-10-10 10:32:54

www	Exists, no address
www vs bare domain	www does not resolve c-kronborg.dk: 188.114.96.1 188.114.97.1 2606:4700:3030::ac43:9d69 2606:4700:3031::6815:5140 (AS13335) www.c-kronborg.dk: no address (all like this)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	Delete signal: the zone asks the registry to remove its DS (go insecure) 1 CDS, 1 CDNSKEY

🔗 TLSA / DANE#

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

🔐 DNSSEC#

122ms

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

🏷️ SOA#

34ms

Field	Value
Serial	2405802517
Primary NS (MNAME)	piers.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-15 05:39:08

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2004-03-08
Expires	2027-03-31 (164d)

🔗 Same registrant#

1 domain

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
kronborgskoereskole.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

37ms

40ms

34ms

AAAA

36ms

TXT

142ms

CAA

39ms

HTTPS

39ms

TLSA

82ms

SOA

34ms

MTA-STS

43ms

DNSSEC

122ms

SRV

0ms

Total

735ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-04 23:35:23	2520ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-30 23:22:35	712ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-30 00:56:09	3220ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-28 00:21:12	1629ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-27 00:04:27	900ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-25 23:40:28	10205ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-20 16:56:39	882ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-15 18:53:57	2519ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-08 16:01:00	2103ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-29 08:10:42	1134ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-25 11:26:25	847ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-24 19:28:19	3702ms	2 NS 2 A 5 MX	❓ Unknown
2026-08-12 15:55:59	6066ms	2 NS 2 A 5 MX	🔓 Insecure
2026-07-21 07:21:31	1797ms	2 NS 2 A 5 MX	🔓 Insecure
2026-07-20 02:19:18	1594ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-27 11:15:17	957ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-20 21:15:49	1338ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-20 19:45:17	1105ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-16 18:41:52	512ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-16 18:40:47 shown	735ms	2 NS 2 A 5 MX	🔓 Insecure